From wooden dowels and rubber bands.
This complicated chemical process is a far cry from smartphone photography.
Project tiny specimens onto the walls of your own home.
Give it to a home-improvement enthusiast with a mouth full of nails
Using cheap materials, you can hear music through bone conduction
You should check your local laws and regulations before firing off your own
Its LEDs will flash a symbol of affection with your every heartbeat
Quaint and awesome
The agency may also open up parts of the spectrum for private experimentation
To activate it, just walk by
Build a device that lets you charge batteries for your cellphone or music player just by taking a stroll
Give your cybernetic “toaster” a new set of eyes
Give your desk a little retro-tech vibe while cleaning out the old office junk drawer
Build your own Arduino demo board
Attach a tiny signaling device to things you often misplace, and you'll be able to recover them in a snap
Flash a light on this robot and it gets very agitated.
Turn a regular flashlight into a powerful LED torch that will run for years
How to send a folded flyer screaming 100 feet or more: Just add a motor-and a lot of juice
Add a camera to your scope for cheap astrophotography
Follow along with these in-depth steps to set up a solar-powered outdoor Wi-Fi access point
Turn a backpack into a portable, solar-powered Wi-Fi hotspot, and share a high-speed connection anywhere