Why is my MacBook Pro magnetized?

Why is my MacBook Pro magnetized? I just tilted up my MacBook Pro to look at a piece of paper underneath it, and the lid touched a bottlecap on the table, clinging to it quite strongly. The whole top edge of the laptop (on the outside) is magnetized? What's this from?
Asked by: Guest \| Views: 243

Total answers/comments: 2

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Guest [Entry]

"The magnet in the clamshell activates a switch, in order to let the device know it should go to sleep.

This support article refers to the magnets in the clamshell: http://support.apple.com/kb/TS2917"

Guest [Entry]

"Depending on your model, the magnets are in different locations.

On the older style Aluminum MacBook Pros there are magnets to pull the latches down from above the monitor so it closes securely when you close the lid.

If you are using a Unibody MacBook Pro (current generation) then there are magnets around the display to help keep it closed and to trigger a switch to notify the computer to go to sleep."