Riddle solved: Why was Roman concrete so durable?
An unexpected ancient manufacturing strategy may hold the key to designing concrete that lasts for millennia.
https://t.co/rR6p8z2M5R
Maybe now we can solve the particles/waves observation phenomenon...
Physicists Discover a New Way to 'See' Objects Without Looking at Them
https://t.co/wANy8MCAZv
Distance education began through the use of postcards by Isaac Pitman in 1840
18 more Facts about Distance Education that will Knock Your Socks Off
https://t.co/GfoZya2C0i
All objects, big or small, cast shadows and so do mountains. However, one particular peak displays a peculiar behavior – it cast shadows not only on the ground, but also up in the clouds. This photo of Mt Rainier was captured by Lisa Bishop
[source: https://t.co/eQvh5GEmiq]
17-year-old Juliane Koepcke was sucked out of an airplane after it was struck by lightning in 1971. She fell 2 miles to the ground, was strapped to her seat, and survived 10 days in the Amazon Jungle.
TIL 1822 a stork arrived in Germany with an arrow through its neck. The wood was from Africa, over 3000 miles away. This convinced zoologists that birds migrated in the winter & disproved other theories like underwater hibernation, or transformation into other animals (like mice)
Consider: millions of years ago our antecedents gave a massive sacrifice of their left hemisphere.
We lost a tremendous amount of short term memory and replaced it with Broca’s, Wernicke & the phonological loop.
But why?
So we can—talk.
Thus chimpanzees can do this—we can’t: