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Why did anti-drug propaganda on school pencils fail in New York? Detailed answer

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Why did anti-drug propaganda on school pencils fail in New York?

Once in New York, an anti-drug propaganda campaign was launched in schools. To do this, the slogan was placed on the pencils: "I'm too cool to be a drug addict!". However, the creatives did not take into account the fact that pencils wear off over time, and at some point this slogan turns into "be a drug addict!".

Authors: Jimmy Wales, Larry Sanger

 Random interesting fact from the Great Encyclopedia:

What determines hair color?

Human hair has a very interesting structure. It develops from the top layer of the skin, which is made up of squamous cells, and first grows inwards, takes root there, and then works its way up through the layers of the skin. The hair, like the epidermis of which it is derived, has cells that make up the "soil" from which it grows, and a stem that is nourished by this "soil" and pushed up by it. Among the other cells surrounding the hair root are those that contain a coloring pigment called melanin. These cells, like others, divide and are pushed up along with the growing hair itself. They die, leaving melanin granules in the hair.

These granules can be of various shades of brown: from reddish to black-brown. The cells of the keratinized epidermis, from which the hair shaft is formed, are yellow. This color and the color of the pigment granules are mixed, and thus a certain hair color is obtained - from light to black. Our genes, inherited from our parents, determine the color of our pigment granules, and with it the color of our hair. On average, a person has from 300 to 000 hairs.

Blondes have thinner hair and more of it. In brunettes, they are coarser, and there are fewer of them. And redheads have the coarsest hair, but there is less of it than blondes and brunettes. Your hair grows about 13 millimeters in a month. And the rate at which they grow is not the same at different times of the day.

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Ball lightning is modeled 17.03.2009

By applying a 5000-volt discharge from a capacitor bank to a glass tank of tap water, German scientists from the Plasma Physics Institute in Berlin produce a glowing ball about 20 centimeters in diameter. It rises from the tank about half a meter.

The experimenters believe that they were able to simulate the process of the occurrence of ball lightning. True, the duration of the existence of their "working model" is less than a second, while a real ball lightning usually lasts from 2 to 8 seconds. But the voltage developed by lightning is at least a thousand times greater than that from capacitors.

Spectroscopy has shown that the temperature of the plasma ball in the first moments reaches 5000 degrees Celsius, but quickly drops. The plasma contains sodium and calcium ions (from tap water), as well as copper ions (from electrodes).

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