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Andy Resnick's latest activity
Andy Resnick
reacted to
sophiecentaur's post
in the thread
B
Huh? Seeing crisp vitreous floaters while using microscope
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Like
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That makes sense. If the direction of light passing through each of the parts of the floaters then they will 'throw distinct shadows' on...
Today, 9:39 AM
Andy Resnick
replied to the thread
Art
Exploring Science and Technology Through Sci-Fi Space Art
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Very cool! Your style reminds me of a mix of 'Atomahawk' (Ian Bederman is the artist, I think...) and Jack Kirby.
Today, 9:38 AM
Andy Resnick
replied to the thread
The Secrets of Prof. Verschure's Rosetta Stones
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Posting a day early this week... another damtjernite, this one from Steinsrud: The appearance of this damtjernite differs...
Oct 23, 2024
Andy Resnick
replied to the thread
Who Is the Most Underrated Rock Drummer?
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Barriemore Barlow: Aynsley Dunbar:
Oct 21, 2024
Andy Resnick
replied to the thread
The Secrets of Prof. Verschure's Rosetta Stones
.
This next example of damtjernite comes from Brånan: While there are some differences between Damtjern-damtjernite and...
Oct 17, 2024
Andy Resnick
replied to the thread
I
On Mixing Colors of Light
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Good answer, but you reversed rods and cones.
Oct 17, 2024
Andy Resnick
replied to the thread
How to interpret the difference in height between two people in this Ames room?
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There's a fantastic book "Basic Vision: an introduction to visual perception" that has a whole chapter devoted to how our brain extracts...
Oct 17, 2024
Andy Resnick
replied to the thread
I
On Mixing Colors of Light
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There's a lot easier way to show this by mixing light from different narrowband sources (e.g. lasers). Color perception occurs at the...
Oct 17, 2024
Andy Resnick
reacted to
glappkaeft's post
in the thread
Our Beautiful Universe - Photos and Videos
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Like
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Quick stack and edit of comet C/2023 A3 (Tsuchinshan-ATLAS) shot using a simple tripod from earlier tonight (CET). 11 individual 6s...
Oct 16, 2024
Andy Resnick
replied to the thread
I
Need Help Understanding Echelle Diffraction Gratings
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Echelle gratings are quite specialized; other sources of information I recommend are: Richardson Grating Lab handbook...
Oct 16, 2024
Andy Resnick
replied to the thread
B
Huh? Seeing crisp vitreous floaters while using microscope
.
I have not seen this phenomena specifically, but I have seen similar optical effects. My suspicion is that in the microscope's 'image...
Oct 15, 2024
Andy Resnick
replied to the thread
Our Beautiful Universe - Photos and Videos
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A clear moonless week of nights, so I continued to image Sh2-125 (Cocoon Nebula): Nikon D810 + Nikkor 400/2.8 @ f/4 mounted on...
Oct 14, 2024
Andy Resnick
replied to the thread
The Secrets of Prof. Verschure's Rosetta Stones
.
This is an example of Damtjernite from the type locality Damtjern: Quoting from various papers: “Damkjernites from the type locality...
Oct 10, 2024
Andy Resnick
replied to the thread
Books to read before Arnold's Classical Mechanics
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I'd also recommend checking out Greiner's 2-volume set on Classical Mechanics.
Oct 10, 2024
Andy Resnick
reacted to
jbriggs444's post
in the thread
B
The power output of a vehicle when descending hills
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Like
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In a classical four stroke engine (Otto Cycle) there is throttle plate in the carburetor. On a down slope, the throttle will be almost...
Oct 8, 2024
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