Scientific Theory

I am working on a scientific theory and I need a little help. I have 2 car batteries in series to create 24v need to power an electric motor. The motor is 14.5 amps and I need a way to control the amperage from the car batteries to the motor. Any help would be greatly appreciated.

Topic by Ice Dragon 6 years ago  |  last reply 6 years ago

Scientific Method Contest

I just saw the contest and was left with a few questions:  the description says entries should apply the scientific method to every day life, but real scientific projects would be acceptable too right? Reason I'm wondering this is because I already had a scientific ible planned, this would be a great moment to make it! I'm also curious about the Youth project prize, do you have to include something in your instructable in order to have a chance of winning it? 

Topic by emilyvanleemput 5 years ago  |  last reply 5 years ago

Scientific thinking in the classroom?

Hi, So recently I have received a very open assignment from my English class. In my high school we are having an independent study, during March. I have decided to do some research and hopefully a project about scientific thinking. I was reading Absolute Zero, and the Quest for Cold when it struck me how open scientific thinking, and research was open to many people. Famous scientist like Joules, who was a brewer, had whole other careers besides their scientific research. And even more recently, Bill Nye style science, where anyone can follow along at home, is not seen any more. Shows like the 11th Hour, and Jimmy Neutron make science into some thing distant, and limited to a special few. I see sights such as Instructables as the counter movement to that. Inviting all sorts of people, to experiment, build and learn about science themselves. Especially I enjoy reading about the green projects, because it represents a change in thinking, where everyone can pitch in to make a difference and every experiment and gadget is worth exploring for the sake of the planet. With my class I would like to highlight how open scientific thinking really is. I am wondering if anyone can think of a project with the right amount of wow factor, and educational value, to highlight the individuality of science and engineering that instructables so well demonstrates? I would like everyone to walk away thinking, "that experiments and science research is with in my reach, and that I could make a contribution to it if I want to." The ideal/mythical project that I am thinking of doesn't need to demonstrate any scientific principal specifically. In my research so far I have liked the green projects, because I believe that from those projects and thinking seen on instructables, real progress will be made to help people and the world.Thanks! Alwaysmod

Topic by alwaysmod 10 years ago  |  last reply 10 years ago

Edmund Scientific: Question

Has Edmund Scientifics (originally Edmund Science) bee taken over by a company outside the USA? The only reason I ask is that, I was reading down through the Geek Tech stuff, and when I went to descriptions, I found stuff like this: The Privacy Safe can detect the strength of radio frequency generated by different types of LED signal indicator such as wireless video camera. When a suspicious object is approached or located, the "Red" light will be on and the alarm will beep continuously. The superb bright torch could illuminate allows you to find things or read in the dark.That nearly drove me to distraction reading grammar like this from a supposedly scientific catalog. I remember when I was much younger, you couldn't even find a misspelled word in their catalogs, now I can hardly read them without wincing . Anyone know what happened?

Topic by Goodhart 9 years ago  |  last reply 9 years ago

Scientific Grandstanding at MIT

Witricity at MIT.Am I missing something here? It's a transformer. This is how my wife sonicare charges.

Topic by Tool Using Animal 11 years ago  |  last reply 9 years ago

awesome scientific method project?

I need an awesome project (around 8th grade level) that uses the scientific method. making something glow? making my own keyboard? help?

Question by gl0rious 7 years ago  |  last reply 7 years ago

Scientific Experimentations with limited ressources ?

Hey everyone, I've searched instructables about interesting scientific/chimic experimentations , but you always need fancy stuff you can find only on internet , I've enjoyed the green fire instructables , it had only two items requiered , easily found in pharmacy and in Supermarket but I really want more to do ! Thank you for reading.

Question by Anykey 7 years ago

how to make Bluetooth enabled scientific calculator???

Question by ritesh nair 7 years ago  |  last reply 7 years ago

NASA Crash lands on the moon for scientific reasons

NASA crash landed a space craft named "SMART-1" into a crater in the southern parts of the moon where the sun never shines to "kick up the dust" and analyze it with a following craft called "Centaur" for water and mineral compounds. I watched it live here which I have got to say was pretty cool, but you can watch the last bits of it here Watch the guy try hi-five his mate.Whole story here, it's pretty amazing.

Topic by Kryptonite 9 years ago  |  last reply 9 years ago

Is anyone familiar with tems as a scientific term or abbreviation?

It was used in a comment to me to indicate some kind of activation energy of crystallization or some such. You can see the comment at

Question by bowakowa 10 years ago  |  last reply 10 years ago

Think economically and scientifically to answer this big question

I live in a country call Myanmar in here we have often and long lasting blackouts.Mostly without reason or i don't know the reason....whatever my point is how to light my house or my country without harming the world (enviroment) and without complaining the Government???? FYI: Myanmar is a country in S.E Asia border with Thailand and India PS :In my country blackout is so often that everyone,who can afford, buys own generators,small ones, which uses fossil fuel and HARM OUR WORLD. thanks for reading my question .

Question by harrypoter 10 years ago  |  last reply 10 years ago

iPods as scientific tools (app-creation challenge)

I can't help noticing that there are a lot of kids with iPods at my new school. I have a half-warmed idea that this is an under-exploited resource - these things are packed with sensors that most schools cannot afford to buy for themselves. Does anybody know of any apps that can be used to easily access this data in a form useful for students?  For instance: the iPod replaces the bob in a pendulum and records the time it takes to swing, and the forces acting at each moment of the swing, then displays the data in a graph on the iPod, or uses the wifi link to email the document in a form that can be used by an Excel spreadsheet. And not just acceleration and time, but sound and light (isn't there an ambient brightness detector in there somewhere?). Suggestions? Any recommendations? Edit Kitewife bought me an iPod Touch for Christmas!  I have so far installed the following apps that use the on-board sensors; SPARKvue (accelerometer display), Signal Gen (an audible signal generator), SoundLevel (a free decibel meter / sound oscilloscope) FreqCounter (displays a continuous full-screen oscilloscope display Decibel 10 (analogue & digital sound level meter, which will email data for you) SpiritLevel & iTools (for measuring angles and levels by moving the iPod) Protractor (lays a protractor over the view through the camera, allowing you to measure "real" angles you can't reach (say, of a roof-line, or between branches of a tree). What I cannot find (yet) is a decent app that gives a class-room-useful read-out of light levels - they don't tell you the light-level, they tell you what f-stop to use on your camera. The next job is to find ways to use them in lessons, or as homework tasks. Question: Is anybody reading this able to actually create their own iPod Touch apps?  The apps I've downloaded so far are fine, as far as they go, but they really need a better way of getting the data out in a form that can be manipulated (eg by spreadsheets).

Topic by Kiteman 7 years ago  |  last reply 7 years ago

Mono pole / single pole magnets!?

I made a quite intersting discovery today.The use of mixed orientations for a stronger or more directed field on one side and a much weaker on the other side of a magnet is nothing new. But if you check modern wind turbines or even just any old hard drive you find "chokes". I talked about shielding before but combining shielding a choking provides again another level of manipulation.If you ask anyone who claims to know magentic field or sience in general then you right away hear: There is no such thing as magnet with just a single pole!Like a battery one pole can't exist without the other!Keep going and your conversation parten either get angry or declares you a nut case.Also said before: The laws of nature and physics are not set in stone or complete for that matter!We only use what we know, or to be precise what we told to take as facts.A magnet with just one pole is impossible to manufacture, if you only think like making the magnet like any other magnet.Even cutting it in half will only give you two normal magnets again.Why is that so?How are magnets made is what you need to know.No matter the material they start as a blank and during the final processing an intense electromagnetic field is used to "prime" them.Like you would do on a screwdriver the material then keeps the "charge" and becomes magnetic.And this process requires a certain orientation.Imagine a big hydraulic press to make the magnet with some super strong electromagnets right beside the forms.Explains why you won't find a block magnet with the poles on opposing corners - the form is not designed to be rotated ;)Ferrite magnets can often be machined.If you mark the field direction of a block then you could just cut it into the shape you need.Like a half moon, triangle, pyramid...The orientation does not change, so you need to create the cuts so your required orientation matches the orignal block.Creates a lot of waste, is messy and often the magnets shatter.Still not possible to create a mono pole ;)But it allows for a great deal of field manipulations.For example a thick north and a thin south pole would show very different field strengths at the poles.How to create a mono or single pole magnet then??If you think outside modern science restraints it is suprisingly easy!You see, unlike a battery the magnet does not care if the "current" flows back to its own pole or a pole from a different magnet.In a hard drive the choked magnets have a field strength between them that is not just twice as much as th one from a single magnet.The field between the magnets is very stable too!No matter where you measure it is the same.Place two magnets in the same configuration with the choke and all you get between them is a mess.To understand the reality with magnets I need to explain a bit more though:If it does not matter from where to where the field lines go the it becomes obvious that you can guide them.Horse shoe magnets of the old kind where just two steel bars with a block magnet between them!Take a compass and check from what distance your magnet will start to affect the orientation.Now take two iron bars, rods, block or similar of about twice that length.Place the compass between one end and the magnet between the other end.Even with a little gap your compass will still move!You just extended the length of the field lines and directed them somewhere else as it also works with odd shapes.We know know and confirmed how choking works and as shielding is basically the same thing but for a different purpose you might get an idea where I am heading already.A "potted" magnet, like what you find in a speaker or as a hook magnet utilises two destinct features.a) A ring magnet is used.b) The field lines are directed to a specific area.One has them directed into a gap for a coil like in a wind turbine, the other to the surface to massively increase the field strenght in that area.If you take either apart you will notice the magnet just by itself is considerably weaker.Removing a pole from a magnet...If you paid attention so far and have a few magnets around then you already developed a feeling for the difference.Lets crank it up a notch, shall we?Make this experiment:Take two identical magnets and a soft steel bar or similar of lesser thickness than the magnets.Usually around 2-3mm for smaller N52 Neodymiums will do.If you dare make the steel the same size as the magnets.Now place one magnet on the steel and use the other to observe the difference in feel.There won't be much and both poles should still fell like before only that the field is now slightly longer.Trying to get two magnets to touch at the same pole is really hard, but see what happens if you add the other magnet on the other side of the steel...Despite having the same pole on the steel they won't repel and stick to the steel.Checking the field now with a magnet provides a very different feel!It is like having a magnet with a split pole where the opposing pole now is in the center.Impossible I know but you have it in your hand, so deal with the explanation yourself ;)And if that is so damn easy then how hard can it be to actually remove one pole fully?Design of the impossible magnet...If you want the south pole only then it would be the entire surface of your impossible magnet.That means you either need to make sacrifices or get creative for the next steps.Easiest from my experiments is to sacrifice like all scientists do and allow for some minor gaps.I won't give any dimension or step by step instructions.Think 3D and use your imagination.Our impossible magnet starts from the center.All magnets used should provide the same field strenght!To be precise it means no matter their grade, the the "force" of the magnets should be as close to identical as possible even if the size is different.You can use stacks or different types/grades...The center is a square block of soft steel, or iron as pure as possible - it needs to have a low "resistance" if you compare them to batteries and to avoid confusing terms.On this "dice" you place one magnet on each face, preferably of identical size to the block.So, for a 10x10mm block you use 10x10mm magnets -simple isn't it.All magnets are place with the same pole onto the block!In out example to get the south pole outside you would use the north pole.Now use six bigger magnet blocks for another layer.This time they are placed in attraction mode, meaning you let them stick together naturally.The resulting magnet will be far from perfect but you will have a hard time finding a strong attraction to the soth pole of a magnet if you move it around your cube.If you check the geometry you will now see how 45° degree angles and matching sizes for the blocks would be beneficial.Using ferrite magnets you can machine them to the desired size and use a thin aluminium or breass frame to hold the outside properly together, like edging on a fancy tranport box or chest.Check the magnet now and try to find anything else but a destict south pole on all faces and corners.No more nother pole....Does that mean it really is a mono or single pole magnet?Since modern science does not even consider a construction like this to be worth testing you already know the anser.For those working on a different level with magnets it will be a true single pole magnet.For the rest it will just be another fake.As by science a permanent magnet is defined to have two poles and to have field lines going from one pole to the other.All modern machines using them operate on this principle and "fact".But if I would give you a block of steel that has a core of lets say brass and a suffien wall thickness...Then this block would appear to be a steel block and nothing else.Modern science fails to see a magnet any other than a battery!If the "current" does not need to go back to same pole and there is no need for the field lines to go back to the outside pole then it is a single ple magnet like the faked box is a steel box.The physical outcome or in our case magnetic field is what defines it!The contra...All good has some bad, magnets are no different.Purely scientific viewed it would be impossible to create a gap free magnet like I described.And because never all field lines will take the shortcut there will still be a small amount of "north pole" to be found on the outside.But if that is in the range of about 1% of the field strength of the magnet then I say it can be neglected for almost all real life uses of such a magnet.Like the Halbach Array it is just a neat way of manipulating and if you like bending the known interpretation of our scientific understanding.Possible uses for these magnets exclude convention designs and for this reason alone anything you create with them will be the target of scepticism to say it nice.Ok then, what real life uses could there be for something we never needed?The question is the answer, as the impossible magnet is the solution.Ever watched these shopping shows in the night program?"It solves problems you didn't even know you might get..."Means that if you ever get the ide that your project requires a single pole magnet then you know how to make one ;)All I can up with would go against common scientific understanding and teachings, so I will spare you with my use cases ;)And what is missing here to actually make it work?Quite a lot as you might have noticed in your experiments if you use really good test equippment.Not so much however if you consider what I said about shielding and choking ;)Provide a path of far less resistance and shield the rest that still bothers you.I am not providing a ready to go model here that you can buy, someone else will do that if they see a financial gain it.My gain is provide a new understanding of things we forgot by giving your brain things to work with and develop.You might still say in the end that my way (or your results) are not good enough in some way.But then please also consider how many other people or documents you might be able to find that would have provided you with this information.Free energy is only a myth for as along as we allow ourselfs to only trust what modern science allows us to have.Allow the old knowledge in and every now and then simple ignore what you know and things become possible sooner than you might think.Wind and water were used as a source of free energy since the dawn of mankind.Our first motorised boats used the same "wheels" we already trusted to be driven by water to power a mill, saw or similar.And after we learned about motors we also found a way to make wind - by reversing our trusted wind mills into a fan.Instead of using the free energy to generate power for us we evolved to use create wind and propulsion by providing power to drive the same thin in reverse.Using the sun for power other by using a mirror was seen as witchcraft throughout history, then we got solar cells...Same for heat in the form of peltier elements and other things...Why then should magnets be any different??Just "Because it is so!" did not work for wind, water and solar, not even for heat....All it takes is a little notch in the right direction to change the way we think about magnets.We have no problem using electromagnets to make a motor spin.We have no problem using magnetic field of any kind to drive motors or generate electricity.We even fail to have a problem by manipulation electromagnetic fields for that purpose.But we struggle like an ant in sand hole to reach the surface again to see what is outside our trap before something grabs us from behind when it comes to permanent magnets.Even worse if you dare to claim your magnetic machine delivers a higher output energy than what you use to make it run.And wasn't it exactly the same ignorance and manifested "knowledge" that got revised so many times throughout history already?Again: Why should magnets or their understanding of interaction be any different?If you follow the above with just matching magnets and the core cube then the result will be at least very surprising to you.Allow this surprise to be an inspiration to improve instead of seeing as a proof of failure ;)And if you made it then please post about it here.Let me know what disappointed you with the outcome.Let me know what really got you wondering.Let me know if you found a suffiently strong north pole to rival the impossible southpole! ;)Start sharing, make other people wonder and make them share it to, let us go viral!The first to post a conclusive Youtube video with results is certain to get a lot, lot, lot attention....

Topic by Downunder35m 2 months ago

i want to modify my casio 991ms scientific calculator so that it can store text files .. plzz any one can help me??

I want to modify my casio 991ms scientific calculator so that it can store tex files ..i think a external memory card and prorgramming will do tthis plzz any one can help me??

Question by nmittal707 7 years ago

i want to modify my casio 991ms scientific calculator so that it can store text files .. plzz any one can help me??

I  want to modify my casio 991ms scientific calculator so that it can store tex files ..i think a external memory card and prorgramming will do tthis plzz any one can help me??

Question by nmittal707 7 years ago  |  last reply 7 years ago

can somebody tell me the scientific reason behind that? Answered

I saw  when i wrote with onion juice on a paper, it could not be seen.but after a while, when i put a slight heat on the paper or ironed it, i could see a faint  appearance of the letters i did it happen? 

Question by ms10 7 years ago  |  last reply 7 years ago

Congratulations on SciAm Article

Since no one here has done so yet, I thought I'd post congratulations to the members of the Open Prosthetics Project for their article in the October 2008 Scientific American.

Topic by kelseymh 10 years ago  |  last reply 10 years ago

How do you do a square root in Windows Calculator when in scientific mode?

Is it just me, or is it impossible to do a square root in Windows calculator when you got it in scientific mode?

Question by doctasnowman 9 years ago  |  last reply 2 years ago

i need a scientific answer for why people look up when thinking.?

When people are honestly thinking...why look up??? a great thought through, scienctitic answer would b appreciated!

Question by cheezies 9 years ago  |  last reply 9 years ago

The feeling of waves? Answered

How do you scientifically explain the feeling of still being in the waves at the ocean or the wave pool after you've left the big blue?

Question by Fizzxwizz 9 years ago  |  last reply 8 months ago

The 5 Scientific Experiments Most Likely to End the World (Humor)

Let's face it, we really trust science. In fact, studies suggests that the vast majority of people will murder another human being, if a guy in a lab coat tells them it's OK.But surely in their insatiable curiosity and desire to put knowledge above all things, science would never, say, inadvertently set off a chain of events that lead to some sort of disaster that ended the world. Right?Well, here's five experiments that may prove us wrong.Slighty NSFW, as it cointains a few bad words, but this is hilarious!

Topic by Keith-Kid 10 years ago  |  last reply 10 years ago

What is the scientific principle behind using s plasma globe to light up a matchstick?

Why does a matchstick light up when one places a coin on a plasma globe, uses a paper clip to hover around the coin while holding the matchstick alongside the paper clip? (note the video does not use a matchstick, but it still applies the same concept)

Question by 9 years ago  |  last reply 9 years ago

In what way is the scientific/technological community putting the Schumann Resonances to use? Answered

Apparently the whole earth has electromagnetic resonances, like a big ol' magnetron cavity. Wouldn't that be terribly useful? I can't think of quite how, myself, but the significance feels imminent.

Question by V-Man737 9 years ago  |  last reply 4 years ago

what is science

Science is having knowledge in all and it is connected by technology    technology is useful application of scientific knowledge.  it is slogan !    knowledge is power but most better than imagination.

Topic by rodniactive 8 years ago  |  last reply 8 years ago

How to get rid of moles / warts in quick way?

how do i get rid of art/ mole in easier it homemade or scientific...

Question by pratiksd 7 years ago  |  last reply 2 years ago

Are Science and Engineering skills are required?

First of all, hi everyone, I'm new to the forums and this is my first post so bear with me if my questions are strange! I've been taking glances at the projects in Instructables, and I am really happy to find a site that shared my passion in home science/technology/DIY projects! I am studying Physics (first year) at my city's University (Aristotle University of Thessaloniki, Greece) and I was always fascinated by science, technology and especially computers-electronics. Instructables' projects 'pushed' me to get some basic tools (A 25 W soldering iron, a soldering pump, a pair of 'helping hands' with a magnifying glass, screwdrivers, wire cutters, wire strippers, some other basic tools and recently a Dremel 300) and frequently, I've been trying some of the simpler projects. But, since science will be my future profession, I'm not content by just reading instructions and following through...I want to understand the principles behind the instructables (for example, electronics) and even make my own small projects at home. As I said, electronics/electrical engineering projects are kind of my favorite, and I often get frustrated by just blindly following through the instructable, and I ask myself 'how did he think about that' or 'how did he know how to build this circuit' or 'how did he choose his materials'. So, do you really have to be an engineer to plan the more advanced -electronics or not- projects or can anybody get a book/website and learn about those skills? I often get ideas about projects of my own, but I don't know how to choose materials for them...does this skill come from experience or gained by an engineering degree? Is Physics a good enough degree to help me with my projects? And another question that has been around my head for a while: do you actually get pen and paper, lay down designs and scientific formulas-calculations to build a more advanced project? Thank you!

Topic by loxagos_snake 8 years ago  |  last reply 7 years ago

Psychic Abilities: Mumbo Jumbo or Something Else? Scientific Discussion Only Please!

Right first thing: any statements made by me in this forum topic are to my knowledge completly true and un-exagerated. Does anyone here believe that it is possible for someone to be psychic, or have "preminitions of the future"?I for one believe it is entirely possible, or more correctly is true.For I more or less have had preminitions of the future. Do't believe me? I will now describe one of the acourences and attempt to point out how it wasn't entirely a dreamRight, I'm in 4-H and one of the competions we have is called Food Show. All it is is that you have an interview with the judges and are asked questions about food and nutrition and the food item you have made.Anyways, about a month prior to one of these Food Shows, I woke up after having a dream about it. Since I already had had helpful preminitions before, I quickley jotted down everthing. Any ways I dreamed about my interview and the judges, I dreamed that I walked down a hall, to a room I've never seen in my life, yet was exactly how it looked when I saw it for real. I then proceded with my interview, who I could distinctly see, yet I'd never met or seen them before. I had my interview (boring details of my questions and answers left out), and I walked back out. I woke up at that moment, for I had sleep-walked into my doorframe (this is the only preminision that I woke up from, all the others I would only fully remember until briefly before the event was ging to happen), and I quickley jotted down the details. So ayway fast forward to the day of the contest, I see for the first time one of the judges, who I had never seen before yet she was the exact same one from the dream. Anyways a little later I found myself heading down the same hall to the same never-before-seen-yet-recognised room and the same judges one who I never had seen yet recognised, and the one I had seen previously. We proceded with the interview, that went exactly as I dreamed, I even cracked a joke that I woud never have done if I hadn't "foretold" it's success. I wound up winning, so I must have done a good job. Has anyone esle had similar experiences? Are there any scientific explanations? Your input is greatly desired.I AM NOT MAKING THIS STUFF UP

Topic by KentsOkay 11 years ago  |  last reply 5 years ago


I know it sounds fascinating but do u guys think there is a possibility of a different set of laws that govern the universe.Spells,Witchcraft and Sorcery have been amond us and are also prevalent now.Are any of these true??Is there A scientific explanation??

Topic by WEBRANGER 9 years ago  |  last reply 3 years ago

Book Review Opinion, if anyone has read "The Varieties of Scientific Experience" by Carl Sagan

Although I put this in the Science category, I am also looking for opinion. Anyone that has read Carl's book; The Varieties of Scientific Experience I would like to hear from. Or if you have a general opinion concerning Mr. Sagan's books, also. I just picked up this book yesterday at an outlet, and started reading it today. Already, only up to page 36, I am liking what I am reading.

Topic by Goodhart 9 years ago  |  last reply 9 years ago



Topic by Lateral Thinker 9 years ago

How can i be more proficient in traditional karate?

Do you know of any training methods that can help me increase flexibility speed and power? Any scientifically more efficient ways to train?

Question by 10 years ago  |  last reply 10 years ago

how elemtal compositon is find in a compound or matter?

I want to know how the elemental composition is decided ie how it is decided that H2so4 is made up of hydrogen ,sulphur and oxygen and before spectroscopy how it is decided in old day when no scientific instument are available

Question by mihir.sahu.355 3 years ago  |  last reply 3 years ago

What's the best way to fold a burrito?

I mean, I already KNOW the answer. It's the side-bottom-side fold. I guess the question is WHY is it better than the bottom-side-side fold? Can someone give me a scientific explanation?

Question by klee27x 9 years ago  |  last reply 9 years ago

Carl Zimmer's Science Tattoo Emporium

Underneath their sober lab coats and flannel shirts, scientists hide images of their scientific passions.Writer Carl Zimmer wondered aloud whether many scientists have tattoos that reflect their science or other geeky interests, and the response was an emphatic yes. He's posting the photos and stories of scientific ink up at the Science Tattoo Emporium. Today's is a gorgeous backpiece of the tree of life, belonging to a grad student in zoology at the University of Melbourne.Of course, now I'm curious -- do any of you makers, builders, tinkerers, and crafters have geeky tattoos? If not, what would your tattoo be? Carl Zimmer writes a fascinating science blog called The Loom along with other science journalism.

Topic by reno_dakota 11 years ago  |  last reply 7 years ago

Connect ESP8285 Development Board IOT to temperature, pH and DO probes

Instructable had this great article on how to connect several sensors from Atlas Scientific to the Arduino MEGA 2560 board. See here:How-to-Make-a-Data-Logger-for-the-Temperature-PH-a/Unfortunately the 2560 does not have Wifi.I was wondering whether there is a similar write-up on connecting the same Atlas Scientific temp-, DO- and pH probes to the new ESP8285 IOT board, which does have Wifi. See here for detail:ESP8285 IOT BoardIt would be a great day if I can get some instructions and help on how-to as this is my first project of this nature. :)

Question by achaninau 1 year ago  |  last reply 1 year ago

trying to hide a programmable calculator inside a regular school calculator to use in tests?

hi all I am not allowed to use a programmable calculator in exams, however we are allowed a scientific calculator. is there any way to convert one or mod a programmable calculator to look like a regular school calculator? cheers

Question by thatfamousguy 7 years ago  |  last reply 7 years ago

What does the word dike really mean (as in, not a derogatory term for lesbians, and not the scientific term either..)?? Answered

I was reading The Lord of The Rings, The Fellowship of The Ring (yeh, the first one).. Cause I've seen the movies, and have had the books for years, yet haven't read them. So I was reading, and the book came to describing the town Bree.. & I saw "there was a deep dike, with a thick hedge on the inner side." Anyone know what dike means (sorry, I can't help but feel awkward when saying/typing that word -_--)..? I just assumed it was some kind've trench, but is that correct? And I know there's something to do with Lava/Volcanoes/etc.. But I don't really think that would apply in this circumstance..

Question by Imgerome 10 years ago  |  last reply 10 years ago

Field of view of a lens?

Hunting through the attic I found an old 35mm projector. I wondered what governs the field of view of the lens system - for this projector it is obviously about the size of a 35 mm slide but for my video projector it must be considerable bigger although the lens looks similar. (I know hat isn't a very scientific judgement!)

Question by rickharris 6 years ago  |  last reply 6 years ago

An idle thought on career diversification.

As you may know, I teach Science.You may have noticed that I occasionally venture an opinion on science-related topics.You may also have noticed that bad science, and the acceptance of anti-science tend to get on my nerves.Part of the problem, of course, is the meeja - the majority of journalists have little or no science training, so they focus on the dramatic sound-bites when reporting stuff. Heck, these days the majority of journalists aren't even journalists - they're bloggers.After the massive fuss I had to put up with at school over the LHC (destroying the world by sucking it into an exploding black hole then turning time backwards), I tried to find out where the kids got their panicky ideas from, and it turned out to be the tabloid press (the Star and the Sun, for UK readers).Now, I could wait until the papers publish their bad headlines and write an annoyed letter, or I could be pro-active.Do any of you guys think there is any mileage in setting myself up as a consulting service to the scientifically-illiterate news media?I thought, maybe, offering "expert opinions" on scientific events to newspapers that don't have scientists on staff, or maybe a translation service, turning scientific papers and press-releases into something journalists can cope with.Comments?EDITI have emailed the main local newspapers, plus the BBC.Let's see...

Topic by Kiteman 10 years ago  |  last reply 10 years ago

Burning barrel in the pool

Questions for you scientific types. Would this work: I have a 3,000 gallon inground pool and no heater. If I took a barrel, stuck it in the shallow end just a half inch above being totally submerged, and lit a fire inside it it would it work to heat the water around it and eventually heat up the pool?

Topic by jakeotron 10 years ago  |  last reply 10 years ago

What is a good science fair project? Answered

In school we have science fair and i need to come up with a project. I like mechanical things not growing plants or anything like that. one year i did centrifugal force then another on the otto cycle but never got in :(...i have to use the scientific method, i was thinking something along the lines of how different nitro rc fuel percentages effect nitro engine preformance but thats kinda obvious and lame. i was also thinking of making a stirling engine but dont know how to fit the scientific method into it plus i never got any of my engines to work :( Just let me know if you guys have any good projects i can do? like i said im mechanical but i dont really have any tools to make stuff.

Question by Acepilot42 8 years ago  |  last reply 8 years ago

Dangerman Casting

Discovery and Objective Productions UK are seeking a HOST with a strong science background (B.A. minimum) for DANGERMAN, a documentary-style reality series that replicates extraordinary stunts performed by daredevils, stuntmen and showmen and explains the scientific principles that make the most amazing feats possible. So what do you say? Anyone in the mood for some DANGER!?!

Topic by Tetranitrate 11 years ago  |  last reply 11 years ago

New Antibiotics.

Antibiotic resistance is becoming a real problem, and I figured that the crafty and scientific community could help. I started this petition on the white house website. Note: This is at no benefit to me, I am just trying to bring awareness to this issue. 

Topic by airsofter1 5 years ago  |  last reply 5 years ago

Instructables mentioned in Tree Lobsters! today

I read a few webcomics here and there.  One of my favorites is Tree Lobsters!, a four panel comic about arboreal crustaceans with a scientific and skeptical bent.   I was pleased this morning after I read today's comic, when I tapped the "Secret Message" button at the bottom of the page and found a brief but amusing reference to the site we all know and love.

Topic by depotdevoid 7 years ago  |  last reply 7 years ago

Adidas golf clothes comfortable and fashionable

Athletic clothing brings new collection of adidas golf clothing at discount rates, which are designed to maximize your comfortable and to show off your style, adidas golf clothing created around scientific evidence of what promotes improved athletic performance. You will find a huge selection of products from adidas golf clothing right here.

Topic by hannahthomes46 6 years ago

Nova's Elegant Universe

Nova's Elegant Universe is a very well made scientific documentary about string theory. If any of you have been interested in The Fabric of the Cosmos by Brian Greene but don't have a chance to sit down and read something. This is for you.String theory is trying to unify our understanding of everything through one equation, if you think that is interesting then: Click here to watch the entire series // More Brian Green at TED here \\

Topic by lamedust 11 years ago  |  last reply 11 years ago

FREE Science Stuff!

Free vials and closure sample by filling out a simple form. Mine came in today ,cool glass and plastic vial assortment  best of all Free!;=WMI-Web%20MS%20Internal Just fill out the form and receive the Free Scientific bounty that awaits! Put in my request  10/31/12 received today 11/19/12.

Topic by Lucky7x7 6 years ago  |  last reply 3 years ago

A forum for what didn't work? Answered

I'm assuming most of the community goes about life rather scientifically.... we have an idea that maybe should work - and we try it.  Sometimes things go well and become ibles. Sometimes they fail, and we learn something. After using a few power words and cleaning up the mess, we can (hopefully) laugh at ourselves or at least provide a word to the wise for others. So Is there a forum here in which to share these educational moments?

Question by mole1 4 years ago  |  last reply 4 years ago