On Mon, 21 Aug 2017 12:14:45 +0100, "Ophelia" >
wrote:

>"Ed Pawlowski" wrote in message ...
>
>On 8/20/2017 8:31 PM, U.S. Janet B. wrote:
>
>>>
>>> Things were a lot simpler back in the old days. People just used film
>>> leader or glass darkened with candle soot to view the sun. As far as I
>>> know there was no mass epidemic of blindness caused by viewing a solar
>>> eclipse. These days, it seen as a serious public health issue.
>>
>> What I have heard is a scale with partial loss of vision on one end to
>> complete blindness at the other.
>> Janet US
>>
>
>A couple seconds glance is not a big deal but a half hour stare would
>sure do some damage.
>
>==
>
>Back in the day I have heard of people looking into the reflection from a
>bowl of water.
>
>I don't know how safe that was.

That is so neat, I like that bit of old time thinking. thanks
Janet US