Celestron's SkyScout personal planetarium ($399 at Amazon.com) lets stargazers instantly identify or locate over 6,000 celestial objects, then provides commentary on the planet or star. It employs a pair of ADXL322 iMEMS accelerometers from Analog Devices, which complement the unit's GPS receiver. They provide accurate inclination measurements so the SkyScout knows what angle the device is pointing relative to the earth's surface. The camcorder-sized device won an adventure gear award from National Geographic last year.
Californiaís plan to mandate an electric vehicle market isnít the first such undertaking and certainly wonít be the last. But as the Golden State ratchets up for its next big step toward zero-emission vehicle status in 2018, it might be wise to consider a bit of history.
A customer who was thermal printing strip steel had a problem: When the strip's speed increased, the thermo printer would catch fire. When he set a flame to a piece of the strip, he couldn't get it to burn. What was the problem?