Hot answers tagged hardware
It's normal. Many computer components can generate high frequency noise under high load, mostly from power circuits, but fans are usually loud enough to cover them up. The GTX 780 in my desktop does this but I didn't notice it until I installed a liquid cooling system. If you're interested, this has some details of the components that can cause this kind of ...
No, even if you managed to physically connect the camera to the device in that way, iOS would not interact with it as it is an iPod touch without such a camera.
Read the current setting defaults read com.apple.BezelServices dAuto Write defaults write com.apple.BezelServices dAuto -boolean true/false
I would just find some soft-side velcro and cut out a few small circles and call it good as new or if your determined.. Or just do a quick Google search: http://www.powerbookmedic.com/Macbook-Unibody-Feet-Replacement-Set-Black-p-23146.html http://macdudu.en.alibaba.com/product/742059651-218052561/Rubber_Case_Foot_Feet_for_Macbook_Pro_retina_15_A1398.html
As a former Mac Genius, I can tell you it's impossible to buy the feet separately as a replacement. You will have to get the bottom "plate" replaced. If it's under warranty, awesome, if not, it's less than $20 to get.
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