Conceptually, radar is pretty simple: send out a radio wave and time how long it takes to get back via an echo. However, in practice, there are a number of trade-offs to consider. For example, ...

DIY Pulse Laser Pistol Can Decimate Styrofoam and Plastic Built by Patrick Priebe, this Pulse Laser Gun sends out a kW-pulse of infrared coherent light. When the beam is focused, it can blaze through ...

If you were not aware, LEDs can also work in reverse: they deliver tiny amounts of current, in the microamp range, when illuminated. If you look on YouTube you can find several videos of solar panels ...

If you want to get your hands dirty on a semi-evil electronics project, this DIY EMP generator is fun—if not a little dangerous—build to try. It won’t fry much, except at extreme short range, so you ...

I have played with many of the high-power laser pointers over the years from various makers. The pointers are cool to play with because they can melt plastic and burn things, but they don't they don't ...

REDSTONE ARSENAL, Ala. -- A team at the U.S. Army Research, Development and Engineering Center, Aviation and Missile, has recently worked to develop a new dual pulse rocket motor. The Weapons ...