Max Planck Institute for the Science of Light. "Towards the quantum of sound." ScienceDaily. ScienceDaily, 18 January 2024. <www.sciencedaily.com / releases / 2024 / 01 / 240118150744.htm>.

From sound "canyons" to temperature inversion layers, we looked at the factors that influence how sound moves in the city.

Scientists at the Max-Planck-Institute for the Science of Light (MPL) have now demonstrated a particularly efficient way in which photons can be entangled with acoustic phonons.

Phil builds a small drag racer in the lab that uses the inertia of its wheels to move. Then he tries to max it out. The final experiment involves a jacked up car and a large frame with Phil riding it.