HS-PS3-5
Develop and use a model of two objects interacting through electric or magnetic fields to illustrate the forces between objects and the changes in energy of the objects due to the interaction.
- Planets
Glass beads help scientists puzzle out how baby planets grow
Researchers have mimicked the first stages of planet formation in the lab. All they needed were glass beads and a catapult.
- Animals
Analyze This: Electric eels’ zaps are more powerful than a TASER
Shocking! A biologist reached his hand into a fish tank and let an electric eel zap him. It let him measure precisely how strong a current it could unleash to defend itself.
- Computing
Self-designed tattoos are fashionable technology
Researchers have created do-it-yourself temporary tattoos. They’re a fashion-forward way to control electronic devices.
- Physics
Temperature ‘lock’ for new hard drives?
A novel material can alter how easy it is to change data stored on it, based on temperature. One immediate application: more secure hard drives for computing.
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- Tech
Electronic paper turns a page
Changeable ink and battery-powered paper may make textbooks lighter and bring video newspapers into daily use.
