Is the Hydra real?

Is the Hydra real?

No, but lizards can self-amputate their tails for protection and they will grow back after a few months.

What does cross my fingers mean?

Also, when you “keep your fingers crossed,” you are wishing for good luck. If you hide your hand out of sight, down by your leg or behind your back, though, it means you are telling a deliberate lie. By crossing your fingers in this way, you are hoping somehow to be excused or to escape punishment for lying.

Who came up with the term sociology?

In 1838, the French-thinker Auguste Comte (1798–1857) ultimately gave sociology the definition that it holds today. Comte had earlier expressed his work as “social physics”, but that term had been appropriated by others, most notably a Belgian statistician, Adolphe Quetelet (1796–1874).

What does the A stand for in am radio?

Note on the left that when the carrier wave of FM radio is modulated with sound that the distance between the waves, or the frequency of the carrier wave, changes. Thus, AM radio works by changing the amplitude of the carrier wave and FM radio works by changing the frequency of the carrier wave. Frequency Response.

Why Are Taxi Cabs are yellow?

In 1907, car salesman John Hertz looked at his surplus of traded-in cars and decided to start a taxi business . Since taxis needed to stand out, the colour yellow was chosen. That was the result of a survey by the University of Chicago which conlcluded yellow was the easiest colour to spot.

Why is it called a tennis bracelet?

Tennis bracelets got their unusual name from an incident involving Chris Evert during a US Open match in 1987. Chris had been wearing an expensive bracelet featuring an inline string of individually-set diamonds. When the clasp snapped, she asked the officials to stop the match until the jewelry could be found.

What was the first bird to be domesticated by man?

The goose was the first bird to be domesticated by man. An ancient story tells how a flock of white geese raised the alarm when Rome was attacked by the Gauls, and thus saved the city.

Which is the most abundant metal in the earth’s crust?

Aluminum is the most abundant metallic element on the surface of the earth and moon; it composes more than eight percent of the earth’s crust. It is never free in nature, combining with oxygen, sand, iron and titanium; its ores are mainly bauxites (aluminum hydroxide).