Factual error: In the scene where the Professor Phillip first sees his creation (Flubber), he states that Flubber is 77 degrees Kelvin. Theoretically speaking, 77 degrees Kelvin is extremely cold, about -195 degrees Celsius (or -320 degrees Fahrenheit). The professor was handling Flubber with his bare hand at one point so he should've acquired one heck of a cold burn.

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Factual error: When Robin Williams rides the car above the clouds, he is fine. At a level like that it can be hard to breathe as temperatures are often quite low when above the clouds, mainly below freezing point.

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