- 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 center of the Sun is approximately 15 million C (27 million F).
- The average life span of a mosquito is 2 weeks.
- The Greek national anthem has 158 verses.
- Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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