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『エマ・ワトソン水着お披露目』 [パパラッチ18+]

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こういうのも存在するのです。彼女はSEXにも非常に興味があり、カーマスートラをはじめ世界のSEX学を学んでいるとの事。本人が言ってるので間違いはないゾ
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共通テーマ:映画

『チェーンガンの弾薬装填』 [続・兵器図鑑④]


アメリカ軍の戦闘機・攻撃ヘリコプターに搭載されている20mm・30mm ガトリング砲・チェーンガンの弾薬装填作業:AH-1Zヴァイパー (0:06~), F/A-18ホーネット (2:03~), A-10サンダーボルトII (2:57~), F-16ファイティングファルコン (6:36~), AH-64アパッチ (7:16~), F-15イーグル (7:43~)。
from USA Military Channelさま
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共通テーマ:趣味・カルチャー

『X9 in 47 Tucanae』 [科学]


In astronomy, a binary system is one where two objects are close enough that they orbit each other because they are gravitationally bound to one another. There are many possible combinations of binary systems: stars like the Sun orbiting each other, two neutron stars, a massive star and a smaller one, and so on. Binary systems are useful to astronomers for many reasons, including being useful laboratories to measure the masses of stars....

In astronomy, a binary system is one where two objects are close enough that they orbit each other because they are gravitationally bound to one another. There are many possible combinations of binary systems: stars like the Sun orbiting each other, two neutron stars, a massive star and a smaller one, and so on. Binary systems are useful to astronomers for many reasons, including being useful laboratories to measure the masses of stars.

Recently, astronomers have found a particularly interesting binary. This pair has a white dwarf star in orbit around a black hole. While scientists have found this configuration many times before, this binary, known as X9, is special. That’s because it has the closest orbit ever seen between a black hole and a companion star.

The X9 system is located in 47 Tucanae, a dense star cluster in the outskirts of the Milky Way. Using NASA’s Chandra X-ray Observatory along with data from other telescopes, researchers determined that the white dwarf makes one complete orbit around the black hole in less than a half an hour. This means that the separation between the white dwarf and the black hole is about two and half times the distance between the Earth and the Moon. In cosmic terms, these two objects are extremely close together.

What does this close pairing mean for the objects in X9? The extreme proximity likely spells a bleak future for the white dwarf. Although scientists don’t expect the white dwarf to fall into the black hole, they do think so much material will be pulled from the star that it will one day become some sort of exotic planet or even evaporate all together. In the short term, astronomers are going to watch this system very closely, because they don’t know exactly how such an extreme system will behave.
from Chandra X-ray Observatoryさん
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『寒さと闘う』 [軍事㊴]


Marines with 1st Combat Engineer Battalion, 1st Marine Division participate in Mountain Training Exercise 2-17 at Marine Corps Mountain Warfare Training Center, Bridgeport, California, Feb. 24-27, 2017. 1st CEB conducted scenario-driven training that encompassed operations in a mountainous, snow-covered environment. The exercise challenged 1st CEB to generate combat engineering solutions to infantry driven tasks.

(U.S. Marine Corps video by Lance Cpl. Carlos Lopez)
from Marinesさま
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共通テーマ:趣味・カルチャー

『いくつもの苦難に耐える』 [軍事㊴]


"Being in the Marine Corps infantry is not a job, it's a lifestyle."

Sgt. Jordan Tilton, machine gun section leader for 2nd Battalion, 4th Marine Regiment, talks about his experience in the Marine Corps, the reasons why he enlisted and why he reenlisted to serve his country for the future.

(U.S. Marine Corps video by Lance Cpl. Mike Hernandez)
from Marinesさま
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共通テーマ:趣味・カルチャー

『スパルタン ペガサス』 [軍事㊴]


Soldiers from the 4th Brigade Combat Team (Airborne), 25th Infantry Division, take part in an exercise north of the Arctic Circle near Deadhorse, Alaska.
from The U.S. Armyさま
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共通テーマ:趣味・カルチャー