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Plane geek stuff

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  • F F ES Sitecore

    Munchies_Matt wrote:

    It is wind resistance that is the problem

    So why doesn't NASA just launch rockets on still days?

    M Offline
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    Munchies_Matt
    wrote on last edited by
    #9

    Er, do you know what the escape velocity is, the direction of travel, and what the average wind vector on planet earth? Now compare them. :)

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    • C CodeWraith

      But that was not Newton who said that. It was Einstein.

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      R Giskard Reventlov
      wrote on last edited by
      #10

      You need to come back down to earth.

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      • M Munchies_Matt

        "in space without gravity it gets a little easier to go faster" Who writes, and edits, this crap? Gravity? It is wind resistance that is the problem in the atmosphere. Earths gravity extends well out into space!

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        Daniel Pfeffer
        wrote on last edited by
        #11

        Calm down. Don't you know that the only difference between a "science" reporter and an ordinary reporter is that the "science" reporter can count to 21 without getting arrested for indecent exposure? :D

        If you have an important point to make, don't try to be subtle or clever. Use a pile driver. Hit the point once. Then come back and hit it again. Then hit it a third time - a tremendous whack. --Winston Churchill

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        • M Munchies_Matt

          Er, do you know what the escape velocity is, the direction of travel, and what the average wind vector on planet earth? Now compare them. :)

          C Offline
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          CodeWraith
          wrote on last edited by
          #12

          Munchies_Matt wrote:

          velocity

          Munchies_Matt wrote:

          wind vector

          Munchies_Matt wrote:

          direction of travel

          And that's the way the Falcon made the Kessel run in less than 12 parsecs. :-)

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          • M Munchies_Matt

            Er, do you know what the escape velocity is, the direction of travel, and what the average wind vector on planet earth? Now compare them. :)

            R Offline
            R Offline
            R Giskard Reventlov
            wrote on last edited by
            #13

            Escape velocity[^] Putting all the pedantism aside, still marvelous achievements.

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            • M Munchies_Matt

              Er, do you know what the escape velocity is, the direction of travel, and what the average wind vector on planet earth? Now compare them. :)

              F Offline
              F Offline
              F ES Sitecore
              wrote on last edited by
              #14

              Just do it when there is no wind. Can't believe NASA hasn't thought of this. Oh wait....maybe it's air resistance that's the problem, not wind resistance... :)

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              • F F ES Sitecore

                Just do it when there is no wind. Can't believe NASA hasn't thought of this. Oh wait....maybe it's air resistance that's the problem, not wind resistance... :)

                C Offline
                C Offline
                CodeWraith
                wrote on last edited by
                #15

                And possibly the garish color[^] that your craft gets...

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                • R R Giskard Reventlov

                  Escape velocity[^] Putting all the pedantism aside, still marvelous achievements.

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                  Duncan Edwards Jones
                  wrote on last edited by
                  #16

                  R. Giskard Reventlov wrote:

                  Putting all the pedantism pedantry aside,

                  :-D

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                  • C CodeWraith

                    Munchies_Matt wrote:

                    velocity

                    Munchies_Matt wrote:

                    wind vector

                    Munchies_Matt wrote:

                    direction of travel

                    And that's the way the Falcon made the Kessel run in less than 12 parsecs. :-)

                    L Offline
                    L Offline
                    Lost User
                    wrote on last edited by
                    #17

                    CodeWraith wrote:

                    less than 12 parsecs

                    It needs to be fast as there aren't any toilets on board. Weirdly enough no spaceships in Star Wars seem to have any conveniences.. :~

                    Now is it bad enough that you let somebody else kick your butts without you trying to do it to each other? Now if we're all talking about the same man, and I think we are... it appears he's got a rather growing collection of our bikes.

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                    • L Lost User

                      CodeWraith wrote:

                      less than 12 parsecs

                      It needs to be fast as there aren't any toilets on board. Weirdly enough no spaceships in Star Wars seem to have any conveniences.. :~

                      Now is it bad enough that you let somebody else kick your butts without you trying to do it to each other? Now if we're all talking about the same man, and I think we are... it appears he's got a rather growing collection of our bikes.

                      C Offline
                      C Offline
                      CodeWraith
                      wrote on last edited by
                      #18

                      And since a parallax second (parsec) is a unit of length (and not of time), it must be defined as the distance to the nearest toilet. :-)

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                      • C CodeWraith

                        You need to reach at least 11000 m/sec to reach the moon and a little more if you want to go anywhere in the solar system. Was that really so new to you? That's one of the greatest technical problems, because rockets must burn insane amounts of fuel in a very short time to reach at least the minimum velocity.

                        M Offline
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                        Mel Padden
                        wrote on last edited by
                        #19

                        Sure I did, I just like it when a random news report makes me remember. I also wasn't aware that there was something atmospheric faster than the X-15, it's been a while since I was totally clued up about this stuff.

                        One morning I shot an elephant in my pajamas. How he got in my pajamas, I don't know.

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                        • M Munchies_Matt

                          "in space without gravity it gets a little easier to go faster" Who writes, and edits, this crap? Gravity? It is wind resistance that is the problem in the atmosphere. Earths gravity extends well out into space!

                          J Offline
                          J Offline
                          Joan M
                          wrote on last edited by
                          #20

                          Then it's easy... just wait for non windy days... :rolleyes:

                          https://www.robotecnik.com freelance robots, PLC and CNC programmer.

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                          • C CodeWraith

                            And possibly the garish color[^] that your craft gets...

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                            Nelek
                            wrote on last edited by
                            #21

                            Is that the new camouflage painting? Or is it that the quote of women in leading positions has reached the military as well? ;P :laugh: :laugh: :laugh: :laugh: :laugh: :laugh: :laugh:

                            M.D.V. ;) If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about? Help me to understand what I'm saying, and I'll explain it better to you Rating helpful answers is nice, but saying thanks can be even nicer.

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                            • M Mel Padden

                              http://edition.cnn.com/videos/tech/2015/06/05/high-speed-strike-weapon-hypersonic-jet-orig.cnn[^] The bit at the end about the fastest manmade objects ever had me geeking out.

                              One morning I shot an elephant in my pajamas. How he got in my pajamas, I don't know.

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                              Nelek
                              wrote on last edited by
                              #22

                              The theory explained in the book "Limit" is way cooler.

                              M.D.V. ;) If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about? Help me to understand what I'm saying, and I'll explain it better to you Rating helpful answers is nice, but saying thanks can be even nicer.

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                              • D Duncan Edwards Jones

                                R. Giskard Reventlov wrote:

                                Putting all the pedantism pedantry aside,

                                :-D

                                R Offline
                                R Offline
                                R Giskard Reventlov
                                wrote on last edited by
                                #23

                                Duncan Edwards Jones wrote:

                                Putting all the pedantism pedantry aside,

                                pedantism - definition of pedantism in English | Oxford Dictionaries[^] :-D :-D

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                                • M Mel Padden

                                  http://edition.cnn.com/videos/tech/2015/06/05/high-speed-strike-weapon-hypersonic-jet-orig.cnn[^] The bit at the end about the fastest manmade objects ever had me geeking out.

                                  One morning I shot an elephant in my pajamas. How he got in my pajamas, I don't know.

                                  W Offline
                                  W Offline
                                  W Balboos GHB
                                  wrote on last edited by
                                  #24

                                  The narrator got it a bit wrong about why it's easier to go faster in space. Sure, gravity, as he claims, would be an obstacle IF one were opposing it, but the real hero (or lack thereof) is that there's no atmosphere to (1) slow the vehicle down, and (2) heat the vehicle up. It would go even slower under water . . .

                                  Ravings en masse^

                                  "The difference between genius and stupidity is that genius has its limits." - Albert Einstein

                                  "If you are searching for perfection in others, then you seek disappointment. If you are seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010

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                                  • N Nelek

                                    Is that the new camouflage painting? Or is it that the quote of women in leading positions has reached the military as well? ;P :laugh: :laugh: :laugh: :laugh: :laugh: :laugh: :laugh:

                                    M.D.V. ;) If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about? Help me to understand what I'm saying, and I'll explain it better to you Rating helpful answers is nice, but saying thanks can be even nicer.

                                    C Offline
                                    C Offline
                                    CodeWraith
                                    wrote on last edited by
                                    #25

                                    No, that's a X-15 covered with ablative heat protection, most probably before the flight.

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                                    • R R Giskard Reventlov

                                      Escape velocity[^] Putting all the pedantism aside, still marvelous achievements.

                                      M Offline
                                      M Offline
                                      Munchies_Matt
                                      wrote on last edited by
                                      #26

                                      18,000 mph if memory serves me correctly. Puts a bit of wind into perspective eh? :)

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                                      • F F ES Sitecore

                                        Just do it when there is no wind. Can't believe NASA hasn't thought of this. Oh wait....maybe it's air resistance that's the problem, not wind resistance... :)

                                        M Offline
                                        M Offline
                                        Munchies_Matt
                                        wrote on last edited by
                                        #27

                                        air+velocity=wind HOw fast is a rocket going? :)

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                                        • J Joan M

                                          Then it's easy... just wait for non windy days... :rolleyes:

                                          M Offline
                                          M Offline
                                          Munchies_Matt
                                          wrote on last edited by
                                          #28

                                          air doesnt have any resistance until it has velocity relative to the object whereupon it is wind. ;P

                                          J 1 Reply Last reply
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