$49.95
A traditional way to read the temperature and predict the weather.
Storm Glass - Once used by seafarers to predict oncoming storms, the storm glass barometer came into general use in the early 1700's, and responds to atmospheric fluctuations to forecast the weather. Admiral Robert Fitzroy conducted a detailed study of this instrument between 1834 and 1836.
Galileo Thermometer - In 1593, Galileo Galilei discovered that the density of liquids reacts predictably to changes in temperature. He invented a device that allowed temperature variations to be measured.
$24.95 $34.95
This kit is an excellent beginner educational solar kit, teaching the basic solar power principals and also how it drives the motor and makes the movements of each model. This kit provides full set of plastic parts, solar panel and all necessary parts to build your own solar kit. Suitable for ages 10 and up.$29.95
An Astronaut's Guide to Life on Earth is an inspirational memoir of space exploration and hard-won wisdom, from an astronaut who has spent a lifetime making the impossible a reality.