Water Doesn’t Destroy Magnets — But They Can Be Demagnetized

Rhett Allain
5 min readJan 12, 2024
Photo:Rhett Allain. Iron filings near a magnet showing the magnetic field.

It’s no surprise that Donald Trump just says stuff to try and make a point. For him, it doesn’t matter if it’s true or not but just that it fits with his current theme. In this case, the idea was that the military was wasting money on new technology. In particular, the Electromagnetic Aircraft Launch System (EMALS). This is a new way to push aircraft on a carrier to get them up to…

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Rhett Allain

Physics faculty, science blogger of all things geek. Technical Consultant for CBS MacGyver and MythBusters. WIRED blogger.