4M Kidzlabs Tornado maker
Recycle an empty bottle to construct this battery powered 4M Kidzlabs Tornado maker. Create a terrific tornado on your table top and experience the mighty power of this natural phenomenon. Whoosh! Contains base, battery cover, base cover, bottle holder, motor with water-resistant ring installed, propeller, terminal caps, screws, foam ball pack and detailed instructions. Also required but not provided: a small crosshead screwdriver, 1.5V AA battery x 2 and a water bottle. What is a tornado ? A tornado is a rapidly rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. They are often referred to as twisters, whirlwinds or cyclones,although the word cyclone is used in meteorology to name a weather system with a low-pressure area in the center around which winds blow counterclockwise in the Northern Hemisphere and clockwise in the Southern. Tornadoes come in many shapes and sizes, and they are often visible in the form of a condensation funnel originating from the base of a cumulonimbus cloud, with a cloud of rotating debris and dust beneath it. Most tornadoes have wind speeds less than 110 miles per hour (180 km/h), are about 250 feet (80 m) across, and travel a few miles (several kilometers) before dissipating. The most extreme tornadoes can attain wind speeds of more than 300 miles per hour (480 km/h), are more than two miles (3 km) in diameter, and stay on the ground for dozens of miles (more than 100 km).