What famous ship acted as another equally famous ship in the movie? Detailed answer

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What famous ship acted as another equally famous ship in the movie? Detailed answer

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What famous ship acted as another equally famous ship in the movie?

In 1946, the film "Cruiser Varyag" was released on the screens of the country. In the role of "Varyag" it was decided to remove the equally famous ship - the cruiser "Aurora". Since the cruisers had a different design and appearance, the Aurora had to be "made up": a fourth, false tube and several guns were installed, the bow was redesigned and a commander's balcony was built at the stern.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

What is magma?

The Earth is very hot inside. The heat melts the rocks, and they are there in a liquid state. This liquid stone is enclosed in a huge underground package. It's called magma. Magma is lighter in weight than cold rocks. Therefore, it rises up under the pressure of the surrounding rocks.

In many places, magma never breaks out, but slowly cools and solidifies underground. It takes thousands of years for magma to turn into mountains. In some places, cold, hard rocks on the Earth's surface cannot withstand the pressure of magma from within. They crack, and magma bursts out through the faults.

Magma often remains hot enough to be liquid until it reaches the Earth's surface. It breaks out through the cracks and spreads on the ground. Magma that has come to the surface of the Earth is called lava. Magma usually begins to cool as soon as it erupts.

While magma slowly rises to the top, some of the substances entering it crystallize faster than others. These crystals float in magma. When magma reaches the Earth's surface, the molten rock solidifies very quickly. Large crystals, frozen, form mountains of lava. And the whole mountain turns out to be composed of numerous large crystals embedded in such rocks as basalt. Such a mountain is called porphyry. It serves as a source of stone, which is very beautiful when polished, and is used to build houses.

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Laser radar for space 04.03.2012

Experts from the European Space Agency are developing a compact laser navigation radar (lidar) that will give spacecraft new opportunities for exploring deep space.

Lasers are already used in the automatic docking system of the ESA ATV cargo ship: a laser beam is reflected from a special mirror on the docking port of the International Space Station and allows you to measure the distance with an accuracy of a couple of centimeters. For a mission deep into the solar system, ESA hopes to use XNUMXD lidars that can quickly create a three-dimensional map of complex objects, such as rock-strewn valleys or small asteroids.

The new lidar will be used for three main purposes - primarily for guidance, navigation and control of descent vehicles, which, thanks to lidar, will be able to choose a safe landing site. Lidar will be able to choose a site suitable for landing, which will relieve designers from the need to put a multiple margin of safety into the descent vehicles, thereby reducing the payload of scientific work. Also, the laser radar will be used to control robots on the surface of various celestial bodies and for docking in planetary orbits. Lidar will be the key instrument for the Mars Sample Return Mission, which will land an automated station on the surface of Mars to collect soil samples and then deliver them to Earth.

Ground-based lidars already exist and are widely used to scan buildings and industrial facilities. However, existing samples are too bulky for use in space. ESA specialists will have to create a new class of lidars - compact, reliable and with low power consumption. A shoebox-sized lidar has already been built. With the help of several scanning mirrors and a highly sensitive receiver, it can map the area from a distance of several kilometers. A similar device will be installed on the Lunar Lander, which is due to land on the south pole of the moon in 2018.

European engineers are also looking for ways to create even smaller lidars based on new types of detectors and micromechanical optical mirrors. This is expected to reduce the weight and power consumption of lidars by at least 70%.

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