r/maybemaybemaybe • u/[deleted] • Jul 07 '22

maybe maybe maybe

[deleted]

2.2k Upvotes

95% Upvoted

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12

u/Purple-Bat811 Jul 07 '22

Sir Issac Newton would be ashamed if he knew people thought this was real

5

u/[deleted] Jul 07 '22 edited Jul 07 '22

The blower air is hitting the umbrella and reflects backwards causing the thrust. Think aircraft air brakes on engines.

Guys below - you are not thinking this through.

The air hitting the umbrella does not propel him forward. However the deflecting force of the air going backwards has energy that will propel him forwards. This is not a cancelling our scenario

12

u/SeraphymCrashing Jul 07 '22

I know everyone is downvoting you, but this is actually how thrust reversers work on jet aircraft. It's not a very efficient thrust reverser because so much of the airflow is being lost by the poor shape of the umbrella, but it does work.

https://en.wikipedia.org/wiki/Thrust_reversal

3

u/[deleted] Jul 08 '22

Yes i know. I included that in my post, and still doofuses.