biorhythm.com
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As a NASA mathematician, Katherine Johnson calculated the trajectories of the first American crewed space flights.
John Glenn’s orbital flight. Before his flight, John Glenn specifically asked for her to check the computer’s calculations by hand. On Friendship 7 he became the first American to orbit the Earth.
Age 43 · day 15,884 of life
On this day two of the three curves were positive – strongest: Emotional at +97 %.
The highlighted day is February 20, 1962.
To be clear: these days were deliberately chosen – they are moments of success on which the curves were favourable. It is a fun bit of detective work, not scientific proof. Everyone also achieves great things on “weak” biorhythm days.