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Kiwi Chow Ang Moh can not do ICBM nor Satellite lanunched ‘space graffiti.’ got FUCKED!

Shut Up you are Not MM

Alfrescian
Loyal
NK, China, Russia, USA, Ah Neh, got ICBMs & Satellites in space, Japs Korea, Pee Sai, etc at least got some fucked up satellites, but this FUCKTARD USELSS Kiwi Ang Moh got nothing except sheep poo and launched a useless shinny ball good for nothing into space to be rubbish and waste energy / fuel of rocket. Polluting planet earth, got fucked by angers astronomers


https://www.washingtonpost.com/news...d-over-space-graffiti/?utm_term=.c69f5ca0c2b7




Speaking of Science
Company shoots shiny orb into orbit and angers astronomers over ‘space graffiti.’


by Ben Guarino January 26 at 2:11 PM
3PCKB7YNPAZGREPWOMRETI26EA.jpg

Rocket Lab founder and chief executive Peter Beck stands with the Humanity Star in New Zealand in November. (Rocket Lab via AP)

Earlier this month, the New Zealand-based private spaceflight company Rocket Lab successfully delivered its first orbital payload. Rocket Lab's Electron rocket released, along with three commercial satellites, an art installation-as-satellite called the Humanity Star.

The satellite, a highly reflective 65-faced ball crafted of carbon fiber, will orbit Earth for nine months. Around October, its orbit will decay, and the satellite will disintegrate as it descends in the atmosphere. Until its destruction, the Humanity Star will twinkle so brilliantly it can be witnessed by observers below. It will be most visible at dawn or dusk, creating an effect Rocket Lab likened on its website to a “bright flashing shooting star.”

Rocket Lab's goal is nothing less than a reflection on the cosmos. “Wait for when the Humanity Star is overhead and take your loved ones outside to look up and reflect. You may just feel a connection to the more than seven billion other people on this planet we share this ride with,” founder Peter Beck said in a statement on the company's website (which also hosts a location tracker for the orb).

But the giant Dungeons & Dragons die floating through space is not a critical hit. Not among professional stargazers. On Thursday, Mashable journalist Miriam Kramer collected criticisms from astronomers on Twitter. The scientists described the Humanity Star as vandalism, a disco ball, “space graffiti” and “space garbage.” Naked eyes can already see the International Space Station, astronomer Eric Mamajek tweeted, and sending reflective objects into orbit has not, in the past, prompted “awe and world peace.”

Columbia University astronomer Caleb A. Scharf, writing at Scientific American, said the idea “sounds like jolly nice fun” but also fills him “with a big dose of dread.” The satellite, in his perspective, is an unwanted intrusion into an environment increasingly crowded by satellites.

There are a few thousand satellites in Earth's orbit. And our ability to deploy a bunch of satellites at once is growing: In February, India deployed 104 small satellites from a single rocket, setting a world record. Decades before space powers had such capabilities, NASA astrophysicist Donald Kessler worried about space debris triggering a chain reaction of collisions among a sky thick with satellites, a scenario termed the “Kessler syndrome.”

This is not to suggest that the Humanity Star will be the spark that sets off a Kessler syndrome. “Kessler was describing an orbital Nagasaki, where everything was annihilated,” Federal Communications Commission economist Peter J. Alexander, who has written a paper on space trash, told The Washington Post in 2013. “But there are degrees in which the environment gets degraded even before that sort of collisional cascade,” he added.

“I don't want to be too negative about the Rocket Lab ball — I salute them for their success in putting it into orbit,” New York University astrophysicist Benjamin Pope told The Post. He also pointed to a tweet that suggested not everyone in the field was opposed, summing up the counternarrative: “It is probably short lived and kind of cool.”

That said, he disagreed with Rocket Lab's decision. “Privately sending bright toys up there can harm the international astronomical community's use of it,” he said.

Satellites do not need to be chronic pests or annihilators to cause headaches. A quick blaze through a telescope's field of view can disrupt research. “Astronomers are well used to finding their hard won images streaked with the destructive light trails of glinting objects as they pass overhead,” wrote Scharf, who also compared launching the Humanity Star to sticking a “big flashing strobe-light on a polar bear.”


“This Humanity Star could well be a minor annoyance,” Pope said, “in particular, as it zooms through the sky it will pass through the fields of view of ground based observatories and ruin patches of their data.” He could only find limited information about the object's orbit, but he was concerned it might travel above large observatories in Hawaii or Chile, which are particularly sensitive to bright objects.

Rocket Lab did not immediately respond to a request for comment. But when Pope tweeted, “Oh god why would you do this to us astronomers,” the company replied that the object's presence will be short-lived.


The company is also “considering future iterations of the Humanity Star” once this one is destroyed, according to its website.

Read more:

 

Shut Up you are Not MM

Alfrescian
Loyal
PRC today tested latest 120 tons trust liquid fuel rocket engine, this is vector together with rocket pump. Very reliable method.

http://mil.news.sina.com.cn/jssd/2018-01-28/doc-ifyqzcxh6479360.shtml


中国首曝120吨火箭发动机试车画面 壮观似火山爆发
中国首曝120吨火箭发动机试车画面 壮观似火山爆发

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  1月26日,央视纪录片频道《创新中国》节目播出了中国首台120吨泵后摆火箭发动机首次试车的高清画面,场面极为壮观刺激。这次试验不但使得中国成为世界上第二个掌握泵后摆核心技术的国家,而且为中国研制500吨级重型火箭发动机打开了通道。

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  此次试车的首台泵后摆发动机,是在已经进入工程应用阶段的120吨液氧煤油高压补燃发动机基础上,通过局部调整来验证对液体火箭发动机泵后摆技术。而这一技术是中国研制500吨级液氧/煤油重型火箭发动机的关键,因为只有突破泵后摆技术,才能够让更大的火箭发动机实现设计优化,扫除重型运载火箭发动机研制上的拦路虎。

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  这次火箭发动机试车试验,是在陕西抱龙峪浅山沟的901试车台,其最大承载能力为500吨,多项技术达到世界先进水平。随着点火的命令,山谷中传来了火箭发动机的巨大轰鸣和山谷内腾起的水雾,场面蔚为壮观。在这次试车的视频中,我们可以清晰地看到,柔性连接的高压摇摆软管,承受住了涡轮泵排出的高温高压富氧燃气多重考验(见下图),在试验过程中活动自如,结构可靠。

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  早在2016年8月,中国重型运载火箭500吨级液氧煤油发动机首次燃气发生器-涡轮泵联动试验取得成功。而这次泵后摆技术试车的成功,标志中国研制500吨级重型火箭发动机的技术,正在被逐一攻克。据中国500吨级液氧煤油发动机设计总负责人李斌表示,为了这次泵后摆技术试车,他和相关科研人员已经花了两年时间。

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  这是迄今为止中国公布的最清晰的液氧煤油发动机试车画面,让观众充分感受到中国火箭澎湃的动力。而这一试车服务的目标,是中国正在研制的500吨级液氧煤油发动机,这比俄罗斯著名的RD-180火箭发动机推力还要大。相信在技术的推动下,中国未来的重型运载火箭将把中国人带向更远的深空。(作者署名:诤闻军事)

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  中国首台120吨泵后摆火箭发动机首次试车的高清画面
 
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