More about Heat (15)

1-11-1993 | Dur personal comfort is determined not so much by the ambient temperature as by the relative humidity of the air surrounding us.

1-11-1992 | Temperature is a physical property of a body that determines the direction of heat flow when the body is brought into contact with another...

1-07-1992 | Although newer types of solar cell have come to the fore recently, amorphous cells are bound to be with us for some time to come, mainly...

1-07-1990 | A standard voltage regulator Type 7805 is inexpensive and easily available, but its maximum current of 1 A can at times prove a handicap....

1-07-1990 | The tiny a.f. power amplifier presented here provides an output of up to 250 mW and may be used in a number of applications, for instance,...