[Propertalk] Men Blinded From A Solar Eclipse in 20 seconds Safelyglasses - must have an ISO icon and ISO ref #12312-2

[Joe Parrish]

In school we cut out one side of a box...put a smallhole in the top of the box and laid a piece of white paper underneath. 
 
On the white paper you could see the black encroaching on thewhite dot of the sun, showing the eclipse, without looking directly at the sun.
 
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There have been reports from NASA of companies selling unsafepaper solar glasses. To determine if glasses are authentic, make sure they havean ISO icon and an ISO reference number of 12312-2
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.Men Partially Blinded From A Solar Eclipse Warn Others To Watch Safely
“Nothing has changed,” one of the men said of the damage sustained 55 years ago. 
“It doesn’t get any worse or better.”


http://www.huffingtonpost.com/entry/men-warn-of-solar-eclipse-blinding_us_599ac5bfe4b0a2608a6d5169?ncid=inblnkushpmg00000009



All it took was 20 seconds.
That’s how long two Oregon men say they looked at a partial solar eclipse with their naked eyes 55 years ago before it burned their retinas, causing permanent blindness.


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