Although diamond is the hardest substance on Earth, when heated to 763 degrees Celsius (1404 degrees Fahrenheit) it vanishes. A small amount of carbon dioxide is released, but not even ash remains.
In the U.S., one can purchase a three part course to become a certified ghost hunter.
Back in 1919, the Russian transplant pioneer Serge Voronoff made headlines by grafting monkey testicles onto human males.
By weight, the sun is 70 percent hydrogen, 28 percent helium, 1.5 percent carbon, nitrogen and oxygen, and 0.5 percent all other elements.
