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12
votes
7answers
41k views

How accurate are iOS apps that measure heart rate?

There are apps like Instant Heart Rate and Cardiograph which claim to be able to measure heart rate by reading color changes on arterial pressure change. They generally require you to place your ...
4
votes
1answer
5k views

Can I get S.M.A.R.T. support on external hard drives?

Disk Utility reports the S.M.A.R.T. Status as not verified for external disks, and by default Mac OS X only seems able to access S.M.A.R.T. information on internal hard drives. Is there a way to get ...
2
votes
1answer
4k views

Speeding up switching between multiple desktops (speed up or remove transition) [duplicate]

Possible Duplicate: How can I disable animation when switching desktops in Lion? I am a PC user who switches between many applications and now I use many full screen apps on the Mac (aka ...
0
votes
1answer
1k views

Battery indicator is showing “Service Battery” notification

I upgraded my macbook RAM, but after that when I switched on my MAC it showed my "Service Battery" indicator in battery menu. I installed Battery Health application and it showed following stats. ...