30 years ago, you could buy a lifetime, unlimited first-class travel pass with American Airlines for $250,000.
14
Sound travels about 4 times faster in water than in air.
408
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
Only about 2% of the world population has green eyes.
36
Romans used a plant called Silphium as contraception. They had so much sex that they drove it into extinction.
24
'⸮' is a punctuation mark that was first proposed in the 1580s to denote sarcasm or irony.
17
Women average seven farts a day and men about 12, experts say.
26