tag:blogger.com,1999:blog-9120722.post113645837298048103..comments2023-10-31T09:54:53.753-04:00Comments on I Copy That: it was a nice day -chadhttp://www.blogger.com/profile/06315976133014398265noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-9120722.post-82381711818468545932022-04-24T09:55:36.624-04:002022-04-24T09:55:36.624-04:00Very crreative postVery crreative postReeva Millshttps://www.reevamills.com/noreply@blogger.comtag:blogger.com,1999:blog-9120722.post-1137510441791752962006-01-17T10:07:00.000-05:002006-01-17T10:07:00.000-05:00Ah... cool!Ah... cool!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-9120722.post-1137100199836592292006-01-12T16:09:00.000-05:002006-01-12T16:09:00.000-05:00707.6 seconds...11.78 minutes...well done.707.6 seconds...<BR/><BR/>11.78 minutes...<BR/><BR/>well done.chadhttps://www.blogger.com/profile/06315976133014398265noreply@blogger.comtag:blogger.com,1999:blog-9120722.post-1136573673984580352006-01-06T13:54:00.000-05:002006-01-06T13:54:00.000-05:00I did a crude measurement on your stars picture. I...I did a crude measurement on your stars picture. It looks like the <A HREF="http://static.flickr.com/38/83045067_b8d5691fb4_o.jpg" REL="nofollow">angle of the arc travelled by the stars</A> during the exposure of the film is approximately 3 degrees. Since the earth would rotate 360 degrees in 24 hours (= 1440 minutes), a 3 degree angle would correspond to approximately a 12 minute exposure. <BR/><BR/>Is that about right?Anonymousnoreply@blogger.com