Vacuum Gauges \ Micron Gauges Principal of Electronic Vacuum Measurement As atmosphere is removed during evacuation the ability to transfer heat by conduction to surrounding air becomes weaker and weaker.
How to start Windows 8 in Safe Mode Safe Mode is a Windows mode that uses only the most basic drivers and programs that are required to start Windows. This mode will also not launch any programs that are set to start automatically when Windows starts.
It has a translucent Safe mode message in lower left corner of all screens. She hasn't done anything to it, no apps or updates or anything. Seems to work okay.