Author Topic: Question: how did they slow down in space?  (Read 3304 times)

Online Abaddon

  • Jupiter
  • ***
  • Posts: 712
Re: Question: how did they slow down in space?
« Reply #30 on: January 13, 2017, 02:08:09 PM »
Thinking that the LM would pass through its own exhaust is the same thing as thinking you can shoot yourself simply by firing a bullet in the same direction as you are traveling.
Yep. It is no different than being in the back of a plane and firing a gun forward. Will the bullet simply hover? That is one of those rare occasions where "common sense" is correct. Of course it will not.

Somehow, the claimants are unable to figure this out. 

Offline ka9q

  • Neptune
  • ****
  • Posts: 2833
Re: Question: how did they slow down in space?
« Reply #31 on: September 18, 2017, 08:24:50 PM »
Thinking that the LM would pass through its own exhaust is the same thing as thinking you can shoot yourself simply by firing a bullet in the same direction as you are traveling.
Well, you could if you were facing a very strong wind. Like if you were sitting on the nose of the space shuttle during early launch.

I remember grimacing when I heard, during a live Columbia post-accident press conference, one of the mission managers claim that a piece of mere foam was much too light to possibly damage the orbiter during launch. Even engineers who should know better can suffer failures of intuition.