When Is a Moth Like a Hummingbird?
A hawk moth feeds by hovering in front of flowers and slurping nectar through a proboscis, basically a body-length straw.
Geek My Pumpkin
Maniac Pumpkin Carvers Marc and Chris carve hundreds of pumpkins each fall, which go for a few hundred bucks and rarely end up on stoops. They gave us some tips for how to bring our pumpkins to the next level this Halloween.
Spinning Eggs In Space
NASA astronaut Don Pettit did science experiments in Space that interested him–like testing whether raw and hard-boiled eggs spin differently in space (as they do on Earth).
Technology’s Odd Couple Teams Up For Science
Musician will.i.am and inventor Dean Kamen are working together to get kids interested in robotics.
Tending Crops On A Brooklyn Rooftop
A rooftop farm in Brooklyn grows vegetables and doubles as a green roof, insulating the warehouse below.
Creating Reservoirs Under Roads and Parking Lots
Porous pavement allows water to pass down to the water table, rather than run off into storm drains.
Desktop Diaries: Michio Kaku
Theoretical physicist and futurist Michio Kaku takes us on a tour of his office, where he writes his bestsellers and records his radio shows.
Magnified Sun Burns
At the right angle, a magnifying glass will concentrate sunshine into a burning hot circle.
Make a Speaker
In this activity, students will learn how an electromagnet works by making a simple one. Using this knowledge, students will design a diagram to make a working speaker using household materials. Then students will follow instructions on one method of making a speaker, and test their own designs to compare results.
The Origin Of The Word ‘Robot’
‘Robot’ was the brainchild of the Czech playwright Karel Čapek, who introduced it in a 1920 play.