Thursday, December 23, 2010

Volcanos, the sun and recent climate coolness

Europe has been experiencing unusually cold weather with many flights delayed around the continent. Over here in southern Ontario (Toronto, Canada) we've been experiencing an unusually cold December as well. The environment is a great interconnected web, thus a temperature change can not necessarily be attributed to only one cause, but is likely the result of a series of factors.

Possible contributing factors include the recent large volcanic eruption in Iceland. Click to enlarge this gorgeous picture of the Icelandic volcano (Credit R. Th. Sigurdsson):

Monday, December 13, 2010

How many dimensions are there in the universe?

Theoretical physicists regularly disagree regarding how many dimensions exist in the universe. Some put it at 10 or 11 or 13 dimensions but no one really knows how many dimensions exist in the universe. Some theoretical physicists can be quite passionate about their particular belief in the total number dimensions in the universe even though they know that they don't know what the truth is regarding the true number of dimensions.