If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
10
Scientists aren't sure what color dinosaurs were.
312
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
One 75-watt bulb gives more light than three 25-watt bulbs.
57
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16