ScienceA Cold junction In 1798, Jean Charles Athanase Peltier was just 13 years old and although he came from a poorly educated family in rural France, people already were beginning to notice the youngster’s intellectual talents.Build A Peltier Coaster To Keep Your Coffee Warm — Or Cold
ScienceWith no moving parts, this simple energy-recycling generator scavenges waste heat from a candle and turns it into usable electricity.The Amazing Seebeck Generator
SpaceFly an astronaut flag every time the space station passes over your home.Build an Easy ISS Notifier
Health & Bioh... Sunlight is essential for our survival, but too much of a good thing can sometimes be harmful.Build, Hack, and Deploy Detectors to Measure Solar UV Radiation
ScienceIn 1764, scotsman James Watt grew thoughtful as he tinkered with the machinery associated with his job as a steam engine technician.Remaking History: James Watt and the Flyball Governor
Health & Bioh...Capture your bio-experiments with a Raspberry Pi gel imagerDocument Your DNA With A Raspberry Pi Gel Imager
Art & Sculptu...A macrame masterpiece! Celebrate 150 Years Of The Periodic Table By Tying 200,000 Tiny Knots
YarncraftCelebrate 150 years of Mendeleev’s breakthrough periodic table by tying 200,000 tiny knotsMacramé Periodic Table of Elements
Health & Bioh...A friend needed a wheelchair for their French Bulldog at short notice.Custom Canine Wheelchair
Health & Bioh...Build a braille embosser for a fraction of the cost of commercial machinesDIY Braille Embosser
Energy & Sust...Sunlight may be free, but transforming it into usable electricity is not. Build some small-scale solar power by transforming a 25-watt semi-flexible panel into a practical battery charger.Transform a 25-Watt Semi-Flexible Panel into a Practical Battery Charger
SpaceIf you can find the exact layout of stars for a special night, you can make a pretty cool present: a glowing LED model of the night skyLaser Cut a Model of the Sky from a Special Night in Your Life
SpaceLocate the sun on overcast days with this ingenious Viking invention.Use Polarizing Film to Locate the Sun on Overcast Days
Fun & GamesWow your friends with this simple to pull trick. Using the first law of thermodynamics, make it seem like you can magically defy gravity.Explore Lenz’s Law with Gravity-Defying Magnet Tricks
