Reconstruction of Lomonosov's Discovery of Venus's Atmosphere (2012) [pdf]
(lss.fnal.gov)50 points by benbreen 5 days ago | 11 comments
photochemsyn 4 days ago | root | parent | next |
The circles are due to the pinhole camera effect I believe - during a partial eclipse of the sun by the moon the circles will have a disc cut out of them, similar to a hole in a sheet of paper. I've noticed this effect myself during a partial eclipse.
hhhAndrew 6 hours ago | root | parent |
Yes! Here's a pic of dappled sunlight from the 2012 partial eclipse in bay area: https://photos.app.goo.gl/qBGGPUEu8bZB4Dgi9
selimthegrim 6 hours ago | root | parent | prev |
I’m afraid, sir or madam, this reference went way over my head
5 days ago | prev | next |
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EVa5I7bHFq9mnYK 5 days ago | prev |
[flagged]
perihelions 5 days ago | root | parent | next |
It is contemptible to denigrate another American citizen for the ethnic-sounding origin of their last name. It's an astounding irony that you would invoke the name of Fermi to do that: Fermi was a citizen of Benito Mussolini's Italy, a dissident who immigrated to the United States during the second world war.
justsomehnguy 5 days ago | root | parent | prev | next |
"How to tell if someone is a racist? You don't need to, they would tell you themselves"
cft 5 days ago | root | parent |
I upvoted both, yours and the one you replied to
5 days ago | root | parent | prev | next |
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lovegrenoble 5 days ago | root | parent | prev |
Highly likely, russian spies ))
082349872349872 5 days ago | next |
So one eye-friendly way to observe the sun (at least in summer) is to stand under a deciduous tree canopy and look down: under suitable candidates there will be several foliage-diffracted circles in evidence among the general shadow.
Do these reflect the solar disk, or are they circular due to a different process? If the former, would it be possible (with enough magnification) to get similar images during a Venusian transit?
> "At the time we were all making astronomical observations at a dollar per figure, I realised that for centuries we had only one model for this scientific discipline..." — not AAJARENyC, "Transit of Venus" (1977)