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TIL of the Yamato 1, the first working prototype boat to use a Magnetohydrodynamic drive (MHD). Built by Mitsibishi, the ship’s drive electrifies sea water and utilizes magnetic fields to propel itself. The MHD uses no moving parts.

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6E7Zw TIL that an itch on the left side of the body can be relieved by looking into a mirror and scratching the right side of the body (and vice versa)
168gV TIL in the 1920s AT&T built a "telephone pole farm" in Chester Township, New Jersey to test different types of trees and protectant methods. It was also a training ground for technicians to practice climbing.
djbZ TIL that a Japanese construction company completed designs for a 2.5 Mile high skyscraper that can house upto 1 million people, just for some recognition.
e08An TIL The U.S. National Library of Medicine studied children’s posture and found sitting on the floor has a positive effect on posture (Nearly Double) compared to using a traditional chair
N7ow6 TIL in NBA history no team has ever come back to win after trailing 3–0 in a playoff series