What determines the pitch of the sound?

What determines the pitch of the sound?

Since pitch is such a close proxy for frequency, it is almost entirely determined by how quickly the sound wave is making the air vibrate and has almost nothing to do with the intensity, or amplitude, of the wave.

Why is it called a chinese fire drill?

“Chinese fire drill” is a slang term for a situation that is chaotic or confusing. Origins. The term goes back to the early 1900s, and is alleged to have originated when a ship run by British officers and a Chinese crew practiced a fire drill in the engine room.

What percentage of the human body is water?

By one year of age, that amount drops to about 65%. In adult men, about 60% of their bodies are water. However, fat tissue does not have as much water as lean tissue. In adult women, fat makes up more of the body than men, so they have about 55% of their bodies made of water.

Where did Hail Mary in football come from?

The term became widespread after a December 28, 1975 NFL playoff game between the Dallas Cowboys and the Minnesota Vikings, when Cowboys quarterback Roger Staubach (a Roman Catholic) said about his game-winning touchdown pass to wide receiver Drew Pearson, “I closed my eyes and said a Hail Mary.”

How much does mount Everest grow each year?

Readings suggest that Everest grows 0.1576 inches (about four millimeters) each year. Other tectonic forces, however, may cost Everest some of its height.

Why was Ken Mattingly replaced for the Apollo 13 mission?

Mattingly’s first assignment was to be the Command Module Pilot on the Apollo 13 mission. Three days prior to launch, he was removed from the mission due to exposure to German measles (which he never contracted) and was replaced by the backup CM pilot, Jack Swigert.

How many paintings did Picasso paint in his lifetime?

Picasso was exceptionally prolific throughout his long lifetime. The total number of artworks he produced has been estimated at 50,000, comprising 1,885 paintings; 1,228 sculptures; 2,880 ceramics, roughly 12,000 drawings, many thousands of prints, and numerous tapestries and rugs.

What did Babe Ruth wear under his hat?

Babe Ruth wore a cabbage leaf under his cap to keep his head cool. He changed it every two innings.