Starship Asterisk*

Beautiful capture! I also enjoyed the "Lofoten" link that gives a drone-captured view of the area that makes me feel almost like I visited the place (but also makes me want to [i]really[/i] visit). That large rock (I wonder what it is called) looks almost like a much smaller rock, covered in moss. But I guess most of the yellow-green growth seen there is grass and small bushes ... I'm not at all sure.

I got a bit curious about the physics behind rainbows today, and found this great webpage:
[url]https://inlightofnature.com/how-rainbows-form/[/url]
It gives a brief description of how Rene DesCartes explained the 42[char]deg[/char] visual angle for rainbows, and it goes on to describe the reason that the second rainbow is at 51[char]deg[/char]. It is interesting to see this pre-calculus geometric reasoning about the maximum of a function. The work of DesCartes had a great influence on Isaac Newton.

[quote=De58te post_id=328078 time=1672144818 user_id=141631]
Where else can you see that? Well I think I seen very similar pictures like that (minus the rainbow) in Patagonia. Near the Straits of Magellan. Sort of like at the opposite end of the Earth from Norway.
[/quote]

You can see them anywhere. But I've never seen so many rainbows (of the usual sort) as I have in Norway and in Patagonia. Because the Sun is always low, and it's always rainy. Perfect conditions.

[attachment=1]FullCircleRainbow_Moesch_960.jpg[/attachment]
When I was a kid I used to make rainbows with a garden hose! You
could make full circle ones with the mist of a garden hose! 8-)
[attachment=0]smiling-cat-for-web.jpg[/attachment]
Kitty cat! :lol2:

Where else can you see that? Well I think I seen very similar pictures like that (minus the rainbow) in Patagonia. Near the Straits of Magellan. Sort of like at the opposite end of the Earth from Norway.

That's a great image! :D I didn't know that it was possible to see the full circle rainbow from an airborne vessel, although I should have guessed.

My first thought when I saw the image was, [i]Wow, that's an amazing image![/i]

My second thought, when I was still only focusing on the image and hadn't taken in the heading at all, was "That's Norway!".

I don't know where else you can find such a mountainous landscape with so much water and so little vegetation of any kind. Note the gray skies, too.

Ann

It is the Olstinden peak near Reine i Lofoten.

[url=https://apod.nasa.gov/apod/ap221227.html] [img]https://apod.nasa.gov/apod/calendar/S_221227.jpg[/img] [size=150]A Full Circle Rainbow over Norway[/size][/url]

[b] Explanation: [/b] Have you ever seen an entire rainbow? From the ground, typically, only the top portion of a rainbow is [url=http://www.slate.com/blogs/bad_astronomy/2014/09/17/circular_rainbow_rare_optic_effect_seen_from_the_air.html]visible because[/url] directions toward the ground have fewer raindrops. From the air, though, the entire 360-degree circle of a [url=https://en.wikipedia.org/wiki/Rainbow]rainbow[/url] is more commonly visible. Pictured here, a full-circle rainbow was captured over the [url=https://youtu.be/mg67iIFivDo]Lofoten Islands[/url] of [url=https://en.wikipedia.org/wiki/Norway]Norway[/url] in September by a drone passing through a rain shower. An observer-dependent [url=https://scijinks.gov/rainbow/]phenomenon[/url] primarily caused by the [url=https://www.atoptics.co.uk/rainbows/orders.htm]internal reflection[/url] of sunlight by raindrops, the [url=https://www.atoptics.co.uk/bows.htm]rainbow[/url] has a full [url=https://www.reddit.com/r/askscience/comments/24x910/what_is_the_diameter_of_a_rainbow/]diameter[/url] of 84 degrees. The [url=https://solarsystem.nasa.gov/solar-system/sun/overview/]Sun[/url] is in the exact [url=https://apod.nasa.gov/apod/ap190624.html]opposite direction[/url] from the rainbow's center. As a [url=https://hiawasseevet.com/wp-content/uploads/2021/08/smiling-cat-for-web.jpg]bonus[/url], a [url=https://apod.nasa.gov/apod/ap070912.html]second rainbow[/url] that was more faint and color-reversed was visible outside the first.


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