### How much is 20 pounds of quarters worth?

The first surprise is that a pound of dimes and a pound of quarters are essentially worth the same amount of money, namely \$20, a coincidence on two levels that isn’t so well-known.

In the area west of Marquette, Michigan. Water Volume: 3,000,000,000,000,000 gallons of 440 trillion cubic feet or 10% of the world’s fresh water. Enough to flood North and South America to one foot deep. See story about Lake Superior ice coverage March 2009.

Karl Benz founded the company that would one day be called Mercedes-Benz in 1883, and they sold their first automobile in 1886. Big whoop. Henry Ford made cars ubiquitous not long after founding his factory in 1903.

Percy Spencer was working as a researcher for American Appliance Company (now Raytheon) when he noticed a radar set using electromagnetic waves melted the candy bar in his pocket. He had the idea to make a metal box using microwaves to heat food, but the company was the one to file the patent. He received a \$2 bonus but never any royalties.

The reason why ice forms on the top of lakes and ponds is that once water cools below 39 degrees Fahrenheit, it becomes lighter and less dense the more it cools. This means that water expands as it freezes into ice. As a result, ice takes up more room than the water it was made from.

The Grand Canyon is 277 miles (446 km) long, up to 18 miles (29 km) wide and attains a depth of over a mile (6,000 feet or 1,800 meters).

Bats are the only mammals that are able to fly. The “flying squirrel” can only do what the gliding opposum does — glide for short distances.

In games which are broadcast on television, radio, or over the Internet, each team is granted one 60-second timeout and four 30-second timeouts per game in addition to the media timeouts each half. High school basketball allots five time outs per game, with three 60-second and two 30-second time outs.