Comment

Comment by Ramon Martinez on February 21, 2013 at 1:45pm

Thanks for featuring the data visualization "Registered meteorites that has fallen on Earth" at analyticbridge.com

I wanted to point out that this data visualization was produced & authored by Ramon Martinez using data from The Meteoritical Society. It is not produced by The Meteoritical Society as stated in this blog post . 

Comment by Vincent Granville on February 20, 2013 at 7:06pm

Highly populated areas seem more heavily hit, but it's because meteorites in these areas are more easily detected. As inhabited areas grow, the yearly number of meteorites will increase over time. But we need to keep in mind that this is an artifact inherent to the dataset itself. It's a data bias.

Would be interested to see this info visually summarized in 5 dimensions, as follows:

• 2 dimensions for the location
• 1 dimension for the size (represented by radius)
• 1 dimension for the type (represented by color)
• 1 dimension for time: turning this static image into a video, where each second represent (say) one year

Anyway, this data set should help answer two questions, using sound statistical analysis:

• risk of hitting a populated area
• number of undetected meteorites, with trend

Comment by Vincent Granville on February 20, 2013 at 7:01pm

I actually touched a real meteorite today (see picture below), at the Pacific Science Center in Seattle. Was very, very heavy.