Archimedes and His Wonderful Discoveries
by Arthur Jonas (Illustrated by Aliki)
This delightful book, originally published in 1963,
explores specific gravity, levers and other simple machines, balance and center of gravity,
astronomy, large numbers and more. Aliki's whimsical illustrations make this an enjoyable
The Museum of
"This museum is a celebration of fascinating devices that don't
work. It houses diverse examples of the perverse genius of inventors who refused to let their
thinking be intimidated by the laws of nature, remaining optimistic in the face of repeated
failures." Includes the physical principles of unworkable devices.
award-winning interactive tour of quarks, neutrinos, antimatter, extra dimensions, dark matter,
accelerators and particle detectors." Cool site.
The Physics Behind Four Amazing
Ever wonder how people walk on broken glass or lie on a bed of nails?
This article explains the physics behind these and other seemingly amazing activities.
"Rainbows take many forms. Multiple bows,
bows that cross, red bows, twinned bows, coloured fringes, dark bands, spokes and more. Find out
about them here."
From the Exploratorium website.
From PBS's Dragonfly TV.
These were popular a few years
back and are still being sold. Usually colorful and chunky, they do a good job illustrating the way
A pulley and some
Ramps of all