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kbwh
Gjest
Ikke læren om romper, men litt tankeføde fra Linns nettsted:
To pick up the music on a turntable, the needle follows the record grooves for information stored in the groove walls. Movements so minute, they are measured in microns.
Its when you scale the groove world up to inches that things start to get pretty hair raising.
Suddenly you are in a deep crevice. The walls are undulated. Approaching at an alarming speed is a bobsled. As it hurtles through the passage it has to pick up tiny pieces of information.
The bobsled is, or course, the needle.
And to pick up a deep organ note it has to swerve 10 feet 6 inches.
For a high violin note its less than an inch.
A difference which may not seem staggering in itself. Until you stop to consider that the needle is travelling 6 miles per second. And that the pivot point of the lever controlling it is 4 miles away.