Pumice is the only rock that floats on water.
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Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Sound at the right vibration can bore holes through a solid object.
134
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
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Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Hot water can freeze faster than cold water.
181
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Scientists are working on a portable spray-on-skin that can heal severe wounds in just a few minutes.The spray mainly contains important proteins that can reprogram the injured cells to become stem cells, and back to young uniformed skin cells. So far they were able to accelerate healing process from 12 weeks to 21 days with a similar approach.
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