My reaction to the video COVID-19 MAGNET CHALLENGE, WITH A COMPASS, ON ROOF

First published at 20:52 UTC on July 7th, 2021.

An introduction to Ionic_liquid#Magnetic_ionic_liquids, Paramagnetism, Magnetofection, and Magnetorheological_fluid
Iron oxide nanoparticles are iron oxide particles with diameters between about 1 and 100 nanometers. The two main forms are magnetite …

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