- Grasshoppers have white blood.
- Plastic bottles were first used for soft drinks in 1970.
- Mathematical developments increased rapidly around the time of the Italian Renaissance in the 16th century and continued through the scientific revolution of the 17th and 18th centuries, becoming increasingly abstract in the 19th and 20th centuries..
- Greeks constructed aesthetically pleasing buildings and artworks based on the golden ratio of approximately 1.618..
- Sound travels 10 times faster through granite than air.
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