How are comets and asteroids different?

How are comets and asteroids different?

Asteroids are made up of metals and rocky material, while comets are made up of ice, dust and rocky material. Both asteroids and comets were formed early in the history of the solar system about 4.5 billion years ago. Asteroids formed much closer to the Sun, where it was too warm for ices to remain solid.

Why do we put candles on top of birthday cakes?

Some believe that the tradition of birthday candles began in Ancient Greece, when people brought cakes adorned with lit candles to the temple of Artemis, goddess of the hunt. The candles were lit to make them glow like the moon, a popular symbol associated with Artemis.

Who was the first president born in the United States?

Martin Van Buren. Martin Van Buren (December 5, 1782 – July 24, 1862) was the eighth President of the United States (1837–1841). Before his presidency, he was the eighth Vice President (1833–1837) and the tenth Secretary of State (1829–1831), both under Andrew Jackson.

Do otters hold hands when they sleep?

Otters are known to hold hands in groups – called a raft – while they eat, sleep and rest, to prevent families losing each other. The furry animals, the largest member of the weasel family, are even known to wrap sea plants around them to secure the bond.

Which city is commonly known as the Big Apple?

“The Big Apple” is a nickname for New York City. It was first popularized in the 1920s by John J. Fitz Gerald, a sports writer for the New York Morning Telegraph. Its popularity since the 1970s is due to a promotional campaign by the New York Convention and Visitors Bureau, known now as NYC & Company. In the Midwest, the town of Manhattan, Kansas, locals have taken to referring to the area as ‘The Little Apple.’

Why do quarterbacks lift their leg before the snap?

A QB can lift his leg in both the shotgun formation as well as from under center. In the shotgun, generally, it’s a timing cue for the center to snap the ball. When the QB is under center, the leg lift is generally indicating to players who are split wide in the formation that they can start “in motion”.

Who was the first person to say hello?

The use of hello as a telephone greeting has been credited to Thomas Edison; according to one source, he expressed his surprise with a misheard Hullo. Alexander Graham Bell initially used Ahoy (as used on ships) as a telephone greeting.

How much bigger is a california king?

A standard king is 4 inches wider than a California king, but a California king is 5 inches longer than a standard king. The Measurements: A standard king bed: 76 inches wide by 80 inches long. California king bed: 72 inches wide by 85 inches long.