In an experiment involving sophisticated superconducting apparatus cooled to within a whisker of absolute zero, and brass weights stuck to an electrical bicycle wheel, physicists recorded a minuscule gravitational tug of 30 quintillionths of a newton on a particle less than a millimetre wide.
What We're Reading
Feb
26
2024
Quantum Physics Makes Small Leap With Microscopic Gravity Measurement, The Guardian
Dec
19
2023
Hints of Elegance in the Physics Governing Snowfall, Physics Today
For atmospheric scientists, snowflake morphology helps determine how the flakes descend through the turbulent atmosphere. Now, using a custom-made snowflake-tracking apparatus installed at a ski resort, Tim Garrett, Eric Pardyjak, and Dhiraj Singh at the University of Utah have amassed a unique data set of the shapes, masses, and accelerations of a half-million flakes. Their analysis hints at an unexpected simplicity in the physics that underlies the motion of solid precipitation.
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