# Search for intersection in Topics

### Intersection Problem (Riding a Bike)

So here's my problem: I ride my bike to school everyday, but there is one intersection that I can not figure out how to ride through safely. I drew a picture of the intersection down below. The blue and green lines are cars, and the red line is the route that I usually take. If anyone could tell my where to ride , it would be greatly appreciated. (Click the little "i" in the corner of the image to view it at a higher resolution)

Topic by ItsTheHobbs    |  last reply

Certain spots seem more problematic in snow  n ice.  Particularly hills, intersections...  What if the pavement was textured for traction in those places?

Topic by Toga_Dan    |  last reply

### Does anyone know where to find instructions for the Five Intersecting Tetrahedra origami model?

My computer won't load video, so I need some directions.

### Could you convert noise pollution into energy? Answered

Since Microphones turn sound energy into electrical energy, you think you could generate any usable amount of electricity from an array of dynamic or piezo microphones near a noisy intersection or metropolitan area?

Question by action_owl    |  last reply

### Flash Mob Dance Party in Shibuya

Shibuya is an awesome neighborhood in Japan with loads of shops and cafes to hang out in. It is also home to the Busiest Intersection in the World. That's exactly where this video takes place. Fun to see the sudden-choreographed-dance-party-in-the-street pop up in different places.

Topic by fungus amungus    |  last reply

### Can light collide with light? Answered

If two electromagnetic waves intersect, what happens? Is light 'immaterial' or without density, is light weightless? The photograph below is not related to this question in any way.

Question by nepheron    |  last reply

### Does the Periodic Table Of LED's schematic work?

Im not going to elaborate on my project, I dont want anyone to steal it. Basically, its a LED Array in the shape of the periodic table. The small black circles are 4 way connections of all wires, if they intersect with no circle, they do not connect.

Question by PKTraceur    |  last reply

### Traffic signal controller - do you recognize this device?

Do you recognize this device? Is it a traffic signal controller? I saw this guy standing at a busy intersection, and it appeared he was controlled the traffic signals. Unfortunately, I didn't get a chance to talk with him, but I did get a picture to investigate later. Do you recognize the device?

Topic by ewilhelm    |  last reply

### Anyone have a pattern/instructable for a kids wooden balance bike? Answered

I'd love to make my little guy a wooden balance bike, something like the Skuut (http://www.skuut.com/default.aspx). But I'm a bit flummoxed as to how the front steering part works (where the handlebars intersect with the front fork). Anyone have ideas?

Question by sallycinnamon    |  last reply

### while making a tent like shelter systems how to decide the position joints in space where the two poles will intersect?

I have several other questions in mind... 1. since the PVC conduits are bent during the process of building tents, some bending stresses will be induced..how do we ensure that the structure won't fail? 2. Can someone suggest some modification in shelter systems dome design to make it more stable but not adding much complexity and not adding much assembly time? 3.Can someone give a construction plan of a dome similar to shelter systems, different pipe sizes and position of joints??

Question by kushal22    |  last reply

### need help with understanding an instructable's schematic

I'm not very good at understanding schematics I guess, and am trying to understand the schematic at https://www.instructables.com/image/FT6P10TGTTUHASZ/Assembly.jpg . I've created a rough translation of it at https://www.instructables.com/files/deriv/FQV/10DS/GU2QYOY1/FQV10DSGU2QYOY1.MEDIUM.jpg . Can someone fill in the polarities at the question mark locations and confirm that my interpretation of the wiring intersections is correct please? I'd appreciate any help available. Thanks!?

Question by aeneas shrike    |  last reply

### Crows Use Vending Machines

Check out this guy who's training crows to use vending machines. Crows are smart, and very good at cause and effect. They're already known for dropping nuts at intersections so cars will do the hard work of cracking them open; it's a small step from this to world domination. There's a rather wobbly video of the crows going nuts for his machine while the seagulls waddle about ignoring it.Via Mark's liveblogging of TED talks on BoingBoing.

Topic by canida    |  last reply

### The ultimate urban downhill board

I was wondering if its possible to mount some mountain board brakes to some mountainboard trucks with normal wheels. Hell, you could even use some randall trucks. The reason I'm bringing this up is that in urban conditions you may have a rally nice hill.... that leads right into an intersection. I would love to add these to my latest bomber. Also, can you mount normal wheels on 15" mountain board trucks?Let me know what you guys think.-Butt

Topic by Kobl    |  last reply

### Need help making this bunk bed a reality!

So, I want to do this project with my kids. They’re 5 and 7, and I want to start early in educating them that all this stuff that surrounds them is made by someone, and that someone can be them...Also, they want a bunk bed. :)Take a look at the photo...Can anyone help me turn this picture into a design? I’m pretty handy, but I’d love it if someone with the carpentry-and-CAD skill intersection could take a crack at turning this pic into something I can use...Best,Dutch

Topic by DutchFlyer    |  last reply

### How to stretch holes in a steel frame?

I ran into a glitch in rehabing an old park bench.  The wooden slats were rotted out, so I'm saving the wrought iron end frames and fitting them with new poplar slats.  I included a mid-project picture below of one of the end frames. I don't know if you can notice from the picture, the holes in the frame for mounting the slats were not in a straight line, but rather haphazardly.  So each board needs to be custom-drilled to match the mounting holes in the frames. Problem is, I originally measured the distance between the bolts on one of the old slats and used that measurement to drill ALL the new (expensive) hardwood boards.  I had made the careless assumption that the holes in the frames would be in a straight line. Never assume good workmanship! After drilling the slats, I applied about 5 coats of clear urethane spar varnish.  The new slats look supreme, and I don't want to zorkk them up by drilling a second hole in each board to match the stupid end frames.  So the only way out of the quagmire I can see is to drill the frame to match the boards.  OK! Problem is, most of the new holes in the frames would intersect the old holes, and I know that drilling an intersecting hole is problematic, especially in 3/16" steel.  So I need advice on how to stretch holes in steel into an oval shape.  I'm thinking some sort of router bit, or a grinding bit that I could use with a hand drill. Suggestions?  Thanks.

Question by LesB    |  last reply

### What's another name for a rotary pneumatic indexing valve?

I am trying to find or create an air indexing or selection valve that has one line going in and several (6 to 12) coming out. I can imagine how to create such a thing: A valve disk that rotates in a body with 6 to 12 outlet fittings on the valve housing. The disk has one hole cut radially and one cut axially intersecting it at the center. Install in the valve body, spin it around with the valve stem, and there you go. Agitate away!The thing is, I'll bet these already exist if I could find them. Can anyone tell me what this thing-a-ma-bob is called? Or who might make them?

Question by cmblocker95    |  last reply

### Did 16 year old boy do 75kmh (46.6mph) on pedal bike?

Www.stuff.co.nz/oddstuff/3230442/Mum-disputes-police-claims-son-rode-bike-75kmh The  75kmh ===46.6mph A Palmerston North mother has labelled police claims that her [16 year old] son reached speeds of 75kmh on his bicycle as "bizarre", saying it was impossible for him to go that fast. Summerhill Dr, Palmerston North, Manawatu-wanganui 4410, New Zealand maps.google.com/maps  The image of the jet powered bike, and description thereof is from Popular Science Magazine December 1947. The cartoon is curtsy Kapi-Mana News NZ  Behind the Google street view is a major Y intersection including a overpass

Topic by Lateral Thinker    |  last reply

### High-Tech Surfboard Made from Cardboard

Instead of the traditional methods, this surfboard is based on a core that's made up of nearly 400 pieces of cut cardboard that intersects and is then coated with fiberglass and resin. So far it's only a one-off, but more will surely be made.When it came time to replace his old surfboard, Mike Sheldrake decided to build his own. But the former Web programmer didn't have the sculpting skills to carve one out of foam the way professional builders do. So he used 3-D modeling software to design a snap-together deck that's as sturdy as a conventional model and performs just as well, made from the cheapest material he could find: cardboard. link

Topic by fungus amungus    |  last reply

### Soldering Copper Round Bar

I plan on making a backdrop (pictured) out of copper. I have a little bit of experience soldering copper pipe. I have an idea of how to build the backdrop but would appreciate some feedback/tips.Dimensions:- 5' W x 7' H x 3' DMaterials: - Diagonal members: 0.1875" round bar- Circular votive holders: 0.125" round bar- Rectangular border, kickers, and base: 1/4" x 1" rectangular barI'm thinking that I will solder the diagonal members at each intersection and where the ends meet the rectangular bar frame. The base will be a 3' rectangular bar on the left and on the right. There will be a kicker on each side, connected to the base and about halfway up the vertical members of the frame.Does this seem feasible? Will the structure be stable? How can I form the circular votive holders?

Question by sjung510    |  last reply

### Instructables in the Institute for the Future's Future of Making Map

I helped The Institute for the Future, an independent, nonprofit research group with nearly 40 years of forecasting experience, create their Future of Making Map, which has just been published and mentions Instructables:Two future forces, one mostly social, one mostly technological, are intersecting to transform how goods, services, and experiences--the "stuff" of our world--will be designed, manufactured, and distributed over the next decade. An emerging do-it-yourself culture of "makers" is boldly voiding warranties to tweak, hack, and customize the products they buy. And what they can't purchase, they build from scratch. Meanwhile, flexible manufacturing technologies on the horizon will change fabrication from massive and centralized to lightweight and ad hoc. These trends sit atop a platform of grassroots economics--new market structures developing online that embody a shift from stores and sales to communities and connections.Check out the full Future of Making Map here.

Topic by ewilhelm    |  last reply

### Electronics Plastic housing

I have a plastic housing for a VCR with some molded-in markings on the inside. *There is a circle with an arrow inside and two numbers outside. "1207" & "1208" The arrow is pointing to "1207" *There is a circle with an arrow inside and the numbers 0-9 on the outside. The arrow is pointing to "4" *There is a circle with an arrow inside and the numbers 0-3 on the outside. The arrow is pointing to "0" *There is a circle with an arrow inside and the letters A-H on the outside. The arrow is pointing to "B" *There are also two charts that has letters on the left and what looks like names of pigment colors on the right column. Some of the right side fields are blank. *There is another chart with "00", "99", and "98" on the y-axis and the numbers 1-9, 0, and the letters "N" and "D" on the x-axis. There are two markings - one at the intersection of "99" and "1" and another at "99" and "2". Does anybody know what these markings mean? I've seen similar markings on other bits of plastic electronic housing. I imagine that they explain the material that the housing is made of , but what do they mean? Anybody know? Have any ideas?

Topic by 8bit    |  last reply

### Directions to Instructables HQ / Squid Labs

Topic by canida    |  last reply

### Ever been hit?

By a car? Besides when I've managed to run over myself, all of the times that I've been hit have been at intersections, obeying the lights. I got hit by a 50cc scooter once, too. That was less painful than hilarious. I think I got hurt less than the gal on the scooter. I had to help her pick it up and get it started again...I cross busy 4-lane streets in the middle of the block, rather than the light, for precisely that reason. Every time I've tried crossing Federal at the light, I've been hit or nearly hit by some cholo in a junker of a lowrider. Crossing the same street in the middle of the block, I've only had once close call, and that was my English teacher trying to be funny and just buzzing me.One of my friends got laid out in the crosswalk by someone who jumped the light a few miles from our school. She was in a bad way for a while, with multiple compound fractures.How about you? Ever been hit? How do you handle traffic and crossing?

Topic by Rishnai    |  last reply

### What's the best way to cut these reinforced rub/plastic speed bumps to increase the distance betw their 2 parts 4 bikes?

In this city it is a political chore to get speed bumps put in, particularly in the alleys.  For the most part, bicyclists just bu-bump over them; but, when u are a transportation cyclist like me (often heavily loaded) and u must negotiate these suckers daily or hourly, u begin 2 think that a few more inches between their two halves could make a big difference in time, money and wear. Note: some of them have been installed in an arcane manner to, for example, accomodate intersecting rainwater channels (which are cut into the pavement).  All of the above problems could often be circumvented by simply widening the space between the two halves of these devices by a few inches---like three. Slightly wider space between the two halves, called the "crotch" by some, would make it easy to ride down the alley and avoid both pinch flats and bu-bumping, bu-bumping, bu-bumping. P.S. An full swing from a sharp axe won't work....

Question by Rapel Teetaw    |  last reply

I need help with this statics question, because it seems easy enough but I know I am not doing something correctly.  Look at the picture and use it along with the question, which says; Four forces and a couple act on the beam. The vector sum of the forces is zero, and the sum of the moments about the left end of the beam is zero. What are the forces Ax, Ay, and B? Ax is of no importance, it can be anything because it does not affect the moment because it line of action intersects the point of rotation, so i don't care about it.  So it would seem to me that the 800N force multiplied by the 4m, gives 3200Nm plus the 200Nm from the couple makes 3400Nm, and since it has to be counteracted by B, it would be divided by 7m which equals 485.7Nm.  But what is Ay?  It seems to me it can be anything, as long as B is adjusted accordingly to account for it, but I think I need an actual value. Is Ay suppose to be part of the couple, because if it is it would have a value of 25N which would factor into the 800N because that force lies on the same place where the other portion of the couple would be.  So would 25N be Ay because it says in the question that 4 forces (800N, Ax, Ay, B) AND A COUPLE, which it makes me think that Ay isn't part of the couple?

Question by Electric Spectre1    |  last reply

### Food-safe permanent repair (re-join them) of 2 tines of metal (stainless steel?) whisk/beater of electric stand-mixer?

I have a 34 year old stand mixer (Sunbeam Mixmaster) which uses 2 separate beaters (whisks) to mix ingredients in a bowl while it rotates. The beaters each have 4 tines which are joined with a rivet where they intersect at the tip of the beater/whisk (see photos. The broken beater is the one on the right).  On one of the beaters two of the tines have come apart (broken) at the rivet so I can't re-rivet to repair.  I believe the metal is steel (maybe stainless although there is some rust on the metal - they ARE 34 years old).  What can I do to permanently re-attach the broken tines at the tip, that is food-safe and doesn't add bulk to that spot? (the beaters interlock with each other while rotating so they have to be the same height or else they won't interlock correctly while spinning).  The mixer works fine otherwise and I am reluctant to buy a new one because the comparable ones that are available are built much more cheaply than this one was (very flimsy, lots of plastic instead of solid metal body) and I don't want to buy an expensive, large and bulky Kitchenaid-type mixer which is more than I need for the amount of baking that I do.  Thanks for any suggestions!

Question by irmab    |  last reply

### Two Hands Two Legs and lots of walking in SF

Topic by lamedust    |  last reply

### Using Autodesk Fusion 360 or other package to make Lids and other form fitting parts?

First off, thanks for all the great posts and Instructables, I hope to be able to add to the growing collection sometime soon with a few projects I need to document.   Recently I have been trying to figure out a good way to create form fitting shapes with decent tolerances for  PLA printing.  I am using Autodesk Fusion and Blender using Boolean CGI operations, specifically the  Cut / Difference option. to create a appropriate sized cap.  If you have a peek at the attached image, the top part (red)  was used as a tool to cut out a matching body from a smaller cylinder (blue).  In the real world If these are printed, the shape would never fit together and if you did, you could never remove them.   What I would like to do is alter the bottom half to shrink it's surfaces inward about 0.25mm to allow for the expanding of materials. Every time I've inquired about this on some other forums, the first response Is  'Just use resize' and make the bottom half larger.'  Great idea, but there are a problems.  The inner plate/cylinder and radius walls expand to be too large The height changes, leaving a gap between the two surfaces Any suggestions would be great. I believe there is a path using Differences / Intersect and subtracting that, but I've been failing to find a solution to it.  I have included the Example top as an STL file.  Thanks for any suggestions.  And No this is not for a school project. Just a hobbyist looking to understand CAD.

Topic by dewclaws

### GUI game help needed

Here is my question, its a technical problem so am trying to simplify it as much as possible. So what I am trying to do might sound a bit weird. Here is image that is needed for following explanation. http://tinyurl.com/p5g88mu I want to use GUI to create a 2D game with grid of points. Now in that grid, I have some existing data point.( light green) and rest are missing ( not shown but one of the example missing point is shown in orange). Now I want to fill up all the missing data points by using a few light green points. Default case is the 4 light green points shown by arrows at the intersection of the arrows and the red and blue lines. Lets say I select a missing data point it should turn orange or red and all the light green data points corresponding to that should become dark green. Now I should be able to toggle between light and dark green data points and customize a set for each missing data point. I want to do this for all missing data points one by one. Lets say that this is the game I want to build in python GUI. I wanted to ask if anyone can help me get started. I use python a lot but never did any GUI. I looked up web GUI examples they all seem quite simplistic and no where as complex. Python is what I am comfortable with but if this can be done using some other language I am willing to try. Any help you can give is highly appreciated.

Question by Agreevedlama

### Office blind corner traffic light. Answered

I have this idea for a little project/gizmo and I don't really know where to begin. my office is at an intersection that people have a tendency to run into each other at. What I'd like is a simple little circuit that will have some sort of motion/proximity sensors, two, one each looking down one side of this corner. Two LEDs each look down one of the two sides of the corner. The idea would be that if both sensors detect motion (within 10-15feet of the corner) the led would light or blink for a second or two. So if one person is approaching the corner nothing happens, but if people are approaching the corner from both sides the LED would alert them so they won't run into each other. Ideally I'd like this to be powered by a small photo voltaic. I'm thinking that I could have some cap that charges from the PV, and discharges into the circuit a few times a second. This way it could just be hung there at the corner and forgotten about. Ideas??? Update: While a mirror would seem like the most obvious solution the way the offices are arranged at my corner there isn't really a place to hang a mirror. I've even stuck a car blind spot mirror on the small space between two of the office doors across the way from my door. That way at least I can check for traffic when I step outside my office.  This is kind of an idea splinter and I need to make it so I can get it out of my head. (I hope I'm not the only one who gets mind splinters. Like a song stuck in your head it is an idea that you just have see realized or it will just sit there in your mind forever.)

Question by FriedGeek    |  last reply

### Live in the Bay Area? Interactive art this weekend!

Alchemy is an event intended to bring all types of art forms together and make them accessible and fun to interact with and add your creative mark to - come play and design and craft and art it up with us! It's at -- CELLspace in San Francisco -- (2050 Bryant, @ 18th St, in the Mission) This Saturday -- April 26th -- from 9pm-2am. It's \$15 and there will be a full bar available. The shows and stations that it will include: - a fashion show "Styles of Magic" by Missing Piece @ 10pm - a magic show "Phantoccino" by Keith Boudreau, showing 4 times over the night - an all-local Art Gallery curated by Will Chase Arts, half of which is priced under \$100 - Alchemical Afforestation, an interactive steel sculpture by Shira Loa ---> you make the bark of the tree! - Digicrylic Mash-Up by Dangermarc and Ron Goldin ---> you draw on one side, they on another! - PyroCardium, a heartbeat-powered candelabra by False Profit Labs ---> try the stethoscope on! - Web of (de)Construction, a live textile piece by Medium Reality ---> become entangled in this web! - Identity Tapestry by Mary Corey March ---> see how your line of self lines up with others! - Flame Tree Building Workshop by False Profit Labs ---> make a fire sculpture! - Phoenix Aviary, a reactive video installation ---> dance and move, and see the flame-tastic results! - Writing Photos, an intersection of writing and photography ---> tell us a story that you see in the picture! - Altered Paintings, reworking thrift-store finds ---> that mountain scene needs an anime monster, don't you think? - Interactive Lights & Magnets... Photo Booth... Lego Robots... Origami... Knitting and more! check out www.false-profit.com/alchemy Hope to see you there! Here are some pictures from our last Flame Tree Building worskhop. Reply to this post if you are interested in signing up to learn how to build these propane flame effects.

Topic by brettlevine    |  last reply

### i had this really weird dream with the person i like? Answered

Just to start it off, it was a really fudged up dream, and I'm not sure what it's supposed to mean. I've been looking around and i think i know dreams are like your subconscience regurgitating everything you see, hear, and well just everything but this is just...something else. So basically the dream starts of with me walking out of the subway and for some weird reason I feel that some guy, lets call him bob for now, is following me, few minutes later when i walk out of the road i see the guy thats following me (like in third person) so i start running, then I see the girl i like randomly in the streets and I for some reason I brought her with me cause we were in danger or something. Then out of no where bob decides to randomly pop out in front of me so we ran up this construction building. Then again out of nowhere, i randomly have this master person protecting me and hes trying to shoot bob but bob shot him and he was like "carry on it would be safer for you" so we went down the construction site building thingy, and theres some weird ritual that makes some random other guy, lets call him ben, control your mind. Then the girl like contributed in the dance ritual thingy and i was like "noo don't we need to go" then bob comes back so i tried to bring her with me but she slapped me (lol) so i ran and ended up in the middle of an intersection and randomly 4 bobs popped out of nowhere surrounding me and they were like getting closer then i woke up. i had this exact dream 3 times in one night and woke up 3 times as well, well i did sleep for a really long time (11 hours) if that has anything to do with it. So I am just really lost on what this means, if it even means anything..

Question by thebrownpancake    |  last reply

### Giant Robot Architecture Talk by Greg Lynn in Berkeley

Here is an interesting talk from the Art, Technology, and Culture Colloquium of the Berkeley Center for New Media...Giant Robot ArchitectureGreg Lynn, UCLA & Angewandte, ViennaMonday, Feb 4, 7:30-9:00pm- Note Special Location: Berkeley Art Museum Theater- Enter on Dwight Ave: http://bampfa.berkeley.edu/visit/visitor- Lecture is free and open to the publicAbstractRobots. In my office, my staff keeps asking for more new machines, and every time I get a new machine, I fire two or three people. By extrapolation, in the next few years I will be sitting in an office by myself with a bunch of robots. We have is a very large CNC (computer numerically controlled) cutting machine, a laser cutter, a 3d printer, and soon we will have a robotic articulated arm. All of these things let us do studies of models, which are very important to architects, but what they also let us do is learn machine language. We spend more and more time talking to machines; speaking their language. It is very easy for us to go to any country that has an automobile industry or an aircraft industry and give their machines instructions and do things with these large machines at an architectural scale that is very perfunctory and affordable. The spread of machine language and programming is more significant than the Anglicization of the world. Learning to talk to robots is very important to my field of design.Speaker BioGreg Lynn is a leading pioneer at the intersection of computing, design, and architecture. His architectural designs have been exhibited in both architecture and art museums including the 2000 Venice Biennale of Architecture where he represented the United States in the American Pavilion. His work is in the permanent collections of CCA, SFMoMA, and MoMA and has been exhibited at the Pompidou, Beyeler, Cooper Hewitt, MAK, MoCA, NAI,Carnegie, ICA and Secession museums among others. In addition to his architectural work, his Alessi "Supple"Mocha Cups and his Vitra "Ravioli" Chair are in production and have been inducted into the Museum of Modern Art's Permanent Collection. He received the American Academy of Arts & Letters Architecture Award in 2003. In 2002, he left his position as the Professor of Spatial Conception and Exploration at the ETHZ (Swiss Federal Institute of Technology Zurich) and became an Ordentlicher University Professor at the University of Applied Arts in Vienna.He is studio professor of Architecture at UCLA and the Davenport Visiting Professor at Yale University. Greg Lynn holds degrees in architecture and philosophy and received an Honorary Doctorate degree from the Academy of Fine Arts &Design; in Bratislava. In 2001, Time Magazine named him one of 100 of the most innovative people in the world for the 21st century. In 2005, Forbes Magazine named him one of the ten most influential living architects.http://www.glform.comMore info on the colloquium here.

Topic by noahw

### Technology Makes Cheap Drinking Water from Air

Topic by RT-101    |  last reply

### Autodesk: Art Residency of Generosity

Topic by scottkildall    |  last reply

### I want to Make a HUGE "3D printed" sculpture of a PACHAMAMA DRAGON with a drop fountain in it's eyes and a sensor smoke machine and more.(HOW CAN I DO IT?)

Question by DIAGONALLIS

### Japan Day 1

Topic by Tetranitrate    |  last reply

### Graffiti artists replicate The Matrix on Instructables.com--and win \$15,000 Universal Laser Cutter!

Topic by ewilhelm    |  last reply

### John Cleese's "Letter To America"

Topic by canida    |  last reply

### Open Call: Pier 9 & Market Street Prototyping Festival Keystone Project

Topic by brinstructables

### FAQ: How Do I Search Instructables?

Topic by NachoMahma