Spay for CD

Actually, I find him trite and defensive. He could have explained that the atoms of magnetic material like magnets are aligned N to S or whatever and that nuclear forces are the STRONGEST force or whatever. Whereas as gravity is the WEAKEST force. This attitude of his is why he was ostracized when he was a member of the Rogers Commission investigating the Challenger disaster. I knew the guy who ostracized him, who was the director of the commission.

None of which explains OF WHAT magnetism is MADE, but-  "All you need to know is that demagnetizing CDs or LPs improves the sound, or interconnects." and: AMEN(no offence)!  Happy listening!

It’s made of nothing. It’s a force. When you measure magnetic field you measure the strength of the field. You can forget about everything else. When you pull a car with a rope what is the force composed of? Nothing.

So- you’re measuring, "Nothing"? That clears things up. 😬  Keep digging(I love it)!

That’s not what I said. When you pull a car and measure the force what are you measuring? What is it made of? Answers at 11.