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<blockquote data-quote="Fever" data-source="post: 1918958" data-attributes="member: 29022">Los Tweets de Elon Musk en respuesta <s>a la mojada de oreja</s> al logro de Blue Origin:&quot;Congrats to Jeff Bezos and the BO team for achieving VTOL on their booster&quot;&quot;It is, however, important to clear up the difference between &quot;space&quot; and &quot;orbit&quot;, as described well by <a href="https://t.co/7PD42m37fZ">https://what-if.xkcd.com/58/</a>&quot;&quot;Getting to space needs ~Mach 3, but GTO orbit requires ~Mach 30. The energy needed is the square, i.e. 9 units for space and 900 for orbit.&quot;&quot;Jeff maybe unaware SpaceX suborbital VTOL flight began 2013. Orbital water landing 2014. Orbital land landing next. <a href="https://t.co/S6WMRnEFY5">https://m.youtube.com/watch?v=2t15vP1PyoA…&quot;</a>&quot;But credit for 1st reusable suborbital rocket goes to X-15 <a href="https://t.co/LSb0f8FLJd">https://en.m.wikipedia.org/wiki/North_American_X-15…</a> And Burt Rutan for commercial <a href="https://t.co/TGWlNjsyQz">https://en.m.wikipedia.org/wiki/SpaceShipOne…&quot;</a></blockquote>

[QUOTE="Fever, post: 1918958, member: 29022"] [SIZE=5][B]Los Tweets de Elon Musk en respuesta [S]a la mojada de oreja[/S] al logro de Blue Origin:[/B][/SIZE] "Congrats to Jeff Bezos and the BO team for achieving VTOL on their booster" "It is, however, important to clear up the difference between "space" and "orbit", as described well by [URL='https://t.co/7PD42m37fZ']https://what-if.xkcd.com/58/[/URL]" "Getting to space needs ~Mach 3, but GTO orbit requires ~Mach 30. The energy needed is the square, i.e. 9 units for space and 900 for orbit." "Jeff maybe unaware SpaceX suborbital VTOL flight began 2013. Orbital water landing 2014. Orbital land landing next. [URL='https://t.co/S6WMRnEFY5']https://m.youtube.com/watch?v=2t15vP1PyoA…"[/URL] "But credit for 1st reusable suborbital rocket goes to X-15 [URL='https://t.co/LSb0f8FLJd']https://en.m.wikipedia.org/wiki/North_American_X-15…[/URL] And Burt Rutan for commercial [URL='https://t.co/TGWlNjsyQz']https://en.m.wikipedia.org/wiki/SpaceShipOne…"[/URL] [/QUOTE]

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