Audio
Science Friday Initiative

Science Friday: In Battle of the Bulbs, It"s Watts vs. Lumens

9th - 10th
How will energy efficiency standards affect light bulb design?
Audio
Science Friday Initiative

Science Friday: Inventors Design Lamp Powered Entirely by Gravity

9th - 10th
The gravity-powered device uses a weight to generate up to 30 minutes of light as it descends.