A toaster uses almost half as much energy as a full-sized oven.
33
Whale oil was used in automobile transmissions as late as 1973.
56
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
More than a billion transistors are manufactured every second.
-25
Jumbo jets use 4,000 gallons of fuel to take off.
19
The IRS processes more than 2 billion pieces of paper each year.
28
The oil used by jewelers to lubricate clocks and watches costs about $3,000 a gallon.
41
More steel in the United States is used to make bottle caps than to manufacture automobile bodies.
55