A fully loaded supertanker traveling at normal speed takes a least twenty minutes to stop.
27
The first hard drive available for the Apple II had a capacity of only 5 megabytes.
46
Whale oil was used in automobile transmissions as late as 1973.
56
More than a billion transistors are manufactured every second.
-25
Energy is being wasted if a toaster is left plugged in after use.
21
A small airplane can fly backwards.
75