CRT televisions operate by shooting electrons at the screen Magnetic fields deflect moving electrons, so placing a magnet near the CRT gives you this neat way to visualize the magnetic field linespic.twitter.com/q1W8lv5Oqh
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You can order the Ferrofluid on Amazon I’m trying to build one. It’s messy
Applied Magnets Magnetic Ferrofluid -2oz- 60ML Bottle, Great for Science Projects https://www.amazon.com/dp/B00126P1NW/ref=cm_sw_r_cp_api_i_gOyeEbW5Z2F4Y …Thanks. Twitter will use this to make your timeline better. UndoUndo
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