COWS HAVE ADVANCED SALT SNIFFERS

With an advanced sense of smell, cows can detect sodium from up to six miles away.

First introduced at the 1904 World’s Fair, puffed rice was billed as an alternative to popcorn, not as a breakfast cereal.

William Painter, inventor of the bottle cap, suggested a number of tools for opening bottles: a knife, a screwdriver, a nail, an ice pick. He later created a bottle cap opener.

In 1927, the first Volvo came off the assembly line in Goteborg, Sweden.

Historians believe that, after the dog, the goat was the second animal to be domesticated.

The Otis Elevator Company has 1.4 million of its elevators, operating in buildings around the world, including the White House, the Kremlin, Buckingham Palace and the Vatican.

Steel wheels on steel rails result in such minimal friction that travel by train is about 10 times more energy-efficient than travel by road.

New York City stopped installing seesaws in its 900-odd park playgrounds in 1986. It was decided that the risk of injury to children was too high.

The United Nations has its own post office, fire department and security force.

New York City’s transit buses travel nearly 102 million miles each year.