Re: Etendue, f-number, and aperture diameter

"Michelle" <mhs.news@xxxxxxxxxxx> wrote in
news:000001c8c2ac$074a4350$f5347d80@xxxxxxx:

By the way, how powerful is a magnet? : )

Blue.

(ps, please turn off MIME/HTML on your usenet client, it's mucking
up your posts.)

Brian
--
http://www.skywise711.com - Lasers, Seismology, Astronomy, Skepticism
Seismic FAQ: http://www.skywise711.com/SeismicFAQ/SeismicFAQ.html
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Sed quis custodiet ipsos Custodes?
.

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