How long does it take for a diamond to form?

How long does it take for a diamond to form?

Most natural diamonds are formed at high temperature and pressure at depths of 140 to 190 kilometers (87 to 118 mi) in the Earth’s mantle. Carbon-containing minerals provide the carbon source, and the growth occurs over periods from 1 billion to 3.3 billion years (25% to 75% of the age of the Earth).

Who was the first president to be sworn in by a woman?

Sarah T. Hughes is the only woman to administer the oath of office. She was a U.S. District Court judge who swore Lyndon B. Johnson into office on Air Force One after John F. Kennedy’s assassination.

Who is credited for creating the game of baseball?

You may have heard that a young man named Abner Doubleday invented the game known as baseball in Cooperstown, New York, during the summer of 1839. Doubleday then went on to become a Civil War hero, while baseball became America’s beloved national pastime.

Is a contraction one word or two?

A. Contracted words count as the number of words they would be if they were not contracted. For example, isn’t, didn’t, I’m, I’ll are counted as two words (replacing is not, did not, I am, I will). Where the contraction replaces one word (e.g. can’t for cannot ), it is counted as one word.

How many pairs of hearts does an earthworm have?

The aortic arches function like a human heart. There are five pairs of aortic arches, which have the responsibility of pumping blood into the dorsal and ventral blood vessels. The dorsal blood vessels are responsible for carrying blood to the front of the earthworm’s body.

When was the first motion picture with sound?

Vitaphone, as this system was now called, was publicly introduced on August 6, 1926, with the premiere of Don Juan; the first feature-length movie to employ a synchronized sound system of any type throughout, its soundtrack contained a musical score and added sound effects, but no recorded dialogue—in other words, it had been staged and shot as a silent film.

What did Louis XIV do to a boy who made fun of his bald head?

In 1674, when he was visiting a school at Clermont, he heard from the school’s authorities that one of the children, a nine- year-old Irish lad named Francis Seldon, had made a pun about the king’s bald head.
Louis was furious. He had a secret warrant drawn up for the child’s arrest, and young Seldon was thrown into solitary confinement in the Bastille. His parents, members of one of Europe’s richest merchant families, were told simply that the child had disappeared. Days turned to months, months to years, and Louis himself passed away. But Francis spent sixty-nine years “in the hole” for making fun of the king’s baldness.

What makes up all living things?

The six most common elements in living things are carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur. Atoms of these elements combine and form thousands of large molecules. These large molecules make up the structures of cells and carry out many processes essential to life.