The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Sound travels fifteen times faster through steel than through air.
134
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