Views : 838,880
Genre: Science & Technology
Date of upload: Aug 26, 2023 ^^
Rating : 4.81 (1,080/21,669 LTDR)
RYD date created : 2024-05-22T17:46:50.925069Z
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Top Comments of this video!! :3
12:02 The "jellyfish" in the video is on launch, while the audio says it is a descent. The video shows 9 engines firing during launch, and the exhaust trailing downward from the rocket. On re-entry, the re-entry burn only fires 3 of the booster's Merlin engines, and the exhaust trail is soon above the descending booster.
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I like the fact that the video shows the LEGO Saturn V instead of the real one at 2:14 !
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The modern reaction to von Braun always confuses me. It's not like his previous employment was ever a mystery. Nor was the reason he was spared serious consequences, he could be put to useful work. But hey it's the 21st century and feelings are what's important. After all we happily used RD180s despite their Soviet origin.
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I believe your legacy aerospace companies, Boeing, Lockheed/Martin and Northrup Grumman are not interested in reusable rockets and why should they? These companies were and still are making a fortune off government cost plus contracts. Look at the Boeing and ULA SLS rocket they have taken about a decade to build and received about 23 billion for US government. This 23 billion does not include the capsule which another 20 billion. And to top it off, SLS will cost about 4 billion per mission. So question is why would these legacy aerospace companies be interested in a reusable rocket when they are making BILLIONS by not designing one.
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there has always been rocket engineers who wanted to do reusable rockets, but the companies they worked for didn't want to know because they thought the gravy train would end. Elon comes along with the idea that rockets should be reusable and those engineers flock to him, and low and behold we have reusable first stages and soon completely reusable rockets. i would have loved to hear those exit interviews where they were told they would fail and lose their jobs, only to see them succeed.
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"If things are Not failing, you are Not innovating enough!", is THE definition of Research & Development. I was one of those "do All" mechanics in a Very Large Seafood Company in SE Alaska. One day I'd be building custom Can Tracks that twisted & rerouted their direction or setting up the programming for their "in-motion" weigh machines to Diving for an inspection of a Company Fishing Vessel that had struck bottom. I was a Millwright by definition but I Really began to learn and expand my thinking when the Company hired a R&D group out of Seattle to re-invent their 1930's vintage Salmon Canning machines.
There were only 5 in the Group, the Mad Scientist Genius Inventor at the head of the group and a Very Talented group including a mechanical draftsman, a Machinist, an Electrical Engineer and we stole a Boeing Systems Program chief engineer. I was the Fabricator and Operator. But I must say, That was one of the Best learning experiences of my life !
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@11:29 The biggest breakthough which allows Falcon 9 boosters to land with it's engines is MEMs Gyroscopes, the kind which orients your phone, and can also control the booster accurately enough to land which prior rocket developers simply didn't have. Early gyros and computers were never sophisticated enough to do this.
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8 months ago
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