When did the ad appear? Detailed answer

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When did the ad appear? Detailed answer

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When did the ad appear?

If we talk about advertising as a way of disseminating information in the interests of business, then we must admit that it began a long time ago. When a man brings his product to the market and stands there shouting the name of his product, is he not a true representative of "commercial"?

Long before the invention of printing, merchants painted certain signs on the walls in order to draw attention to their goods. Merchants hung out their signs with images of shoes, gloves and other goods that they traded as a kind of way to advertise their business. In ancient times, city criers were also used as advertisements.

Advertising as we know it today did not really come into existence until the invention of printing. In 1480, William Caxton issued a small announcement about the publication of a religious book. With the advent of print, and especially the newspaper, advertising has evolved from a mere message about something to an argument and advice to encourage people to buy goods. Weekly English newspapers advertised coffee, chocolate and tea as early as 1650.

In June 1666, a supplement to the London Gazette came out containing only advertisements! Today, advertising is not only an art, but also a science. Research is carried out, consumer tastes and habits are studied, advertisements are tested and verified. All this is done in order to recoup the costs of advertising as much as possible.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

Are other planets moving?

The earth moves around the sun along a fixed path called an orbit. The time it takes the Earth to complete this orbit is called a year. The earth also rotates on its axis. The time it takes to do this is called a day. The direction of the axis changes very slowly. This movement is called precession. Other planets also revolve around the Sun and around their axis, but their speed of rotation is different from that of the earth. The Earth revolves around the Sun at an average distance of 150 kilometers from it.

The Earth takes more than 365 days to complete its orbit. To complete a rotation around its axis, it needs a little less than 24 hours. Now let's look at other planets. The average distance of Mercury from the Sun is 58 kilometers, and it takes 000 Earth days to complete an orbit around the Sun. It is believed that Mercury rotates around its axis in 000-88 days.

Venus is located at a distance of 108 kilometers from the Sun. She needs 000 days to make one revolution around him. Venus takes 000 days to rotate on its axis, and it also rotates in a completely different direction. In other words, Venus is a planet rotating from East to West.

Mars, which is 228 kilometers away from the Sun, needs 000 days to complete its orbit, and it rotates around its own axis at about the same speed as the Earth.

Jupiter is 789 kilometers from the Sun, it takes 000 years to go around the Sun, but it rotates on its axis in less than 000 hours.

Saturn, at a distance of 1 kilometers from the Sun, takes 426 Earth years to complete its orbit. But it only takes 000 hours for it to turn on its axis.

Uranus is located 2 kilometers from the Sun and orbits it in 870 years.

Neptune is 4 kilometers away from the Sun. It needs 493 Earth years to complete its orbit.

Test your knowledge! Did you know...

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A new color 3D printing method 09.08.2018

Today, people are exploring how 3D printing can be used in manufacturing, medicine, fashion, and even the food industry. But one of the most efficient forms of 3D printing has a serious flaw: it only prints black and white objects. Researchers from the Institute of Photonic Sciences (Spain) have changed the method of XNUMXD printing with SLS technology so that it is possible to print in all colors of the rainbow.

Selective laser sintering (SLS) 3D printers use a laser to heat a powdered material - usually nylon or polyamide. Under the action of high temperature, the powder particles are sintered - and a single solid mass is formed. The printer adds material layer by layer until the desired XNUMXD structure is achieved. To reduce the energy requirements of the process, the researchers decided to add special compounds to the polymer powders - photosensitizers: carbon nanotubes, carbon black and graphene. These materials absorb light much more strongly than polymers and convert it to heat much faster, allowing the use of cheaper, lower power lasers. However, carbon-based photosensitizers can only produce gray or black printed objects.

Scientists from the Institute of Photonic Sciences (ICFO, The Institute of Photonic Sciences) wanted to find a photosensitizer that would allow printing colored objects using the SLS method.

To do this, the researchers developed gold nanorods that would intensely absorb light in the infrared region of the spectrum, being almost transparent to visible light. They coated microscopic rods with silicon dioxide (colourless crystals that are highly durable) and then mixed them with polyamide powders to print XNUMXD objects. They found that gold nanorods convert laser light into heat much better than carbon black.

In addition, the new photosensitizers help produce purer white objects and - when mixed with dyes - brightly colored three-dimensional objects.

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