🚀 go-pugleaf

In article <1298@ttrdc.UUCP> levy@ttrdc.UUCP (Daniel R. Levy) writes:
>In article <3640@columbia.UUCP>, zdenek@heathcliff.columbia.edu (Zdenek Radouch) writes:
>>
>>Don't be so fast with your conclusions. Let me remind you that the eye
>>is a very very bad optical device. It is the brain what makes you see
>>so clearly! I'm not going to start the never ending discussion about how
>
>Perhaps Glenn was mistaken, but wasn't his impression of something which
>was _hovering_, that is, not moving?

I don't even know if Glenn said anything, let alone what he said.
All I was trying to say was that if one wants to do physics, he has
to THINK before making conclusion based on something somebody else
might have seen.

>				...Cerenkov flashes would just appear as
>sparkles with no particular position and orientation.

I also said that with something like a flash it's not even possible or at
least very difficult (using an eye) to determine it's origin. Given all
that, there's no point in speculating about the position.

What's orientation of a flash?

>And what medium were the flashes taking place in?

What flashes?

>If in the eye, the flashes would seem to follow Glenn's gaze.

Why?

There's one more thing I'd like to mention.
In the original posting, the author remembers astronauts reporting seeing
strange flashes. He asks: "Does anyone else remember anything about this
and/or the cause?" J.R. Stoner's  reply starts "No." and continues "They
could not have been Cerenkov flashes because...".  I follow this with an
article about the eye and its unreliability and there comes a followup that
quotes me, asks questions that (I think) I answered and speculates about
poor Cerenkov again.

I understand that Cerenkov radiation is really exciting subject but can you
PLEASE read the article, you are responding to, before writing the response?

Thank you,

zdenek

 -------------------------------------------------------------------------
 Men are four:
 He who knows and knows that he knows, he is wise - follow him;
 He who knows and knows not that he knows, he is asleep - wake him;
 He who knows not and knows that he knows not, he is simple - teach him;
 He who knows not and knows not that he knows not, he is a fool - shun him!

 zdenek@CS.COLUMBIA.EDU  or 	...!seismo!columbia!cs!zdenek
 Zdenek Radouch, 457 Computer Science, Columbia University,
 500 West 120th St., New York, NY 10027