› added 7 years ago

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TIL MIT researchers were able to capture sound from a soundless video of a chip bag using a high FPS camera recording. All sound causes objects to vibrate and using advanced software, they were able to match the vibrations shown in the chip bag to the respective audio frequencies.

Read more news.mit.edu

via reddit.com

ADE7 TIL that the Danish King Harald Blatand ate so many blueberries that his teeth stained blue. “Bluetooth” is named after him because of his ability to unite warring Scandinavian factions, just as Bluetooth unites wireless devices. The Bluetooth logo is also a combination of the Kings Runic initials.
gGb7 TIL Harry Truman held both the highest (at 91%) and tied for the lowest (at 22%) approval ratings since Gallup started compiling them in 1937
5VRVD TIL about composer Henry Cowell's "theory of musical relativity" that says rhythm & pitch exist on the same continuum. He argued that if you speed up a rhythm enough, it eventually becomes a perceivable pitch, implying that tempo & tone are fundamentally the same phenomenon at different frequencies.
6ErxZ TIL that there used to exist a pidgin language based on English and Russian called "Solombala English". It was spoked in 18th and 19th century in Arkhangelsk, Russia
MerRb TIL That the claim about Fleming not wanting to patent penicillin so that the diffusion could spread faster, is false. He didn't have any means to bring it into mass production; besides, he didn't consider himself the inventor, attributing penicillin to nature.