By Janice VanCleave
How a lot may you weigh on Mars?
What can exploding balloons let us know approximately weather?
Why do heavy ships remain afloat on water?
how will you elevate an elephant with one finger?
you will discover the solutions to those and plenty of different attention-grabbing questions in case you trip via technological know-how heritage with Janice VanCleave as your advisor. full of enjoyable evidence, actions, and experiments, Janice VanCleave's technological know-how throughout the a long time introduces you to the fantastic tales at the back of many of the maximum medical discoveries of our time. each one bankruptcy presents easy-to-follow directions for hands-on experiments, in addition to transparent causes that exhibit the numerous methods technology has helped people--from precedent days correct up via today!
you can find out how you can use Stone Age instruments to make artwork, construct an easy telescope, examine your individual blood vessels (did you recognize you've got hundreds of thousands of miles of them?), build a stethoscope, create a version of Galileo's fuel thermometer, and lots more and plenty extra. as with every of Janice VanCleave's books, the fabrics are secure, reasonably cheap, and simply stumbled on round the apartment. So take a time-traveling travel of discovery and prepare for hours and hours of attention-grabbing technology fun--at domestic or within the school room.
Read Online or Download Janice VanCleave's Science Through the Ages PDF
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Additional resources for Janice VanCleave's Science Through the Ages
Example text
As it revolves, different amounts of the side of the Moon facing Earth are lighted by the Sun. During the new moon phase, the Moon is between Earth and the Sun. The side of the Moon facing the Sun is lighted, so the side facing Earth is dark. As the Moon moves in its orbit, more and more of the side facing Earth is lighted. A few days after new moon, a small amount of the Moon is lighted. This occurs on the right side of the Moon in the Northern Hemisphere, the region of Earth north of the equator (an imaginary line that divides Earth in half).
Chilling and freezing have also long been used in cold climates as methods of preserving food. Natural ice was the first means of refrigeration (a process of preserving by cooling). Since the time of the early Greeks and Romans, snow and ice were harvested in winter and stored in what were the first ice chests— pits lined with insulating (restricting heat flow) materials such as straw. Food was packed in the ice and snow to keep it cold and the straw slowed the melting of the ice and snow. But snow and ice weren’t always available, and inventors were encouraged to develop artificial cooling methods.
Schultz, Ron. Looking Inside Telescopes and the Night Sky. : John Muir Publishing, 1992. Describes different kinds of telescopes, how they work, and what they tell us about the universe. Scott, Elaine. Close Encounters: Exploring the Universe with the Hubble Space Telescope. New York: Disney Press, 1998. Explains what scientists have learned about our solar system and the universe from information collected by the Hubble Space Telescope. VanCleave, Janice. Janice VanCleave’s Help! My Science Project Is Due Tomorrow!