Balsa wood is classified as a hard wood!
41
For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
34
German chemists made a replica of a trophy the size of one molecule.
68
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Sound travels about 4 times faster in water than in air.
408
Neanderthal man had a brain capacity 100cc larger than modern man's.
50