2001: A Space Odyssey

2001: A Space Odyssey (1968)

1 mistake since 22 Apr '20, 20:20

(11 votes)

Factual error: When Bowman blows the pod hatch and is ejected by the air into the ship's airlock, Newton's First Law dictates that the pod should move in the opposite direction, away from the ship.

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Suggested correction: Already posted and corrected - The pod would be weightless in outer space but it still has mass and inertia. The total change in momentum of Bowman and the air escaping from the pod, applied to a pod with about the mass of medium sized car, would result in the pod moving away at only about 50cm per second. That would be barely noticeable from our point of view, even if the change wasn't immediately corrected by an auto-pilot mechanism, which is feasible. We can calculate the reaction speed of the pod this way : assume a gas volume of 4 cubic metres, a mass for the pod of 2500 kg, a mass for Bowman of 150 kg, an average delta v of 100 m/s for the air in the pod, and a delta v of 10 m/s for Bowman - all of which yields a result of 0.5 m/s, and if air pressure in the pod were lower it would have moved even more slowly.

Dave Bowman: Open the pod bay doors, HAL.
HAL: I'm sorry Dave, I'm afraid I can't do that.

More quotes from 2001: A Space Odyssey

Trivia: The little girl on the picture phone is director Stanley Kubrick's daughter Vivian. (00:27:50)

Larry Koehn
More trivia for 2001: A Space Odyssey

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