- An octopus pupil is rectangular.
- An astronaut can be up to 2 inches taller returning from space (the cartilage disks in the spine expand in the absence of gravity).
- The longest time a person has been in a coma is 37 years.
- Isaac Newton discovered the laws of physics and brought together many important concepts of infinitesimal calculus..
- The most commonly used word in English conversation is 'I'.
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