10 completely different things that actually have a lot in common

Psychologists say that development of children you need them to play "find the general." For example, what is the connection between a seagull and a plane? They have wings. Let's play with you in this game? How are the printers and fingerprints? A painting and a nuclear bomb? A dog and a zip fastener? About the compatibility of incompatible things described in the article.

Captcha and old books

reCAPTCHA system helps to identify the living members of the robots. How? She uses words that are scanned from old books and newspapers, blurred text can not recognize the computer. Since bots - computer programs, they are differentiated not text "captcha".

Painting and nuclear bomb

Thanks to nuclear weapons art can distinguish fake paintings until 1945. The fact is that after the use of nuclear bombs in the soil, new isotopes - strontium-90 and cesium-137. And vegetable raw materials with oil paint contains them. All pictures painted before this time do not contain these particles.

Rats, engineers and tuberculosis

Giant Hamster rats minelayers work in Tanzania. Their mind and sense of smell helps them to find the bomb. Also, they are attracted to work in the hospital, they can detect tuberculosis in the early stages.

Telegraph and death

Samuel Morse perfectly painted, to the way he continued to paint, if his life had not changed his wife's death. Morse was on a trip when I received two letters from his father with a difference of three days: the first reported that the wife of Morse is on the mend, the second - She told about her death.. Morse could not say goodbye to a favorite due to slow communications. 7 years later, he heard about the possibility of transmission of information by electricity, and was made the first telegraph message in 12 years.

The color pink and the boys

Delicate pink color used is the color of the boys. Simply Red was the color of manhood, and pink was for boys analogue thereof. Marketing and feminism in the twentieth century changed the idea of ​​the classic color for kids of a certain sex.

Printers and fingerprints

Most laser printers have yellow dots that form a unique pattern. These labels manufacturer encrypts the data and serial number, the date and time of printing. It helps to fight against counterfeiters, as well as helping to investigate cases of information leakage.

Sun and sneezing

Scientists say that about every 4th person sneezes with a bright sunlight. If your mother or father have such a feature, then a 50% chance that it is delivered to you. When a bright sun, a person sneezes from 1 to 10 times, and then quenched reflex approximately day.

Dog and Velcro fastener

Georges de Mestraim who invented Velcro, fired up with this idea after walking the dog. He shot thorn mug with dogs every day and decided to understand the principle of how they cling. He is considered a thorn under the microscope and set about trying to come up with a clasp that works on this principle. It took many decades before the world saw the first Velcro.

Vikings and Marketing

The first advertisement with the seller name appeared thanks to Eric redhead - a traveler and discoverer of Greenland. He called the land "green" as opposed to the ice of the country. Sells name attracted a few dozen ships with settlers.

Roller coasters and chastity

At the end of the XIX century Americans loved to have fun in brothels and saloons. Inventor Lamarkus Thompson decided to offer an alternative way of entertainment - riding in a carriage among the scenery. He created the largest in the USA amusement park "Coney Island." With him began the history of roller coasters.

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