funsec mailing list archives
Transit of venus safety tip
From: Robert Slade <rmslade () shaw ca>
Date: Tue, 05 Jun 2012 15:29:26 -0700
Many people around the world are hoping for clear skies to view the transit of Venus across the face of the sun, an event which will not occur again for more than a century. [1] However, public safety officials are concerned that people may endanger their eyes by looking directly at the sun without eye protection. Not only will they not be able to see any indications of the transit, but this can, of course, burn the retina of the eye, causing permanent damage, and possibly complete blindness. However, I have confirmed that ordinary sunglasses are sufficient protection, as long as used correctly. And the great thing is, this works no matter what "Venus transit" webcam you view, and no matter how brightly you have your monitor cranked up. (In the spring, generally we would have at least some clear skies for viewing. However, typically Vancouver, it's pretty much completely overcast here for the entire run of the transit.) [1] It's rather interesting that the transits occur in pairs, eight years apart, and then more than a century between the eight year pairs. ====================== rslade () computercrime org slade () victoria tc ca rslade () vcn bc ca "If you do buy a computer, don't turn it on." - Richards' 2nd Law ============= for back issues: [Base URL] site http://victoria.tc.ca/techrev/ CISSP refs: [Base URL]mnbksccd.htm Security Dict.: [Base URL]secgloss.htm Book reviews: [Base URL]mnbk.htm [Base URL]review.htm Partial/recent: http://groups.yahoo.com/group/techbooks/ Review mailing list: send mail to techbooks-subscribe () egroups com http://blogs.securiteam.com/index.php/archives/author/p1/ http://blog.isc2.org/isc2_blog/slade/index.html http://twitter.com/rslade _______________________________________________ Fun and Misc security discussion for OT posts. https://linuxbox.org/cgi-bin/mailman/listinfo/funsec Note: funsec is a public and open mailing list.
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- Transit of venus safety tip Robert Slade (Jun 05)