Why is half of the ship black and half of it is silver colored? that's because the bottom as seen from orbital entry is, has a heat shield on it. So the black there is the heat shield and then the core structure of the rocket is a special alloy of stainless steel and that's , page 17

Why is half of the ship black and half of it is silver colored?

that's because the bottom as seen from orbital entry is, has a heat shield on it. So the black there is the heat shield and then the core structure of the rocket is a special alloy of stainless steel and that's where you see the sort of shiny silver parts are stainless steel.

The reason for steel over aluminum is that the heat of atmospheric entry and the heat of the rocket engines is enough to easily melt aluminum but steel is much more resilient against both a sand heating, but especially the re entry heating.

And you don't have to paint it, which is actually very difficult at to paint a large object that is going through cry genetic cycles and have the paint stay on.
It's quite challenging

1周内 1个月内 1年内全部时间

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Why is half of the ship black and half of it is silver colored? that's because the bottom as seen from orbital entry is, has a heat shield on it. So the black there is the heat shield and then the core structure of the rocket is a special alloy of stainless steel and that's btc ( twitter.com )

btc

Today is the 3rd anniversary of the Ukrainian Army liberating the city of Kherson (pop. 300 000 before the war) This is how the people of the city greeted the first soldiers entering the city after nearly 9 months of Russian occupation. Putin still claims this city for Russia 时政 ( twitter.com)

时政

One of the powerful features of Xiaomi car: shaking off fallen leaves The man is the CEO of Xiaomi 时政 ( twitter.com)

时政

Absolutely deranged Here is why disgraced Alameda County DA Pamela Price got recalled in the first place and now she is running for the district attorney seat AGAIN 时政 ( twitter.com)

时政

A Chinese boy’s aspiration: “My grandpa was the director of the Agricultural Development Bank of China, my father is the director of ADBC, my mother is the deputy director of ADBC, and I want to be the director of ADBC in order to inherit our family wealth.” 时政 ( twitter.com)

时政

We have so many departments, but the protests are solely against DOGE. Why is that? btc ( twitter.com)

btc

When carrying almost goes wrong: this is why not everyone should have the right 😳 有趣 ( twitter.com)

有趣

This is Ethan Zuckerman. He is the inventor of pop-up ads and has apologised for unintentionally creating one of the worst forms of advertising and the "millions of hours lost to pop-up ads". 有趣 ( twitter.com)

有趣

How can any rational American — regardless of politics — oppose the argument makes here on cutting the budget deficit in half and increasing economic growth as a result? It’s just basic common sense. btc ( twitter.com)

btc

有趣

The one of s kind aircraft Antonov AN-225 was destroyed in February 2022. It had 88-meter wingspan, six engines, and a landing gear with 32 wheels This is a comparison between the AN-225 and some other planes [source: ] 有趣 ( buff.ly)

有趣

Wait, why are American taxpayers covering 2/3 of the defense costs of Europe? That doesn’t make sense. Defense from who? btc ( twitter.com)

btc

时政

I spoke to someone who knows and now I understand why he is staying in the race. The City has an 8 to 1 matching program for NYC donors. Sliwa got ~$5m of matching funds from the city for his campaign. According to my source, Sliwa’s wife, friends and others are btc ( twitter.com)

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btc

𝕏 is the voice of the people. btc ( twitter.com)

btc

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有趣

The Left is the party of murder btc ( twitter.com)

btc

The beauty of the cat is perfect. 有趣 ( twitter.com)

有趣

时政

时政

Daily abuse of authority by the federal judiciary, acting in stark contrast to the will of the people, is SEVERELY eroding their credibility in the eyes of public. Once gone, it is never coming back. Abuse of judicial authority MUST STOP! btc ( twitter.com)

btc

The Fake News is the enemy of the people!!! btc ( twitter.com)

btc

El Castillo is a Mesoamerican step-pyramid that dominates the center of the Chichen Itza archaeological site in the Mexican state of Yucatán. This is a glimpse of the impressive light show held on the pyramid [read more: ] 有趣 ( buff.ly)

有趣

时政

. Ukraine is at war. And those who are not fighting on the frontline must help fight. All of the country's adrenaline, all of the country's emotions, all of the country's forces must be there - in battles for the sake of the state. For Ukraine. This is the primary… 时政 ( twitter.com)

时政

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Why is half of the ship black and half of it is silver colored?
that's because the bottom as seen from orbital entry is, has a heat shield on it. So the black there is the heat shield and then the core structure of the rocket is a special alloy of stainless steel and that's
btc
( twitter.com )