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TIL of a website that gives online piano lessons for free. Hoffman Academy – Online Piano Lessons for Free

Read more hoffmanacademy.com

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mxpRE TIL that during D-day, the USS Texas intentionality flooded a part of itself to help provide inland fire support. It flooded the starboard torpedo blister to list the ship 2 degrees, giving the ship’s guns enough elevation to continue its mission.
YplRW TIL of the 1811-1812 New Madrid Earthquakes, which were powerful enough to cause the Mississippi River to flow backwards for a few hours.
VXK0 TIL that the “pause symbol” on your remote control is derived from the musical notation called a “Caesura,” which calls for a complete pause in a composition …
oBWXY TIL smartwatches measures blood preassure by emitting light to the skin and reading how much light is reflected back; as the heart pumps blood, it causes a variation in blood volume on the skin and can be detected by change in light absorption, a not-so-new technology called photoplethysmogram.
e0BNE TIL the red juice oozing out of your steak is not blood, it's myoglobin, a protein that’s found in muscle tissue