How do pigeons help doctors and drug dealers? Detailed answer

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How do pigeons help doctors and drug dealers? Detailed answer

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How do pigeons help doctors and drug dealers?

Now carrier pigeons are rarely used to deliver letters, but they successfully cope with other tasks. For example, in remote areas of England and France, pigeons deliver blood samples to the hospital. And drug traffickers are launching entire flocks of pigeons to deliver heroin from Afghanistan to Pakistan.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

What is radiation?

In its most general form, radiation is the propagation of waves of energy. You are familiar with this phenomenon from early childhood, although you did not know what it was. When you hold your hand in front of a hot stove, or a radiator, or a light bulb, you feel the heat radiate. When you sit in the sun, radiation called "ultraviolet rays" affects your skin. These are all examples of electromagnetic radiation.

The other main type of radiation is called radioactive radiation. It comes from radioactive materials or nuclear reactions. Radiation emits particles and waves of energy. Since electromagnetic radiation is the propagation of waves of energy, we should know something about these waves. The distance between the waves is called the wavelength. The number of waves passing through a given point per second is called the frequency. And we will call a group of waves in a certain range of wavelengths a spectrum.

The group with the shortest wavelength is called the X-ray spectrum. Then comes the ultraviolet spectrum. Behind it is the spectrum of visible light, the waves of which we see. In the next range, the waves get longer and we can no longer see them. This is the infrared spectrum.

Even longer wavelengths are used in radio, television, and radar. Where is the source of these waves? In some cases, machines are needed to create them, in others they are obtained in nature. Natural waves come, for example, from the Sun. In order to cause radiation, energy is needed. As for the Sun, energy is created here as a result of a thermonuclear reaction. And to get X-rays, the target must be bombarded with particles.

Radioactive radiation is the process of change or decay that certain elements undergo. Such chemical elements are called radioactive. They emit particles (and waves) as a result of the splitting of the nuclei of their atoms.

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Recognition of dogs by nose pattern 18.07.2019

Chinese startup Megvii, which specializes in image recognition using artificial intelligence, has developed a biometric dog identification service. During its work, more than 15 thousand lost pets have already been returned to their owners. The organization also plans to create a system that allows the government to track unscrupulous pet owners and punish them.

Megvii is a Chinese government contractor and has been involved in building a facial recognition system to spy on Chinese citizens. Now it's the turn of their pets. To enter your dog's details into the application, you need to take a close-up photo of his face from several angles. The nose of many pets is not only an indicator of their health, but also has a unique skin pattern, similar to human fingerprints. Thanks to this, the accuracy of identification in the new pet recognition system reaches 95% and will only grow.

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