curiosities

How much do energy saving light bulbs save?

Fluorescent bulbs and LED bulbs last between 6,000 and 15,000 hours, that is, up to 15 times longer than conventional bulbs. They also use less electricity, up to a fifth of what normal incandescent bulbs use.

What is flatus that appears when running?

Doctors call it transient abdominal pain (TAD) associated with physical exercise, although colloquially it is known as flatus. Those who suffer describe it as a "sharp and stabbing pain located in the abdominal area, generally lateral, associated with repetitive movements of the torso."

Do moths drink tears?

Some moths in Africa and Asia often drink the tears of crocodiles, horses, antelope, and deer, among other animals. The species 'Mabra elephantophila' dares with even larger animals, the elephants, although the truth is that it seems that the pachyderms do not flinch as the insect hangs on its eyelashes to take a drink.

What is a capicúa?

A capicúa figure or palindrome number is a number that is read the same from left to right as from right to left. For example, the numbers 22, 111111, 343, 5665, and 17371 are capicua. The term comes from the Catalan expression cap i cua (head and tail).

Does our birth weight influence social success and health as adults?

Weighing less than 2.5 kilos at birth increases a person's chances of dropping out of high school by a third, reduces their annual earnings on average by around 15 percent and reduces health around the age of 30-40, according to a study from the University of Michigan.

Why does bread darken when toasted?

This phenomenon is due to non-enzymatic browning reactions or Maillard reactions (named after the French chemist Louis Camille Maillard), which are responsible for the tastes, smells and colors of roasted, baked, roasted or fried foods. They are produced between amino acids and sugars and especially from 140ºC of temperature.

Why do we say

The objective of saying "aaa" while the doctor examines us is that he can see the pharynx and check if the mucosa is inflamed, or has pus. Normally the tongue does not allow a good view of the pharynx, but when saying "aaa" the back flattens, the tongue extends into the hollow of the lower jaw, and that allows the throat to be observed.

In what season of the year do most people die from a lightning strike?

According to a study carried out a few years ago by the University of Illinois (USA), the day that most people die from lightning in the United States is July 4, the national holiday. In fact, in general, summer is the season in which there are more deaths worldwide due to this meteorological phenomenon.

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