I lost my glasses in the ocean; help me choose a new pair!

I lost my glasses kitesurfing in some enormous waves at Waddell Creek yesterday! I went through the complete spin-cycle: caught in a wave, spun so fast underwater I didn't know which way was up, almost run out of breath, lose glasses, etc... I forgot to write my email address on them, so if you find a pair of glasses somewhere along the Northern California coast let me know! I've worn my glasses in the ocean for more than 6 years without incident; in fact, I lost so many pairs of contacts to the ocean, that I started favoring my glasses. Below you can see me just coming back to shore wearing my glasses -- on this particular day, I was so tired after 6 hours of kitesurfing that I couldn't get the food into my mouth properly. I choose that pair by wandering into an optical store and demanding "1960's NASA engineer glasses." They were probably more "graphic designer" glasses, but cool nonetheless. Help me choose what I should get next! I'm partial to http://www.optical4less.com/ because they're super cheap and believe me when I tell them "my prescription really hasn't changed and I don't need another eye exam."

Posted by ewilhelm 10 years ago

Source for sturdy tubes + clear stuffs

I'm going to be dropping a submersible (on a rope for now, no motors yet...) about 600 meters into open ocean. This 'Sub' will need a clear viewing window for a camera, and be sturdy enough to withstand about 700 PSI, according to WikiAnswers (apparently, one vertical meter- 1.09 PSI, right? I'm missing something, aren't I.) So, how thick/ what type of tube will I need, and where can I get it? The project is secret for now, don't ask why I'm doing it.

Posted by Rotten194 9 years ago

The best Christmas present ever.

The crew of HMS Ocean found out that they would be back in port after over seven months at sea. This is their reaction. From the video's description: After lots of time away last year (214 days) -- planned for 7 week deployment exercise with other nations Diverted to Libya and further operations Back 9 Dec after 7½ months away - 225 days with 176 at sea 400 people onboard (at peak during the amphibious exercises just under 900 onboard but approx 650 during Op Ellamy) Steamed just over 40,000 miles Burned approx 6,000 tonnes of fuel Operated 16 different type of aircraft off the deck Realities of deploying: 15 babies born while the ship has been away (fathers did get home to see mum and baby) 5 people were sent home so they didn't miss their own weddings. 1 sailor whose son's third birthday is on homecoming. Family meeting ship Ships company have missed: Summer holidays. Children's exam results Children finishing school and starting university The Padre missed his daughter's graduation. The ship's company made a Christmas DVD when they heard they would be home for Christmas. Happy Christmas, folks.

Posted by Kiteman 6 years ago

Do you have an appreciation of the ocean and are all about open-source? I'm looking for people to share ideas with me.

Hi, I’m working on a project about making society more aware of the ocean. This project is my master graduation project. The envisioned project will involve the open-source community; this is why I am looking for people to talk to on this matter and to share ideas. If you are already convinced, please send me a message. I promise you, I will not spam you to death. I am looking for people that have an appreciation or connection with the ocean and are all about DIY and open-source and are willing to share ideas with me. Some more info on the project: As I see it we (society) are very connected to the ocean, most of the everyday objects are in someway shipped across the ocean. Eventually ending up as plastic bits in the ocean. Even before the Industrial Age we’ve been exploring the world with ships on the ocean.  We’ve been shipping diseases, slaves, religion and tobacco around the world in small wooden ships. The ocean also acts as the source of life, in other words, all of the creatures on land came from the ocean. The ocean provides us also with an import source of protein to feed the world; fish. The ocean houses tiny creatures called plankton that are critical for the planet. Most people don’t realize that a mouthful of seawater contains millions of bacterial cells, hundreds of thousands of phytoplankton and tens of thousands of zooplankton. Although we have this strong connection with the ocean we have yet to explore 90% of it. In our ordinary lives we’ve been so disconnected of the environment around us, the only thing the majority of people see are the beaches, the endless blue, until of course, some oilrig blows up and washes oil up on the shore. The project I am working on sees opportunity in creating a connection with the ocean somehow. This is not an easy challenge, I cannot do this alone, I am asking a community of people that think outside the box, are hands-on and are compassioned about what they do for help. Message me if you would like to be involved!

Posted by frits297 6 years ago

Why does Kiteman Have an ocean in his avatar?

À²  ̯ ಠ

Posted by ReCreate 9 years ago

Instructables Shark Watching Trip!

First off, we didn't see sharks, but that doesn't mean we didn't have a good time! Yesterday (11/20/13) the Instructables crew went out on a rented boat (there were people to drive this boat) and went out to the Farallon Islands to try to see sharks because the site was able to get 1 Million visits in a single day!  So this was thanks to all of you! It was not the best day (bit rainy and cold), but we all had a good time and only 4 of us got sick!  Yay! Pictures provided by everyone!  Gif by Renee.

Posted by Penolopy Bulnick 4 years ago

Underwater Jetpack Project. [HELP NEEDED]

Im planning on making an underwater jetpack something like this. However I'm a bit to dumb to figure out all the ESC and electronic components of brush-less motor systems.   Im also limited because this is a school project and in order to be reimbursed the materials need to come from amazon.  I will be using it in a chlorinated pool for demonstration but salt water resistance would be nice.  My requirements are as follows:  1.  Propeller must be covered as I may do another project after this one that requires fingers (im thinking 6in diameter pvc pipe with chicken wire or a metal grill over the ends) 2. Modifiable for different circumstances.  (I already cut up an old backpack and screwed a plywood board to it for mounting the propellers and  batteries, however I may decide to go with hand or foot mounting instead.   3. A trigger operable switch. (Cordless drill style although I don't care that much about speed control.   I'm planning this project to be for a senior year high school project (next year) so I have plenty of time. Do you guys think something like this would work for the propellers?  Their for air so I would expect significantly reduced performance in water.  However if they are to high rpm/low torque to spin properly in water perhaps I could keep the enclosure and switch out the motors for higher torque ones.

Posted by TypeNameHere 1 year ago

Partial solution to trash in water? Maybe.

 Hey everyone, I had a couple of ideas for getting trash out of our storm drains/oceans/streams/rivers, the first one, this one has a couple of flaws: This is a very basic idea to skimming trash off the surface of water, a net. Preferably one with small holes to limit the amount of trash flowing out of it with the water. BUT, fatal flaw: It can also catch wildlife in it, and I'm still trying to figure out how to work around this. Any suggestions? Second, a filter of sorts for storm drains/streams: Imagine a metal mesh wedge, kind of like a snowplow wedge, that would go in front of drains and such (I'm thinking more for the type of streams and drains that have those big tunnels going under roads and sidewalks and emerge on the other side). The wedge could allow water to flow through, but direct trash off to the sides to collection tanks. I'll try to illustrate it below.                       - - - - - - - - <0 (the lines would be the stream, then the wedge, then the drain/tunnel opening. I couldn't do the tanks...) I'm eager for any suggestions/tips, improvements, and thoughts on these!

Posted by Zem 8 years ago

Geology in action: A mid-ocean ridge you can visit on vacation!

UPDATE Jun 2011:  ScienceNews has a very nice feature about Afar, with an excellent narrative summary of items since the current spreading event began in 2005. UPDATE Nov 2009:  Science magazine only keeps their news articles free for a short time.  The link below requires paid access to read.  Wikipedia has an article on the volcano. A news article in this week's (May 2009) Science magazine online reports on a very unusual volcano. Located directly in the center of east Africa's Great Rift Valley, it is spewing a unique kind of lava. The Great Rift Valley is a place where one of Earth's tectonic plates is actively dividing in two -- the eastern tip of Africa and the Arabian peninsula is separating from the rest of Africa. In several million years there will be a brand new ocean (not a "sea") like the Atlantic, and the Great Rift Valley will become its mid-ocean ridge. This African volcano is essentially an example of the undersea volcanoes that run down the spreading center along the middle of the Atlantic (Iceland is a set of them that are above the ocean surface). If you want to see what was happening when the Atlantic Ocean was forming, and Brazil was being broken away from West Africa, go visit Ol Doinyo Lengai in Tanzania. ADDED:  Besides the world's only active (on land!) natrocarbonatite volcano, the Great Rift Valley also has examples of sheeted dikes forming and breaking through to the surface.

Posted by kelseymh 9 years ago

Camping resource

This is a good website on how to do stuff and how to take care of camping equipment. http://www.outdooreyes.com/outdooradventureindex.php3

Posted by Yerboogieman 9 years ago

The TITAN 4 Undersea Robot Arm

Http://dayto.wordpress.com/2009/09/24/the-titan-4-undersea-treasure-robot/Pictures taken by me :D

Posted by Atomman 9 years ago

Floating Garbage Island Twice the Size of Texas Aimlessly Spins in Pacific Ocean

The largest dump in the world isn't outside New York or London or Shanghai but in a desolate stretch of the Pacific Ocean nearly a thousand miles from the nearest island. Held together by a slowly rotating system of currents northeast of Hawaii, the Eastern Garbage Patch is more than just a few floating plastic bottles washed out to sea; the Patch is a giant mass of trash-laden water nearly double the size of Texas.Full Article:Plague of Plastic Chokes the Seas in the LA TimesQuick Blurb:Oceans of Garbage on Vestal Design

Posted by noahw 10 years ago

Plastiki crosses Pacific

Plastiki, the boat made with 12,500 plastic bottles, has successfully sailed across the Pacific Ocean. The journey started in San Francisco and has ended in Sydney after 130 days and 8,000 miles on the water. The goal was to raise awareness about the problem of plastics in the oceans, such as the Pacific Garbage Patch. Congratulations to David de Rothschild and the rest of the crew. Plastiki Completes 8,000 Nautical Mile Journey Protesting Plastic Pollution

Posted by fungus amungus 8 years ago

Oreos Without Milk!

This is just a quick question and possibly a suggestion too (I'm really bored because I'm waiting for these ISO's to finish downloading). Has anyone else tried Oreos with a drink other than milk? I just tried Oreos with Cran Apple juice, and I think it's better. Any other opinions? (Reminder: I'm very bored.)

Posted by Gjdj3 10 years ago

Whats the appropiate paint/substance used for waterline painting

A recently constructed 24' hull (plywood on frame, 3 sections) that belongs to a set of outriger cannoes now need a coat of paint for the already marked waterline. the boat has yet to be primed. im thinking  "couple layers of regular exterior paint should do it" but it'd be a shame if i did'nt ask all you satly's here at instructables what you thought. (priming under way)

Posted by Jumpin Jehosaphat 8 years ago

How about LESS food recipes?

How about LESS food recipes.  Of today's list of INSTRUCTABLES, about half are just recipes. How about categories that we can opt out of?

Posted by Nate Ocean 7 years ago

The Inverted Map

This map reimagines the Earth with the idea that the oceans are the land masses and the continents are the oceans. It's interesting to see a world map where everything is connected and it would be possible to walk the entire circumference. It reminds us that what is "normal" comes from our own personal experiences.Whether the map is a Mercator map, a Peters map, or a map of something besides the Earth, that map can have a huge effect on how you perceive it. Just like statistics, maps can be deceiving so make sure you're questioning the sources and get the best information you can. link

Posted by fungus amungus 10 years ago

Squids in danger

Squids and other cephalopods have been found with high levels of "chemical contaminants" in their bodies. Since many ocean dwellers eat squid and octopi, scientists are worried that the entire food web is being comtaninated.Full story at Cnn.com

Posted by Lithium Rain 10 years ago

Growing numbers of jellyfish linked to global warming

The growing number of jellyfish in the oceans has scientists worried, as they say it is an indication of how badly the ocean is being treated. They are showing up in places where they have never been seen before, and this is being attributed to a number of causes, including global warming and overfishing of the jellie's natural predators. LinkyI can personally attest to this one. I went to the beach and got stung by these little nasties. There must have been thousands and thousands of them swimming around. When they sting you, it HURTS. I had whip marks on my arms and legs for hours. Stupid jellyfish...

Posted by Lithium Rain 10 years ago

How to make an animated aquarel world map?

I want to make an animated aquarell world map with changing flowing colors, not on photoshop... how can I do this? And then The color would blend in to the Ocean, for a website like this https://imgur.com/a/gQLz1

Posted by DIAGONALLIS 9 months ago

huge aquarium

I was looking at this huge fish tank at a music club in seattle. it was huge, and it looked awesome. it was alt water and looked like something you'd find in the ocean. well, I wanted to do something like this. any Ideas for making a really big fish tank really cheap? I was thinking on the lines of plastic personally...

Posted by mexx.admin 11 years ago

Amazing Papercraft Castle

This deluxe papercraft castle in Japan was made over the course of four years. It has its own lights and even an electric train! But seriously, that's enough of an explanation, just hit the link below for lots more pretty pictures. Go! A Paper Craft Castle On the Ocean via boingboing

Posted by fungus amungus 9 years ago

The Biggest Challenge of All... Who can make a submarine?

Good at math?(Or at least decent). Like getting wet? Then you should try and make a submarine. Who wouldnt want one? Now this doesnt have to be ocean worthy, just strong enough to work in lakes and ponds and slow moving streams.

Posted by McGyver2 7 years ago

Who are your "Tech Heros?"

When I was young I idolized Jacques-Yves Cousteau, in part because of the undersea technology (aqualung, minisubs, habitations, etc.) but also since he was one of the first to warn of overfishing and open-ocean pollution. Do young people have technology heros today? (Linus T. and Bill G. come to mind, but I was hoping for someone more interesting...)

Posted by gmoon 11 years ago

the weirdest dream...

I had this creepy dream, and i met eric and he got mad at me and started to try to kill me and the instructables robot was doing something (i forgot) and a bunch of scary stuff happened. so i woke up and ate a muffin, hotels give me bad dreams....by the way, i came back from reno on friday, and went to westport near ocean shores

Posted by Yerboogieman 10 years ago

UK couple transforms public bathroom into home

This UK couple did a pretty remarkable thing when they transformed a former public restroom into their current hoe with an ocean view. Sure they'll have lots of loo hokes in the future, but they also have a pretty killer location. Kudos to them for turning something that people wouldn't have thought twice about into something they would covet. A loo with a view via inhabitat

Posted by fungus amungus 8 years ago


Okay I need your guy's help, my upgrade for my cell phone is coming up in like a month and I'm stuck between these two phones, so comment and tell me which one you like best. http://www.t-mobile.com/shop/phones/Cell-Phone-Detail.aspx?cell-phone=Motorola-Cliq-Titanium http://www.t-mobile.com/shop/phones/Cell-Phone-Detail.aspx?cell-phone=Samsung-Gravity2-Deep-Ocean

Posted by bigdylan91 8 years ago

Building a convection model for plate tectonics and ocean currents

I'm building a model to show our museum visitors how convection works related to plate tectonics.  (It can also be used for ocean currents.)  I'm stuck on the heating source, though, because we cannot have open flames. The model is a cell of water, about 0.5" wide X 10" long X up to 8" high (depending on water depth). I would to implement some type of circuit with a resistor that produces heat at the bottom, and inside the cell, and battery powered.  At the top at either end would be ice cubes, to cool the water so it falls back down and recirculates.  To see the currents, the ice cubes have blue food coloring, and I use a long pipette to inject coloring at the bottom near our current heat source, and mug of hot water. I'm having trouble finding information on: - what type of resistor (how many ohms?, anything specialized for being submerged?) - how large a battery/ies for a 4-hour day on the floor (rechargeable, of course) - other steps to prevent corrosion It will need an on/off switch and a battery connector, too, of course... I'm sure I may be missing some other important things to consider, too. Any feedback would be great. Thanks~ -Adam-

Posted by adam.blankenbicker 3 years ago

The madness!

I just realized all the topics i just CreatedXD1 Why Do People have(had) Birds in there avatar?2 Why does Kiteman Have an ocean in his avatar?3 Why does Kiteman Have a Leaf in his avatar?4 Why does Everyone have the same thing in their avatar?5 Why does kiteman Have old Pictures in his Avatar?6 Why does kiteman Have his old avatar back?Too bad it ended, I could have broke a world record on posting so many related topics in the same week XD =P

Posted by ReCreate 9 years ago

LED Idea Contest

While we're having our own LED contest with the Get the LED Out! Contest there's another one happening across the ocean over in Germany that's being put on by OSRAM, called LED - Emotionalize Your Light. Top prize is 3,000 Euro.Unlike our contest you don't need to actually make anything for this one. Create an account and submit an idea along with a drawing or a render of what you have in mind and then it's off to the races. It's a multi-stage affair with voting and judging and opportunities to expand on your idea, but all you need to begin with is an idea. LED - Emotionalize Your Light

Posted by fungus amungus 9 years ago

Crazy fun, or a slow cruel death - I can't decide...

This is just crazy - two Ocean Engineering students created a "hamster-powered submarine" from "materials derived from common household objects" that connected a hamster wheel in a sealed, air-supplied vessel to a propeller, allowing hamsters to take themselves on aquatic jaunts.  (via BoingBoing Twitter feed) Seriously, it's a submarine powered by a hamster in its wheel.  I can't decide if the hamster is having loads of fun, or is being driven mad with terror. It doesn't seem very fast, though... They documented the build on their own website, but if you would like to see an instructable on it, go to the video and leave a comment to say so...  

Posted by Kiteman 6 years ago

Boat made from 12,500 plastic bottles to sail across Pacific

The Plastiki is a boat that is held afloat by 12,500 plastic 2-liter bottles. Built by Adventure Ecology and captained by David de Rothschild, the boat will travel 7,500 miles from San Francisco to Sydney. Its mission is to create awareness about the vast amounts of plastic that get thrown into landfill or end up in the oceans. In addition to the wind power, the Plastiki will also be propelled by crew members bicycling along. Rain will be caught to provide water and sprouts will be grown in a vertical garden. Check out the link below for a lot more info. Plastiki via inhabitat

Posted by fungus amungus 8 years ago

Amazing Family of DIY Pirates Cross Atlantic Ocean in Raft Made from Garbage!

This is actually old news at this point, but it's so awesome that I think it deserves some attention on Instructables. A unique family called the Neutrinos built a raft from garbage and scraps found on the streets of New York City, perfected their design during numerous trips along the coast, and then during the summer of 1998 spent 60 days floating it across the Atlantic in 20ft seas while fending off swirling currents and heart attacks!Needless to say, the story warranted some further investigation, upon which I learned that these empowered adventurers have built many rafts over the past 20 years. The children of the family were born in Mexico and raised in the circus. The more I read about their story, the more interested and excited I become.Check out the details at their extensive website - The Floating Neutrinos where they write about the other rafts they have built, brain reprogramming, and about their newest project: The Vilma B, a floating 128' orphanage housing up to 25 children!National Geographic TV featured their home-made a movie about their journey across the Atlantic, and a new movie about the family is on the way. Watch the trailer here.If you don't have time to dig through the entire site, you can check out the condensed summary of it all at http://www.paulsorganic.com/most-fascinating.htmIf anyone knows more about these people please reply - I can't stop reading about their adventures and getting exciting about floating somewhere myself!

Posted by noahw 10 years ago

Teen Attempts to Circumnavigate the Globe

Some of you may know already, but 16-year old Abby Sunderland made international headlines twice, once for her journey to become the youngest person to sail around the world nonstop unaided and again when her boat ran into trouble in the middle of the southern Indian Ocean. Good news sources on the story can be found here, here, and here. This topic has been tossed about on all manner of online blogs and forums, but I wondered what your folks' thoughts were on the matter. Inspirational role model? Too dangerous? Alternatively, what can the maker community either gain from or contribute to this story? Post your thoughts below.

Posted by purduecer 8 years ago

Strange Planet Part Two

Following along in the last post about the wild world of water, let's see what other natural oddities our Earth has for us. There's a strange sound coming from the ocean, they're calling it a "Bloop." The earth is known for whistling caves, and plopping mud puddles, thunder and earth quakes, so we know the earth is one vocal creature. But the bloop is new, and as of yet unknown. This is what we know: "Although the sound matches the profile of a living animal, it is much louder than any known creature can produce. Any creature that could produce such a sound would have to be many times larger than the largest whale."The story is here.What do you think it is?_BG\\via neatorama\\

Posted by lamedust 10 years ago

What can be done with the little plastic capsules from Kinder Surprise eggs?

Kinder Surprise eggs are hollow chocolate eggs - the size of a large hen's egg, containing a small toy - usually a clip-together kit of some kind, contained within an ovoid plastic capsule. http://en.wikipedia.org/wiki/Kinder_SurpriseThe capsules used to be two-part, but have recently switched to having a living hinge attaching the lid section. They're a little under two inches long and about an inch in diameter (the pic in the above link shows the older, two-part design - but they're the same size either way)Surely there's something useful that could be done with these little plastic containers - they close pretty tightly - so I guess they could be waterproofed pretty easily (LED 'floaties' maybe? - although releasing them into the ocean would be littering)

Posted by Atomic Shrimp 10 years ago

A sight for international skywatchers - &quot;Ring of Fire&quot; Eclipse

From SpaceWeather.com:SOLAR ECLIPSE: On Monday, Jan. 26th, the Moon will pass in front of the sun producing an annular "ring of fire" eclipse. This is not a total eclipse; the Moon will cover only 93% of the sun's surface. Nevertheless, the Moon's dead-center transit across the solar disk will produce a sight of rare beauty for observers along the "path of annularity." Best views are to be had from islands in Indonesia where the ring of fire will appear to sink into the ocean at sunset. Meanwhile, in Australia, southeast Asia, southern parts of India and South Africa, observers will experience an off-center partial eclipse. Crescent-shaped sunbeams will dapple the ground while high overhead the Moon takes a curved bite out of the sun. Please visit http://spaceweather.com for eclipse maps, timetables and photos.If you're in the areas where the eclipse can be seen, how about taking and posting pictures?Animated map of eclipsePDF map of eclipse

Posted by Kiteman 9 years ago

Ten Years

It's been nearly ten years since a load of people got excited about the year 2000 and the 21st century, what did we achieve? Well Fox changed (the logo if nothing else) from 20th to 21st 2001 Wikipedia and iPod launched, World Trade Centre demolished (by uncertain contractor). 2002 The discovery of Quoaoar leads to Pluto being declassified as a planet 2003 Facebook launched 2004 Those robots land on Mars, Indian Ocean earthquake / tsunami 2005 Instructables launched YouTube launched, New Orleans drowns. Chas & Dave play the Holmfirth Picturedrome (img) 2006 (for the mathematicians) the Poincare conjecture is proven (right word?) MySpace launched (subsequently bought by Murdoch at what was definately much more than it's worth) 2008 LHC starts up 2009 LHC starts up again, Moon "bombed" What events the last 10 years mean something to you? *the basis of the list came from New Scientist No2739/40/41

Posted by lemonie 8 years ago

Help finding scholarly sources

As many of you know, I am a Global Warming skeptic. However, I am still continuing my research and I would prefer to get my information directly from scholarly sources--conference papers in particular. Unfortunately, I am finding that the HUGE amount of rhetoric surrounding the issue are thumping my normally skillful use of Google into oblivion. I have found some links to various AMS conferences, but they have been mostly unrelated topics--lightning, ocean wave angle rates, etc.What I hope to gain from reviewing related papers, is an idea of what we KNOW about climate change and what we are only guessing at, information that is terribly difficult to find on the interweb.Any scholarly links would be appreciated.And to show examples (in a different field) of what I am looking for:A list of SIGGRAPH white papers.A scholarly paper on tone matching.Much thanks,Royal

Posted by royalestel 11 years ago

Terrestrial mass planet measured orbiting nearby red dwarf

From Science Magazine:A group of astronomers today announced the discovery of the least massive planet yet detected outside of our solar system. It is lightweight enough--between two and three times the mass of Earth--to almost certainly be rocky like Earth rather than a huge ball of gas. Although the planet orbits too close to its star to be habitable, a new analysis of one of its neighbors suggests a world with deep oceans.The observation of Gliese 581e, made with the usual radial-velocity residuals fit, is of a terrestrial-mass planet orbiting insanely close to a red dwarf star. Nevertheless, it marks a substantial improvement (a factor of three in mass) in the precision of the radial-velocity technique.Read the whole article (let me know if it's password protected) for details.Another news article (including a very nice diagram of the habitable zone as a function of the mass of Gliese 581) is available from Science News.

Posted by kelseymh 9 years ago

Kitesurfing explanation

I've noticed that there are a lot of instructables about making kites and making stuff to get pulled by your kite. But they all seem to assume one already knows how to kitesurf/control the dang kite, which is kind of an issue for people like me. I'd like to see an instructable with photos (maybe even video) of how to kitesurf, specifically omving the kite around and getting pull in various directions. With explaination in plain english of the headache-inducing technical terms. Sorry, but when I googled directions all I got was more confused. Of course, I'm thousands of miles from the nearest ocean, so I won't be doing this on the water probably (are reservoirs big enough?). In fact, I plan on learning all I can about how to control a kite so that I can go tool around out on the plains on a mountain board type thing. P.S. On a mountain board, do the trucks flex and turn the wheels somewhat like on a skateboard, or can I mount them rigid?

Posted by Rishnai 10 years ago

Help (advice) with building a Nautilus

I believe that nature in itself has the solution for all our problems . I believe that a combination of mechanical engineering and marine biology (marine comparative bio-mechanics) can provide a new scope of development . I have always been fascinated and intrigued by marine animals which have survived billions of years and great changes of the Earth . ( eg . nautilus)  [http://en.wikipedia.org/wiki/Nautilus ] . Its my understanding that this cephalopod has the most effective and energy conversant method of locomotion. It uses water jet propulsion for motion and uses the air cavities inside its shell for buoyancy  . These mechanisms of locomotion can be studied and modified for creation of low-speed , high-efficiency underwater locomotives . The Nautilus v.1 is a fusion of both biomechanics and state of the art electronics. It uses the habitual and operational features of the living fossil nautilus. The living nautilus is the sole inspiration reason for this underwater utility simply because of its magnificence. It has survived for millions of years in the open oceans which is a remarkable feat in itself but surprisingly it makes a daily trip of 150-200m from the ocean bottom to the surface nocturnally for feeding. Even though Nautilus v.1 uses many of the systems used by underwater rovs , it stands a class apart by achieving partial autonomy . The Nautilus v.1 is far superior from its rivals such as openrov, sea perch, etc. because of its low power consumption and longevity. It attains this by excluding power consuming components like propellers. Its operation is completely on the basis of neutral buoyancy attained by productions of gas bubbles by simple water electrolysis. The gas bubbles are collected in different gas chambers for operation at different water levels. The salinity of sea water facilitates water electrolysis and more gas can be produced with less currents. Graphite electrodes are used to prevent electrode corrosion. The electronics part is still under discussions for an optimum control unit. This will act as the base for addition of sensors and locomotive systems. Currently the main two platforms under work are the beaglebone black and the android versions. Both have their own advantages and disadvantages. Beaglebone would be optimum for component level additions, such as sensors can be added on, whereas in the case of an android system such as a smartphone, most of the sensors are inbuilt and their raw data can be attained. For progress till now, please visit http://opennautilus.wordpress.com/

Posted by cecilj 4 years ago

A Transatlantic Tunnel, Hurrah!

Deep beneath the Atlantic Ocean, forgotten for the best part of a century, lies a tunnel linking London and New York.It was built on the whim of a Victorian inventor with the aim of linking two great cities and developing the kind of friendship that still exists today.But bad fortune befell the venture - and the tunnel lay idle ever after.Until today, that is.One end of the "tunnel" emerges next to Tower Bridge on the banks of the Thames in London - the other is next to Brooklyn Bridge on the banks of New York's East River.It looks like something HG Wells might have imagined.Each end has a giant telescope-like construction which appears to punch its way out of the earth.There are dials, and levers, and thermometer gauges on the side of the 20m long brass and wood construction.Peer into it and you can see people on the other side of the Atlantic.Wave at them, they wave back at you.Web-cam it ain't, but the Telectroscope is fascinating. I hope it's stays operational for quite some time.Telectroscope websiteDaily Mail articleBBC StoryBBC Video

Posted by Kiteman 10 years ago

Tall PVC Flagpole

I know there are already instructables that show how to build a PVC flagpole, however what I need to build is different.  I want to build a flagpole that is 15-20 feet tall and can withstand relatively strong winds.  In addition, it needs to be portable and be able to be disassembled, so the sections of PVC can be no longer than 5-6'. I am worried that just using standard PVC connectors to connect the different sections will not be strong enough to withstand the wind.  This flag will be placed in the sand on a beach facing the ocean, so a 15-20' tall flagpole will need considerable strength. I figured I would use a 5 gallon bucket filled halfway with cement as the base, and then bury the base in the sand so it is sturdy on the bottom.  From there, I am having trouble coming up with alternative ways to attach the sections of PVC (besides connectors) that will withstand high winds and not snap.  Do you think the connectors will in fact be strong enough? If not, are there any good alternatives? Lastly, would drilling holes into the PVC (to attach eye hooks) compromise the strength of the PVC too much?

Posted by fanttamdiv 6 years ago

Do you live in East Bay?

Don't mind me - I'm just tapping all my resources :D I'm looking for a place to hang my hat in the East Bay area for the summer. I just need a place to sleep, cook a meal and park a car (and lock a bike) :) My goal is pack light for this trip. To be honest, I probably won't be around too much as I'll either be at work or exploring the area - this is my first adventure on the west coast (I'll miss those east coast ocean sunrises :P). I've been watching craigslist (more like waiting for replies :P) and I found the "420 compliant" person to be hilarious... But I'm not interested in being around it... So if you have an extra room (hell, even a camper - as long as I can take a shower somewhere) or anything - let me know. Or, if you know someone that may have a place - do share :) Feel free to ask any questions. If you prefer, my eMail is trebuchet03 at gmail dot com . Oh... and the hat I hang... it's a fedora - just because the top hat was too expensive.

Posted by trebuchet03 11 years ago


WipeCarbon campaign designed to kick-start a million pledges from all of us which will reduce emissions of Carbon and help us to reduce the side effects in Global Warming. We are not looking for anything life changing here. Small commitments will not cost you a cent but they will make a big difference! How much does it cost to switch off your lights when you’re not using them? Or to switch off your electronics when they are not in use? These are just some of the small habits which we hope to inspire. A million of these small commitments is a big impact. Its that simple. Each pledge is one more person who cares about the planet. One more person who thinks before they buy or who considers how to reduce the energy waste in their lives. One more person who knows that global warming will not be solved by a single person but by all of us working together. This is what Wipecarbon is about. Come Let us all share and spread this beautiful message around with our loved ones and make this network a strong foundation for creating this Green Globe . Our initiative will surely make more and more people to drive towards it and take this pledge Million of these commitments will make it a ocean and create a beautiful globe joining hands with us. www.wipecarbon.com

Posted by wipecarbon 10 years ago

looking around for tutorials

I am suggesting tutorials on the following. All passive components and prefereably vacuum tubes can be used to build the following circuits.   Analog computers that are programmable and hopefully intellegent. with these you should process many signals at the same time. and instead of displaying results on an oscillscope, make a monitor and a gui.   I have a theory for a power supply. I think it works im not technically able to build the entire circuit yet. It's all passive. its a passive AM radio that sends a 60 hz sine wave. then on the other end you have many many antennas attatched to a passive receiver circuit. because each antenna will induce an electric field from the air, you should be able to get lots more power out of the circuit than you put in. and because its antennas, its compact and light weight.   And if you can figure it out, you can build plasma rockets too. I need some more information on how plasmas travel through an electric field.   but you know if you want to, you can build cars, boats planes, houses, cookware, sensors, surveilance, recording studios, 3d printers etcetera in passive electronics and post tutorials on it.   I am getting somewhat close to growing carbon based electronic components on a tree. I have some(a few) molecules in mind and I am starting to research and make progress on sequencing DNA.   If you want this information it is simply yours. but I need analog flight simulators, spaceflight simulators, weather simulators that use chemistry and math to predict the weather, ocean simulators that simulate all of the bathymetry of the ocean to predict surf and erosion.   aircraft designers. I have a motor that i am designing like the following. It only uses permanent magnets at the moment and it works similar to an alternator. If you can figure it out, you can build it too.   I have an alternate way to make bearings by using cylindrical magnets(the kind with the hole in the middle) and one is attracting and one is repelling. this should be able to make it so that the magnets levitate and spin freely.   Again if you want this information it is yours. YOu can also make analog computers compatable with software that exists today like linux. it is possible. it just takes some time and some thought.   ANyhow anything you want make it wireless make it programmable and make it and post tutorials on it.   I want EVERYTHING to be wireless from the computers to the recording studios to the rockets.   ANyhow thanks and have fun and stuff and it might be fun and it would help everyone and would help your compnay to produce these tutorial but you know wireless guitars, wireless amps, wireless record players wireless cnc machines, wireless laser cutters wireless induction cooktops etcetera. you can even make a record player that instead of using that metal thing to vibrate, you can use like sonar. You know this is just some cool stuff to consider developing. The radio based power supply will work, it just needs some fine tuning and same with the motor, but yeah have fun and be easy with this stuff itll take a while. but you know if you build rockets, spin the rockets to create a strong electric field, but you know i could use tutorials on how plasmas move and accellerate through an electric field etcetera. and for god sake, build EVERYTHING!  

Posted by tyandisi 2 years ago

Fireball over Colorado

What are the odds? On Oct. 28th at 7:29 pm Mountain Daylight Time, a random meteoroid hit Earth's atmosphere and disintegrated with the luminosity of a full Moon. The impact, which could've happened anywhere, took place directly above an all-sky video camera in Guffey, Colorado. "I've received more than 100 eyewitness reports," says astronomer Chris Peterson, who operates the camera as part of a nightly fireball monitoring program. Combining the data at hand, he estimates that "the meteor had a ground path about 170 miles long and traveled from east to west at 34 km/s (76,000 mph).""I was lucky enough to see it myself from inside my house through a window," adds Thomas Ashcraft. What's amazing about that is he was located 300 miles away in New Mexico. "It was brilliant turquoise and green and lasted more than nine seconds." Ashcraft is an amateur radio astronomer and his receivers picked up echoes of distant TV transmitters bouncing off the fireball's ionized trail: listen.Using a computer model of Earth's meteoroid environment, Bill Cooke of the Marshall Space Flight Center calculates that fireballs this bright come along once every five months or so. Rarely, however, are they witnessed. About 70% of all fireballs streak over uninhabited ocean while half appear during the day, invisible in sunny skies. To catch one in the crosshairs of a meteor camera on a dark albeit cloudy night is good luck indeed.Cloudbait SkycamOther observers caught video of the event, and recorded the radio noise it made.You could have recorded the event yourself, if you had followed this Instructable.Updates at SpaceWeather

Posted by Kiteman 9 years ago

Killerjackalope's social experiment results

Well I've been conducting a secret social experiment using shopping bags and the environmental topics everywhere as a media for this to happen. Basically my plan was to see if I could affect the decision of whether or not to take a bag when it's not completely necessary, to change the course of decision I used different phrases and tried to get a more accurate measure by choosing the same people that come in for milk or bread each day.The phrases are:'Would you like a bag?''Do you want a bag''Do you need a bag?''Wee bag there, mate?'Bag?'The results were really quite interesting, the one putting emphasis on need (very subtlety) reduced bag takings by over half in a day, whereas 'Wee bag there, mate?' produced a very high bag taking day because it detracts from the bags impact as an object. The other things I found was that it's actually possible to control some customers bag taking completely, there's a customer that comes in every day to get milk and I have managed to control his bag taking with about a 95% success rate, so shopkeepers unite and we can eradicate unnecessary bag taking, thereby reducing the majority of plastic bags that end up in the street and ocean, landfills are another story, thankfully my stores bags are fully biodegradable...What do you make of all this, and is it possibly a bit much power to give to a shop worker...On another note I have curtailed the efforts of one customer I know as the bag thief, he used to take five or six for various uses, through gentle shame jibing he's now down to one.

Posted by killerjackalope 10 years ago

[newsletter] Burger Recipes, Hot Tub, Italian Wedding...

July 3, 2008 Sign-up for this newsletter: function openSubscribePopUp(src){ var emailValidate = /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/ if(emailValidate.test(src.value) == false){ alert("Please enter correct email"); return; } window.open("/newsletter/newslettersignup?email=" + src.value,"newslettersignup1","status=yes,scrollbars=yes,resizable=yes,width=420,height=250"); } Welcome back! O'Reilly Media (publishers of MAKE) are working on an Instructables book. To see how you can win a mention in the book, check out our new Book Contest. The Robot Contest has been extended for two week.! The new deadline for entries is now July 13, so show off your robot's best features! Both the Lonely Planet Travel Tips Contest and the BBQ PDQ Contest close for entries this weekend. Use these last few days to enter an awesome Instructable to win greta travel books or an Instructables apron. Upcoming: Next week we'll be starting our Horny Toad Invent-a-Sport Contest. Win a ton of cool clothes from Horny Toad by submitting your own original sport! "1UP Mushroom" Mushroom Burger! by momo! Traveling by Scooter by dbc1218 Put A Spring In Your Step by xclinic Waikiki 'ahi (Tuna Steak) Sandwich by sbdesigns The Elivinator Project by GWJax Wood-Fired Ocean Hot Tub by nagutron How to Build The BeetleBot v2 by robomaniac Fresh Ground Beef Burgers by rsub8 A Garden Shower in 10 minutes for $8 by Camillo Miller Robot Costume With LEDs by joshf Make your own horseradish by knarx KidWash : PVC Sprinkler Water Toy by m32825 Extended for two weeks! Get published in the Instructables book! Closes for entries on July 6th! A "Jungle Cruise" Playhouse by madhatter1138 How to Get Married in Italy by fungus amungus Incredible HULK Nintendo Wii by BeerBellyJoe Prince Caspian's Sword by KaptinScarlet Now go make something awesome, and I'll see you next week! - Eric Sign-up for this newsletter: function openSubscribePopUp(src){ var emailValidate = /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/ if(emailValidate.test(src.value) == false){ alert("Please enter correct email"); return; } window.open("/newsletter/newslettersignup?email=" + src.value,"newslettersignup2","status=yes,scrollbars=yes,resizable=yes,width=420,height=250"); }

Posted by fungus amungus 10 years ago