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To: IgnaciKat
The filtering needed is like in an arc-welding helmet.

I have read that even welding goggles are not enough. ???

10 posted on 05/31/2021 9:54:03 AM PDT by libertylover (Our biggest problem by far: most of the news media is agenda driven, not truth driven.)
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To: libertylover

Gas welding glasses are not safe at all, as they only block heat and infrared. Electric arc produces the same sort of damaging energy as sunlight (lots of UV). You can see nothing through that filter ordinarily.

Eye damage is permanent. Do not take any chances unless you know what you are doing.


11 posted on 05/31/2021 10:00:50 AM PDT by IgnaciKat
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To: libertylover
I have read that even welding goggles are not enough. ???

Before the 2017 eclipse I was looking for some goggles. It turns out you need number 14 for looking at the sun, and the only welding that needs that level of protection is arc welding and you need a full mask for that to prevent face ultraviolet burns.

I just did find a pair of 14 glasses for $30, but it looks like they wouldn't fit over my glasses.

*some astronomy websites said 12 is enough, but that is about 7 times as much light as 14. I'll stay safe with 14. Also if you are going into totality, you want your eyes as dark adapted as possible when totality hits and you can look at the eclipse naked eyed.

14 posted on 05/31/2021 10:49:30 AM PDT by KarlInOhio (Police should refuse duty at NBA venues. Let them wallow in their desired chaos without police.)
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