★Humans blink about 15 to 20 times per minute.★A mosquito has 47 teeth.★The Hawaiian alphabet has only 13 letters.★A cloud can weigh more than a million pounds.★The world's oldest known recipe is for beer.★There are only two countries in the world whose names start with 'The': The Gambia and The Bahamas.★The shortest commercial flight in the world lasts just 57 seconds.★Crows can recognize human faces and hold grudges for years.★Saturn would float if you could find an ocean big enough.★The microwave oven was invented by accident when a researcher noticed a chocolate bar melted in his pocket.★A hummingbird's heart can beat up to 1,260 times per minute.★The first item ever sold on eBay was a broken laser pointer.★The shortest war in history lasted 38 to 45 minutes between Britain and Zanzibar.★Chewing gum while you chop onions helps keep you from crying.★The longest recorded flight of a chicken lasted 13 seconds.★The human brain uses about 20% of the body's total energy.★Cleopatra lived closer in time to the Moon landing than to the building of the Great Pyramid.★The Mona Lisa has no eyebrows or eyelashes.★Barbie's full name is Barbara Millicent Roberts.★A group of porcupines is called a prickle.

Size It Up

Two silhouettes. One is the real size, the other is yours to stretch or shrink until it looks right next to it. A blue whale beside a bus, a T. rex beside a giraffe. Within six percent scores a perfect 100, twice the size scores 45, five times off scores nothing. This is the unlimited mode, so the library never runs out.

Visit Size It Up