Speeding, do you really save any time when you go a few miles over the posted speed limits on the highways. The answer will surprise you when you look at it mathematically unless you are driving a lot further than 100...
This is part 5 of a 6 part hands-on unit on inventions and simple machines. Watch static electricity lift hair and separate salt and pepper, build and test circuits and switches using household materials, play an...
This is part 6 of a 6 part hands-on unit on inventions and simple machines. Work in groups to devise a confetti launcher and a Rube Goldberg machine that makes the simple task of squirting toothpaste onto a toothbrush...
This is part 2 of a 2 part hands-on unit study on bridges. Create and act out cantilever, suspension, & cable-stayed bridges, compete in a bridge-building contest, and more! These lessons are geared toward 4th-5th...
Speed can be measured in many different ways and the instruments used to measure speed vary with the job.
Power generation from waves could be boosted by using the rocking motion of waves rather than just the up an down motion. Here's how it can be done.
Is your traditional meter equipped with a pico-ampere measuring range? Probably not, the proposed circuit facilitates lowest ranges of current measurement yet does not cost much to build.
The Rube Goldberg machine can be a source of entertainment and educational tool. It has been used as visual medium in popular culture and as a means to encourage critical thinking among students.
How to weigh a car without conventional weighing equipment or lifting gear, using only a steel tape measure and a portable tyre pressure gauge. A fun article, but the physics is sound!
Many factors go into building a sturdy, safe suspension bridge. Most of today's best designs came out the catastrophic failurs of past suspension bridges, like that of the Tacoma Narrows Bridge in Washington State.
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