Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
One barrel of petroleum holds 42 gallons.
20
Scientists aren't sure what color dinosaurs were.
312
Out of all the senses, smell is most closely linked to memory.
146
One cubic foot of gold weighs more than 1,200 pounds!
78
Sound travels fifteen times faster through steel than through air.
134