It depends on the chipset you're talking about. Generally newer cards can go up to about 80 degrees celcius and remain safe. I'd say anything 70 degrees or below and you're fine. Oh and you're perfectly fine with your temperature dropping when you're out of the game. That's a good thing really since the graphics card isn't rendering anything to the display whilst you're tabbed out.
upâ¢stream. 1. toward or in the higher part of a stream; against the current. 2. directed or situated upstream. 3. against or opposite to the direction of transcription, translation, or synthesis of a DNA, RNA, or protein molecule.
stream flow = velocity x cross sectional area. To measure velocity a float (orange peel) will be used to determine how fast the water is flowing. To calculate the cross sectional area of the stream, a stadia rod will be used to measure water depth at 1-foot intervals across the width of the stream (Figure 5-3). Procedures for determining stream flow: Pick a 20-foot long section of the stream that is straight and of uniform width.