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June 22, 2021 Archives
Tuesday, June 22, 2021
CONTEXT: UFOs—Harvard's Dr Avi Loeb on Identifying the Unidentified
Dr Loeb's book, Extraterrestrial, discusses the evidence supporting the hypothesis that interstellar object 1I/‘Oumuamua may be a discarded light sail from an alien-built spacecraft. Here he argues that UFOs are a phenomenon which can, and should, be investigated by science, not dismissed because one of the many possible explanations (alien spacecraft) is unpalatable to “experts”.
Posted at
13:36
THE HAPPENING WORLD: Mars Helicopter Ingenuity Completes Eighth Flight
Another successful flight for Ingenuity! The#MarsHelicopter completed its 8th flight on Monday. It flew for 77.4 seconds and traveled 160 meters to a new landing spot about 133.5 meters from @NASAPersevere, capturing its own shadow in this image. pic.twitter.com/cDY3etLjTf
— NASA JPL (@NASAJPL) June 22, 2021
Posted at
12:51
TRACKING WITH CLOSEUPS: From 1956—Ray Bradbury on Groucho Marx's “You Bet Your Life”
Posted at
12:30
TRACKING WITH CLOSEUPS: Perfect Euler Brick
Here's a surprisingly unsolved problem in math:
— Fermat's Library (@fermatslibrary) June 21, 2021
Proof of the existence of the perfect Euler brick - a rectangular parallelepiped with integer-length edges, integer-length face diagonals, and an integer-length body diagonal. pic.twitter.com/sznMxGdQQX
Here is more about Euler bricks.
Posted at
11:39