" "..CD spinning at around 500rpm (centre) to 200rpm (edge).."
Interesting ideas about the laws of physics there Jimmy-boy... so the centre of the disc (which is fairly solid and not actually much like a fluid at all) spins round 2.5 times for every revolution the edge of the CD performs? Wrong is soo many ways..
perhaps you are thinking of angular velocity "
YOU FAIL.
He was thinking of the well-known technique that CD players use to maintain constant linear velocity under the head: they spin the disc faster when reading the regions near the centre than when reading the regions near the edge.
Register
Luke's rubbish.
" "..CD spinning at around 500rpm (centre) to 200rpm (edge).."
Interesting ideas about the laws of physics there Jimmy-boy... so the centre of the disc (which is fairly solid and not actually much like a fluid at all) spins round 2.5 times for every revolution the edge of the CD performs? Wrong is soo many ways..
perhaps you are thinking of angular velocity "
YOU FAIL.
He was thinking of the well-known technique that CD players use to maintain constant linear velocity under the head: they spin the disc faster when reading the regions near the centre than when reading the regions near the edge.