What is the thermometer reading of Absolute Zero?

Answer 1

Minus 273 degrees C

Answer 2

And "who was buried in Grant's tomb"?

The thermometer would read 0 (zero) if we could get it down that far. Oh, by the way, the other answers are correct. But the most correct, if there is such a thing, is ZERO degrees Kelvin (K). 0 deg K is absolute zero where all motion due to heat comes to a stop because there is no more heat. In fact, the stopping of all atomic and molecular motion is in fact the definition of 0 deg K, which is why it is the best answer.

But, thus far, all the physicists in the world have been unable to siphon off that last iota of heat so that the molecules and atoms were ABSOLUTELY still (pun intended). Thus, absolute zero remains theoretical until someone can actually reach it.

One more thing, outer space is not at absolute zero. It's average background temperature of 2.7 deg K, less than three degrees above absolute zero, which is left over from the so-called big bang. [See source.]

Answer 3

-273 deg cen

Answer 4

-469 below 0..Farenhiat