Jan 9, 2011: Closer Look at Snow

Magnified, snow sometimes looks like a caricature of itself, or what snow might look like in a Tim Burton movie...but sometimes it doesn't look like itself at all.



More pictures here.

YIKES!
Please Mods...Fix the date. Thanks.

It looks like snow that's been hanging around the gutter for a few days, all dingy and shit.


Thanks, ME, Pico should be proud.

Punk snow.

Nice pics.

Very cool photos at that link. Some of 'em look like toys that got left scattered over a playroom floor. Y'all should check out the photos of cocktails under a microscrope that are also featured at that same website. Psychadelic!



http://www.laboiteverte.fr/des-cocktails-au-microscope/

We visited similar photos several years ago...
http://www.cellar.org/showpost.php?p=126513

From here:
http://www.microscopy.fsu.edu/galleria/index.html

Gorgeous. But I have spent the weekend trying NOT to get a closer look at the snow here. As in not getting down to pavement level.

I likes the snow.

Snow for my birthday. (yeah, it's today)

I may have mentioned before that I get snow every year for my birthday, well, +/-3 days, which means that I got some at -3, -1, and today, Cellar Snow. Looks good for +3 as well.

Great pics!

I saw this thread yesterday, just as the snow was starting, and sent the images to my colleagues, so we were inspired to have a go.

I didn't collect the snow and helped with getting the settings right for good pictures.

The first one is fromt he start of the storm when the flakes felt small and icy, the last two are from today when they were big and fluffy.

Awesome!

How much does a scanning electron microscope cost? I want one.

So, those post/column-like things hold two 'snowflake' crystals together, I suppose.

Quote:

Originally Posted by Pico and ME So, those post/column-like things hold two 'snowflake' crystals together, I suppose.

Down memory lane... As a student I created mnemonic devises to help understand some things.

One I remember now, 50+ yrs later, about EM images is:
"a hole creates a shadow of brightness"

Is this field still doing the "gold" or other metal evaporations to make biological specimens visible with the EM ?
It was a tedious process, often ending in failure.

Those are cool. That first one looks like one of those bank containers you use at the drive up window.

Quote:

Originally Posted by Beest you can get Little desktop SEM's now, I think they are about $80K.

Beest; How can you do this with an EM, doesn't the flake melt instantly?

Quote:

Originally Posted by SPUCK Beest; How can you do this with an EM, doesn't the flake melt instantly?

I should think a vacuum would make it change state very quickly.

Quote:

Originally Posted by Beest If you know how to maintain them they often give the old ones away, I knew a guy who had one in his garage.

Thanks Beest. I thought the beam currents were way higher. Prolly new sensors need way less.