You are browsing the archive for 26 February 2009 - Dan's Wild Wild Science Journal.
26 February 2009
The Most Distant Man Made Machine
When I hear a scientist, talking about some astronomical object, and they say something is (for example) 8 billion miles away, I cringe. No doubt, the reporter asked for the distance in miles, or kilometers, because that unit of distance is familiar to most people. Does it really tell you anything? I say no. Yes, it tells you it is very far away, but nothing much more than that. To really understand these distances, …