blakesterz 3 hours ago

John McPhee had a great New Yorker article (which I think was also in the collection Irons in the Fire), where he wrote about how U.S. geologists used sand found in the Japanese "Fu-Go" bombs that made it to the NW US to figure out their launch sites from specific beaches near Tokyo.

It starts on the 9th page here

https://gwern.net/doc/technology/1996-mcphee.pdf

TechIsCool 2 hours ago

I think the rotating photos create a poor UX. The purpose of this layout it seems is to let users view the images carefully and study the details, but the slideshow effect makes that difficult.

  • jhaile 35 minutes ago

    From a casual browsing perspective, I liked it. However, it'd be nice to have it pause when you hover over one - or something like that. To get the best of both worlds.

  • illumanaughty 14 minutes ago

    I mean if your intent is to view the images carefully and study the details why not click through to the details page and see larger, more detailed photos?

rationalist 23 minutes ago

FYI, in many countries and U.S. states, it's illegal to take sand from a beach.

Cool website though.

(Also, in many U.S. parks, it's illegal to take rocks, sticks, or other natural material.)

  • realslimjd 19 minutes ago

    But is it legal to take a microscope to the beach?

    • rationalist 5 minutes ago

      Not that I am aware of. I wouldn't suggest doing that in North Korea though (or possessing any type of scientific or other measuring instrument there).

      The website shows pictures of the sand collection and the microscope. It does not appear to be at a beach.

bandofthehawk 18 minutes ago

It would be nice if they included zoomed out pictures as well, is hard to tell what the beaches look like in person from the magnified sand.

  • illumanaughty 15 minutes ago

    If you click into one of the examples they have a photo of a hand holding a sample plus photos of the beach.

technothrasher 42 minutes ago

I’ve had a sand collection for many years. I keep small vials on my shelf. From the Namib desert, to the slope of Mt Fuji, to Alaskan tundra. It’s a fun way to catalog places I’ve been.

_ache_ an hour ago

I come from a island where its common to pain with sand. About one hundred beach, around two hundred colors, green is hard to make.

I learned that local sand composition is very affected by local geology.

  • jandrese 35 minutes ago

    I mean it makes sense that the sand is made of the same stuff as your local rocks, that's where it came from. Sure it washes around a bit in the surf but it's not like it's floating around the world on the ocean currents, at least not in massive quantities. I'm sure there are bits stuck in driftwood or whatnot but the vast majority should sink to the bottom.

wafflemaker 35 minutes ago

This is just amazing to look at. Incredible, that there are shells as little as grains of sand.

These pictures would make great wallpapers.

max_ 2 hours ago

I remember reading about a case where a murderer was tied to the crime scene just by analysing the quality of soil on his shoes.

It seemed far fetched then, but after seeing these pictures it really makes sense.

SegfaultSeagull an hour ago

This is fantastic! Excellent share. Though I object vigorously to its exclusion of any beach in California. Scandalous!

kalcode 2 hours ago

Very neat, never thought about how different beaches are. Like the sites theme, easy to read as well.

  • functional_dev 25 minutes ago

    I learned recently that white sand is mostly parrotfish poop... they eat coral and then it becomes sand

metaltyphoon an hour ago

No sand from Brazil with such a huge coastline?

  • jolt42 an hour ago

    Only one from Mexico, definitely need more.

bronlund 2 hours ago

This is quality content! A peek into the real wonders of the world and not the usual opinionated slop we are getting way too used to.