People in the Middle Ages thought the Earth was flat,
that bees were little birds and that
evil spirits lived inside Brussel sprouts.
Until the 1920s, the universe was believed
to consist only of our galaxy.
When I was in elementary school,
I thought
camels stored water in their humps,
that
carrots would improve my eyesight and that
an earthworm cut in a half would grow into two new ones.
Before
1991 there were 9 planets in the solar system.
Before
2004 eight glasses of water a day would keep you hydrated,
before
2005 stress could give you an ulcera,
before
2006 you would experience taste in different parts of the tongue.
Last year
scientists discovered the Great Barrier Reef has been bleaching
for the past 400 years.
What else may we have got wrong?