Re: Learned a new word today
Posted by silverfox
04 November, 2009 10:38
Following on from Yotta, above, the word Googolplex came up on last night's Horizon programme about blackholes.
As in: "In a separate article, Page shows that the number of states in a black hole with a mass roughly equivalent to the Andromeda Galaxy is in the range of a googolplex."
A googol is a number equal to 10 to the power of 100 (ie, a 1 with 100 zeros following it). Written out explicitly,
A googolplex is the number 10 raised to the power of a googol of zeros.
=10 to the power of
One googol is also presumed to be greater than the number of hydrogen atoms in the observable universe. Carl Sagan estimated that writing a googolplex in numerals (i.e., "10,000,000,000...") would be physically impossible, since doing so would require more space than the known universe occupies.
Yet, much larger still is Graham's Number perhaps the largest natural number mathematicians actually ever talk about.
(Edited as the posted page didn't reproduce the raised power symbols properly)
Edited 2 time(s). Last edit was 2009:11:04:10:46:58 by silverfox.