Corrected entry: While Dave Bowman & Frank Poole are in the pod bay they lean against the workbench much as anyone would on Earth, yet the pod bay is a weightless environment.
Corrected entry: Counter to a previous claim of factual error . In various scenes on both the Discovery spaceship and the Pod, angular momentum CAN be preserved without rotating the whole Discovery ship, as was claimed, if there were unseen counter-motions (as in a possible "sub floor" rotating in the opposite direction as the visible floor). The same principle can explain how the pod rotates without any visible thrust from, for example, gas jets. Rotation can be all mechanically achieved, with motors, and all angular momentum is preserved as the ship avoids appearing to rotate against the background stars.What we see is all plausibly accurate according to Newtonian Mechanics.
Corrected entry: If you take the letters in the computer's name (HAL), and then the next letter in the alphabet after each one, you get IBM. Stanley Kubrick denied it was on purpose but it is still kind of neat.
Corrected entry: In the famous scene where the ape throws a bone into the sky, in one shot the bone at first revolves anti-clockwise and then in the next shot, just before the jump cut to the shot of the spaceship, it now revolves clockwise.
Corrected entry: In the beginning of the film where we see the ape-men, it looks as if they are wearing Converse All-Star type gym shoes that have been painted to look like feet. Perhaps the rocky terrain was too hard on the costumed actors' feet.
Corrected entry: On Discovery, artificial gravity is created by a spinning centrifuge. This is fine, but crew members are shown climbing a ladder into the center, where they are weightless. In reality, they would experience a quite large force perpendicular to the ladder. This is because they still have momentum from traveling with the floor of the centrifuge, but the speed of the higher steps is lower, and the speed in the center is zero.
Corrected entry: During the scene when the photographer is taking photographs of the scientists next to the monolith on the moon, a flying insect e.g. a fly or moth, can quite be briefly seen against the dark background of the monolith itself.
Corrected entry: In the scenes with the lunar shuttle and the lunar buggy, we see a swirling cloud of dust as they are touching down. The dust would only swirl around like this within an atmosphere; it would not do this on the airless moon. (00:40:00 - 00:50:40)
Corrected entry: The initial scene shows a desert with Brazilian tapirs grazing in the background. Tapirs have never been recorded living in any sort of desert, either through live sightings, secondary evidence, or fossil record.
Corrected entry: At the beginning of the TMA-1 excavation scene, studio lights can be seen reflecting off the tops of the astronauts' helmets (note the position of the sun low on the horizon versus the camera's perspective).
Corrected entry: When Heywood Floyd was talking to his daughter on the video-phone, the camera at home was moving slightly (up, down and sideways) to follow the movements of the girl. In reality, the phone camera would have been in a fixed position.
Corrected entry: In the scene where Dave is replacing the AE35 unit at the antenna he is steadying himself only with his hand as he does his work. In reality every motion he made would have a equal opposite reactions so he would have been twisting in space and unable to do a basic task. He should be more firmly anchored to the antenna to be accurate.
Other mistake: There is something drastically wrong with the design of the spherical 'Aries' moon shuttle. Some seats and many fixtures are 'upside down' relative to the up-down orientation of the shuttle itself, and we see loose food trays and equipment about the place as if this is routine. But - the shuttle is designed to land on the moon. What happens then? The moon has gravity, remember? There are going to be quite a few very disgruntled people dangling upside down like spiders, and there will be loose gear (and perhaps a stewardess or two) bouncing about all over the place. It is not a matter of stowing loose gear or lying flat on landing - some parts of the shuttle are upside down relative to others, which is why the stewardess has to do that famous 180 degree upside down walk. Whichever way you look at it the shuttle is going to encounter serious problems when it reaches a gravity well, which will occur whenever the engines are fired up, never mind landing on the moon.
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