Artist Makes Drawing 'Bot Out of Hacked Turntables | Underwire Two ordinary turntables are hacked to make drawings in the compelling art project “Drawing Apparatus.” The drawings produced by the contraption resemble old Spirograph images, and the simple DIY design of the device has an appealing vintage look and feel. Robert Howsare, a printmaking MFA student at Ohio University, explained how he built the device for under $50 in a phone interview with Wired. “The turntables were just the ones I had in my house,” Howsare said. The turntable on the left, as portrayed in the video above, is an old Technics direct drive turntable — not the popular SL-1200 series favored by DJs, but a low-end model Howsare found at a yard sale. The brand or model number of the turntables doesn’t really matter, but a turntable that has a variable pitch control is useful for controlling the size and shape of the drawings. Turntables have been hacked in the past to make drawing robots, zoetropes, and other fanciful devices.
Top 10 Essential DIY Skills That Aren't as Hard as You Think I think it depends on your definition of "maintenance." I wouldn't hesitate to change my own oil or something like that but I wouldn't dream of replacing a radiator myself. That isn't my idea of "maintenance." Sorry you are afraid of doing that stuff, but even a complete engine rebuild is easy to do, and no you don't need "special tools" unless you call things beyond a hammer and screwdriver "special" I can do a front end alignment on a car in my driveway with a tape measure and a couple of carpenters squares along with the wrenches most people would have. Also if you do buy the cheap but special tools you can replace your own tires and balance them better than the "laser computerized" balance machine at the tire place. In fact the only expensive special tools I need are a Crane and engine run stand. Danger? This is why I don't take my cars to the dealer for any routine maintenance. Aside from that, dealers are inconvenient. Those are also the reasons I have seen and more.
UK scientists invent artificial petrol - News Archive Boffins at Rutherford Appleton Laboratory, near Oxford have invented an ‘artificial’ petrol, which costs just 90 pence per gallon and could run in existing cars. Motorists could even be able to drive for 300 to 400 miles before needing to fill up. The breakthrough comes as average UK fuel prices have hit a record high. The new hydrogen-based fuel produces no greenhouse gases and could be available in as little as three years. Professor Stephen Bennington, the project’s lead scientist, said: “In some senses, hydrogen is the perfect fuel. “Our new hydrogen storage materials offer real potential for running cars, planes and other vehicles that currently use hydrocarbons.” How is it made? It says: "Storing hydrogen up to now has required either high-pressure storage cylinders at up to 700 times atmospheric pressure or super-cooled liquids at -253 degree Celsius. The company has a found a low-cost way to trap the hydride compound inside a nano-porous polymer micro bead.
Practical Physics This website is for teachers of physics in schools and colleges. It is a collection of experiments that demonstrate a wide range of physical concepts and processes. Some of the experiments can be used as starting-points for investigations or for enhancement activities. Many have links to carefully selected further reading and all include information and guidance for technicians. Physics is a practical science. Good quality, appropriate physics experiments and investigations are the key to enhanced learning, and clarification and consolidation of theory. We have published a new set of resources to support the teaching of practical science for Key Stages 3-5. 11 Pencil Vs. Camera Images 986 653Share10.7K Born in Abidjan, Ivory Coast and now living in Belgium, Ben Heine is an amazing artist who overlaps hand-drawn works of art with photos to create stunning images. I selected eleven of his Pencil Vs. Camera images from his site, but you should check out all his awesome work if you have time.
Episode 102: Current as a flow of charge Here, you are trying to illustrate the idea of electric charge and its relationship to a flow of current. Summary Demonstration: Spooning charge (15 minutes)Worked example: Calculating numbers of electrons (10 minutes)Demonstration: The shuttling ball (15 minutes)Worked example: Calculating charge per second (10 minutes)Discussion: Defining current, the coulomb (10 minutes)Student questions: On charge and current (30 minutes) Demonstration: Spooning chargeStart by reminding your students of the nature of electric charge. They should be familiar with the concept of charge from pre-16 science course. Use the ‘Spooning Charge’ demonstration to reinforce the idea that charge can be taken from one place to another and does not just disappear. Episode 102-1: Spooning charge (Word, 38 KB) Worked example: Calculating numbers of electronsRemind them that charge is measured in coulombs and tell them that the size of the charge on an electron is a tiny fraction of a coulomb (1.6 × 10-19 C).
Western Philosophy Paper Reefs by Amy Eisenfeld Genser Connecticut-based Amy Eisenfeld Genser creates elaborate reef structures adhered to canvas using rolls of colored paper and acrylic paint. (via design milk)