Any domino can knock over another object up to 1.5x its size. The 32nd object would be big enough to knock over the Empire State Building.
18
NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
Tsunamis ( tidal waves ) travel as fast as jet planes.
97
Music is as addictive to the brain as sex and drugs.
27
In the case of an emergency, a Crayola crayon can be used as a candle and will burn for about 15 minutes.
36
The cruise liner, 'Queen Elizabeth 2', moves only six inches for each gallon of diesel that it burns.
26
An iceberg contains more heat than a lit match.
73