› added 5 years ago

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TIL that despite being studied since its discovery in 1906, scientists have yet to rule out a germ origin for Alzheimer's disease. The infectious hypothesis could explain why neurosurgeons are twice and a half more likely to die from it than the general population.

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xVbNb TIL that most of Earth’s oxygen comes from ocean plants like algae and phytoplankton.
G804 TIL a tuition-free coding school in Silicon Valley is rated #1 in the world and accepts 10,000 students every year for free
WkGro TIL That the world's largest largemouth bass ever caught is not actually the current world record because the fisherman "foul hooked" the bass (caught it by hooking it accidentally).
BrlnD TIL Octopuses are immune to the stings of various types of jellyfish. They know this and will often rip off the stings of man-o-war (species closely related to jellyfish) and use them as whips to defend themselves from larger predators.
Br9pK TIL Americans purchase approximately $6.5 billion in greeting cards each year. Birthday cards, followed by sympathy cards, are the most popular.