Where did the phrase “to cony coals to Newcastle” originate and What does it mean?

where did the phrase to cony coals to newcastle originate and what does it mean scaled

The current American equivalent of the expression “”to cony coals to Newcastle” is “to sell refrigerators to the Eskimos.” The idea is of doing something that is the height of superfluity. In explanation, Newcastle, or Newcastle upon Tyne, to use the official name of this ancient English city, lies in the center of the great … Read more

What does the expression “to rake over the coals” mean and Where does it come from?

what does the expression to rake over the coals mean and where does it come from

Until comparatively recent times the sin of heresy was, in many countries, punishable by death. In England, during the fifteenth and sixteenth centuries, one found guilty of departing from the creed and tenets of the church might be condemned to death by burning. Thus, the earliest uses of this expression, back in the sixteenth century, … Read more

Where does the expression “to go woolgathering” come from and What does it mean?

where does the expression to go woolgathering come from and what does it mean scaled

The expression “to go woolgathering” means to be engaged in trivial employment; to indulge in aimless reverie. Though this expression has long had such figurative meanings, its origin was literal. People did actually wander in a seemingly aimless manner over the countryside gathering the fragments of wool left by passing sheep on bushes or fences … Read more

Where does the phrase “hell bent for election” come from and What does it mean?

where does the phrase hell bent for election come from and what does it mean

“Hell-bent,” an American term, means so determined as to be regardless of the consequences, even hell itself. An article in Knickerbocker Magazine in an issue of 1835 describes a band of Indians as “hell-bent on carnage.” The present “all out” is a mild substitute for the same thing. But “hell-bent for election” means speed, speed … Read more

Where does the phrase “to beat the tar out of” come from?

where does the phrase to beat the tar out of come from scaled

We use the expression “to beat the tar out of” with the meaning, to beat, whip, or belabor without mercy. Though credited to the United States and with no earlier record of use than the twentieth century, we think it likely that the expression may have been carried to this country by some Scottish or … Read more

How do government inspectors decide whether a steak is Prime or Choice?

how do government inspectors decide whether a steak is prime or choice

It won’t satisfy your curiosity about just what kind of meat you’re eating to learn that the decisions about gradations are, when it comes right down to it, quite subjective. Government inspectors, the only ones permitted to make such decisions, rate the meat right at the slaughterhouse, an entire cow at a time. The overriding … Read more

How do judges select contestants for the Miss America Pageant?

how do judges select contestants for the miss america pageant

Miss America is not chosen on the basis of beauty alone, although this was the case back in 1921 when the pageant originated as a showcase for Atlantic City bathing beauties who paraded the Boardwalk on Labor Day weekend. Today the pageant has become a scholarship foundation, with such other factors as talent and poise … Read more

How do archaeologists determine the age of an artifact and What does chronometric mean?

how do archaeologists determine the age of an artifact and what does chronometric mean

When an archaeologist examines an artifact, knowledge that the object belongs to a certain period sometimes suffices. But in many cases he requires a chronometric, or absolute, date: a quantitative measurement of time with respect to a given scale. Chronometric dating techniques, of which there are a variety, are based on change in natural phenomena. … Read more

What is the difference between soap and detergent and How do detergents remove dirt from clothing?

what is the difference between soap and detergent and how do detergents remove dirt from clothing

Detergents make use of the fact that water sticks to itself. Like soap, detergents are surfactants; water jams surfactant molecules between the surfaces of dirt and clothing fiber to pry the dirt particles loose and keep them from sticking again. Unlike soap, detergents can work in “hard” or mineral laden water almost as well as … Read more

How does the Department of Transportation paint the straight traffic lines on streets and highways?

how does the department of transportation paint the straight traffic lines on streets and highways

Traffic problems are severe enough without the additional hazard of zigzagging lines on city streets or unevenly spaced lanes on a superhighway. To ensure that the lines are straight and to expedite an otherwise painstaking operation, machines are used to apply the paint. Before the actual painting of a small road or city street, the … Read more

How do fireflies flash and What causes the luminescence to occur?

how do fireflies flash and what causes the luminescence to occur

The firefly is a nocturnal beetle whose rhythmic flashes of light are perhaps a means of sexual attraction, perhaps a warning signal for protection. Although scientists are still uncertain about its use, they do know how the light is created. The greenish white “fire” contains little infrared or ultraviolet light and is thus known as … Read more

How do geologists measure continental drift?

how do geologists measure continental drift

When Alfred Wegener, a brilliant German meteorologist working in the early part of this century, came up with a theory that until 150 million years ago there was only one continent on the earth, geologists around the world were skeptical. It took until the 1960’s for man’s knowledge about the lithosphere (the earth’s outermost crust) … Read more

How does a ship move uphill through a canal?

how does a ship move uphill through a canal scaled

When a canal or other waterway passes over rough terrain with steep inclines, a lock or series of locks is built to enable ships to travel safely. A lock is a watertight enclosure equipped with gates at both its upstream and downstream ends. Its size depends on the size of the ships using the waterway. … Read more

How do astronauts pee and poop in space?

how do astronauts pee and poop in space

When an astronaut, dressed in an elaborate spacesuit, is in his capsule hurtling through space at a tremendous speed, and perhaps consuming one of the hydratable delicacies prepackaged for him, relieving himself is not the problem it appears to be. Toilet facilities on the spacecraft are quite simple. The astronaut attaches a plastic bag with … Read more

How does a polygraph machine detect lies and How is a lie detector test conducted?

how does a polygraph machine detect lies and how is a lie detector test conducted

Police have used polygraphs extensively since 1924. The machines have no particular magic of second sight which enables them to probe the twisted emotions of a suspected criminal; rather, they measure blood pressure, pulse rate, and respiration simultaneously by means of a pneumograph tube around the subject’s chest and a pulse cuff around the arm. … Read more

Where does gasohol come from and How is gasohol made?

where does gasohol come from and how is gasohol made

The market for gasohol is still very small and its production costly, but this promising alternative to gasoline has a higher octane than the real thing and cuts down on the consumption of oil. Conservationists are particularly excited about gasohol, for in the final analysis, it is solar energy that drives your car through the … Read more

How do art conservationists remove a fresco from a wall?

how do art conservationists remove a fresco from a wall

Many highly valued frescoes, such as those by Giotto in the Scrovegni Chapel at Padua or the Byzantine wall paintings in Greece, are in grave danger of deteriorating. Frequently, the damage is caused by dampness, which rises through the walls of the building, or penetrates from the outside, or condenses on the inner surface if, … Read more

Who invented IQ tests and How does an IQ test measure intelligence?

who invented iq tests and how does an iq test measure intelligence

Because most people refer to an IQ, or “intelligence quotient,” as a fixed score, with the power to determine one’s education, career choices, and even self respect, you’d think it must be derived from a single, standardized test. Quite the opposite is true. There are numerous tests, with varying fundamental principles and of course different … Read more

How do sword swallowers swallow swords?

how do sword swallowers swallow swords

In an age of sophisticated movie effects and skillful stuntmen, we usually conclude that dangerous exploits on the screen or stage are somehow rigged, especially if the feat is as daring as sword swallowing. But the fact is that most performers of this uncanny act do not fake it or use gimmicks. Admittedly, some magicians … Read more

Where do fake cherries come from and How are artificial cherries made?

where do fake cherries come from and how are artificial cherries made

There are bright red cherries, sometimes found in pie fillings and cakes, that have nothing in them remotely resembling a real cherry. In the 1940’s a synthetic cherry was created, comprised of a sodium alginate solution, artificially flavored and colored with a red dye. Drops of the solution are allowed to fall into a bath … Read more

Who invented “electric eye” elevator doors that open if you walk through them when they close?

who invented electric eye elevator doors that open if you walk through them when they close

Two of the “fathers of the atomic bomb,” Albert Einstein and Max Planck, are also responsible for the development of elevator doors that reopen automatically if they start to close as a person steps into the car. The two men explained how light falling on some materials can change them from poor conductors of electricity … Read more

Who invented Labanotation and Choreology, and How do dancers notate choreography?

who invented labanotation and choreology and how do dancers notate choreography

Until the twentieth century, specific dances were passed on by observation and oral tradition. Although a variety of dance notation systems have since been formulated, two in particular are widely accepted and used with increasing frequency. The first, Labanotation, invented by the movement theorist Rudolf Von Laban in 1928, uses symbols on a vertical staff … Read more

Who invented embalming dead people and How do morticians embalm a corpse?

who invented embalming dead people and how do morticians embalm a corpse

Since ancient times, disparate cultures have been fascinated with the idea of preserving the bodies of the dead. We usually associate embalming with the elaborate funeral rites of the kings and queens of ancient Egypt, but it was also practiced by the prehistoric Paraca Indians of Peru and the Guanches of the Canary Islands. Tibetans … Read more

How does the Sacred College of Cardinals and the Holy See pick a new Pope?

how does the sacred college of cardinals and the holy see pick a new pope scaled

The election of a new Pope by traditional methods passed down through the centuries occurs in the Vatican in Rome, where the College of Cardinals gathers behind closed doors under strict vows of secrecy. This tradition of secrecy arose so that the selection process could take place without interference from powerful secular governments. Precisely what … Read more

How was 3D television invented and How do 3D movies work?

how was 3d television invented and how do 3d movies work

For some, TV has assumed a reality more meaningful than the actual world; others simply delight in the technical advances that have provided, say, better color. But for whatever reason people are enamored of their television sets, a desire to make programs still more lifelike continues: interest in three dimensional TV images is widespread in … Read more