Walkabout the Galaxy
supernova; population III star; DART; Dimorphos
Astrophysics and Astronomy | Physics
Astronomers have new evidence of the gaseous remnants of the supernova of a population III star from just 700 million years after the big bang. Speaking of big bangs, DART smacked Dimorphos and produced a long trail of debris from the tiny asteroid, and Mercury reveals a surprisingling dynamic surface. Tune in for space news near and far and Nobel prize trivia with your astroquarks.
Proving the rotation of the earth since 1851, Leon Foucault's bob on a wire is also a handy demonstration that the earth is a sphere. With its latitude dependent rotation period, take a Foucault pendulum with you on your planetary explorations to determine your location, and it doubles as a handy timekeeping device. Available in lengths from 10 to 30 meters, the Foucault pendulum provides a laid back focus for your next party or event, giving you plenty of time to ponder the connection of a simple pendulum, to geometric phases and parallel transport. Custom periods are available for an additional charge. The Foucault pendulum, exact time for life (Omega).
© Joshua Colwell, All Rights Reserved
Length of Episode
Colwell, Joshua; Dove, Adrienne; and Sargeant, Hannah, "Pop III!" (2022). Walkabout the Galaxy Podcast. 220.