› added 2 months ago

15

TIL that a cloud weighs about one million tons — it floats because air is even lighter.

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OlN7 TIL the man that figured out how old Planet Earth really is was the same one who discovered world-wide environmental lead contamination which eventually lead to leaded gasoline’s banning.
R7eJw TIL Nikola Tesla was an ardent follower of Vedanta and frequently used Sanskrit terminology in his works. His meeting with the Hindu monk Swami Vivekananda in 1896, facilitated by actress Sarah Bernhardt, triggered his lifelong interest in the Vedas and Indian philosophy.
pYdRp TIL At the start of World War 2 the tops of pillar post boxes were painted with an invisible gas detection paint that would turn yellow in the event of a gas attack.
Enk0 TIL that Coca Cola is cheaper than clean water in Tanzania and Zambia.
xV6xo TIL the caduceus symbol mistakenly used by many American medical companies is actually associated with thievery and commerce, the true medical symbol is the similar looking Rod of Asclepius.