The ball on top of a flagpole is called a 'truck'.
24
Windmills always turn anti-clockwise. Except for the windmills in Ireland!
184
Scientists in China have built a prototype high-speed maglev train that is theoretically capable of reaching speeds of up to 1,800 mph (2,900 km/h).
1
All GPS units sold in the civilian market have to be programmed to deactivate themselves if they detect they are travelling faster than 1200 MPH or are above 60,000 feet in altitude to prevent them being used in intercontinental ballistic missiles.
2
Jumbo jets use 4,000 gallons of fuel to take off.
19
The normal static electricty shock that zaps your finger when you touch a doorknob is usually between 10,000 and 30,000 volts!
60
The average car produces a pound of pollution every 25 miles!
18