Why is the Hawaiian language one of the most melodic in the world? Detailed answer

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Why is the Hawaiian language one of the most melodic in the world? Detailed answer

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Why is the Hawaiian language one of the most melodic in the world?

The reason is obviously that the Hawaiian language has 24 vowels and only 3 consonants (sounds).

Author: Kondrashov A.P.

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The military donated two space telescopes to NASA 15.06.2012

The US National Reconnaissance Office (NRO) donated two space telescopes to NASA, which were previously planned to be used to observe the earth's surface. These devices are as large and powerful as the Hubble telescope, but they have many features that conventional astronomical instruments do not have.

Both telescopes have main mirrors with a diameter of 2,4 meters - the same as those of Hubble. But at the same time, they have additional functions that civilian space telescopes do not have. In particular, this is a movable secondary mirror and a 100 times wider field of view - compared to the same Hubble.

The US military currently has 7 Hubble-class telescopes that are used as spy satellites. The NRO gift was a pleasant surprise for NASA, although there are a number of questions about the use of these telescopes. First of all, they are on Earth, that is, they still need to be put into orbit, naturally at the expense of NASA, in whose budget the corresponding funds are not planned. In addition, military telescopes do not have the appropriate scientific “stuffing”: cameras, spectrographs, etc., as well as software and control personnel. In fact, this is just equipment that can be prepared for launch no earlier than 2020.

On the other hand, astronomers who have studied the "gifts" speak enthusiastically about them and believe that military telescopes can be very effectively used to study dark matter. According to them, the equipment is a significant cost item, moreover, the manufacture of a telescope requires a lot of time and highly skilled engineers. Typically, building a telescope is half the cost of a mission.

Also, astronomers have been promoting the idea of launching a powerful telescope to study dark matter, the expansion of the Universe and supernova explosions for decades. However, the high cost of this mission constantly pushed back the timing of its implementation. Military short-focus telescopes just have a wide field of view and are almost ideal for the above scientific purposes. In addition, they have a 2 times larger mirror than was envisaged for a scientific mission. This eliminates the costly launch to solar orbit and allows you to operate in geostationary orbit, completing the sky survey and data download four times faster.

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