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40 foot a year
9,000
The wind has molecules (you can feel it when you fan yourself) and these molecules can carry very tiny pieces of rock. The wind takes tiny pieces of rock each year and, of course, it takes a long time to erode.
If you are talking about parking meters in Manhattan, there are 39,000 of them. This number was published in May 2012 and may have changed in the last year or so.
A light-year is about 9.5 x 1015 meters. Divide that by the size of your pace in meters. A fairly large pace would be about a meter, but usually paces are somewhat smaller.
40 foot a year
1 light year = 9.4605284 × 1015 meters
It is estimated at about six feet a year.
...1570 meters. A ten-year old can answer that, and I know that because I am a ten-year old.
1 light year = 9.4605284 × 1015 meters or 5.87849981 × 1012 miles.
7.5 light years = 7.0955478544356E+16 meters.
A light-year is about 9.46 x 1015 meters.
it is about 1 foot each year
About 9.5 x 1015.
It has been in that process of creation for millions of years.
1 light year = 9.4605284 × 1015 meters
Approx 18.9 quadrillion metres.