What does cinema mean? Detailed answer

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What does cinema mean? Detailed answer

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What does cinema mean?

In Greek it means "record of movement".

Author: Mendeleev V.A.

Random interesting fact from the Great Encyclopedia:

Why is gravity different in space than on Earth?

Every object in the universe acts on another object, they attract each other. This is called gravity, or gravity. The force of attraction, or gravity, depends on two factors. Firstly, it depends on how much substance the object, body, object contains. The greater the mass of the substance of the body, the stronger the gravity. If a body has very little mass, its gravity is small.

For example, the mass of the Earth is many times greater than the mass of the Moon, so the Earth has a greater gravitational force than the Moon. Secondly, the force of gravity depends on the distance between the bodies. The closer the bodies are to each other, the greater the force of attraction. The farther they are from each other, the less gravity.

Now let's look at human existence on Earth. The Earth has more mass than a person, so gravity keeps him on Earth. But the Earth acts as if all its matter, all its substance are in the center. Therefore, the force of gravity anywhere on the Earth must be calculated taking into account the distance to its center.

The force of gravity on the coast of the sea is greater than on the top of the mountain. Now imagine a person who has retired from the surface of the Earth for a long distance. There, the force of gravity will be much weaker. When a person is in space, he completely disappears from the field of gravity. The Earth's gravity does not affect him at all. He is in a state of weightlessness. Therefore, rockets, spaceships, astronauts can fly freely in open space.

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Smart vest for the blind 05.08.2020

In the United States, a smart vest was introduced that will help visually impaired people navigate in space. It transmits obstacle data using pressure and vibrations.

Researchers at Harvard University have developed a soft robotic vest that uses cameras to guide visually impaired users. Computer vision finds, classifies and evaluates the movement of objects around the user. The device informs about them by means of pressure on the user's body, depending on the distance to the obstacles. This way they can know in advance that there is a road, a wall or an approaching person ahead.

The researchers describe the Foresight vest as "invisible, accessible and intuitive." It uses soft inflatable textiles and the vibrations will be soft so as not to frighten the user. At the same time, the materials for production are inexpensive, so they can be mass-produced. If some of the sensors fail, they can be replaced separately.

Scientists planned to make this device in the form of a bracelet, but the vest allows you to more effectively monitor the surrounding space, and then issue tactile commands in real time via Bluetooth. Engineers plan that the product will be supported by all current smartphones, however, these devices must be able to process AI data.

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