Exploring Science at the California Academy of Sciences

UNIVERSE | SCIENCE | TECHNOLOGY on Instagram: "Did you know? ⚡ Even when high-voltage power lines are buried underground, they still generate magnetic fields. This happens because whenever electric current flows through a conductor, it creates a magnetic field—no matter if the cable is in the air or underground. 🔹 How it works: Buried transmission cables carry massive currents to power cities. These moving electric charges produce circular magnetic fields around the cables, as described by elec

UNIVERSE | SCIENCE | TECHNOLOGY on Instagram: "Invented in 1905 by physicist Heinrich Rubens, the Rubens’ Tube is one of the most beautiful ways to see sound. 🔥🎶 Here’s how it works: A long metal tube is filled with flammable gas and has tiny holes along the top. When the gas is ignited, the flames are normally all the same height. But when sound waves are introduced into the tube, they create pressure variations inside. High pressure areas push out more gas → taller flames Low pressure areas

U.S. Spacewalk Preview News Conference (Jan. 6, 2026)

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