File:Liquid awesome.ppg.jpg

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Description

Before stars, the universe had only the three lightest elements: hydrogen, inert helium, and a bit of lithium. With just these building blocks, the complex molecules needed for life would not be possible (blog: Ode to Carbon).

Carbon, oxygen and the rest of the heavier elements came from the crucible of stars that died billions of years ago.

Here you see a light blue pellet of “dry ice” floating on a shallow bed of dark blue water and shooting off geysers of carbon dioxide as it warms up. The dry ice is solid CO2 which sublimates directly to gas as it warms up (skipping the liquid phase altogether).

Particles glide along the surface, spin, and merge when they touch. Here is a very cool video of the icy bodies spinning and shooting around.

Date

14 January 2007, 16:20:51

Source

Flickr

Author

Steve Jurvetson

Permission
( Reusing this file)

This image, which was originally posted to Flickr.com, was uploaded to Commons using Flickr upload bot on 06:48, 22 November 2007 (UTC) by Astrojunta ( talk). On that date it was licensed under the license below.

This file is licensed under the Creative Commons Attribution 2.0 Generic license.

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to remix – to adapt the work

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attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).

CC-BY-2.0 Creative Commons Attribution 2.0 truetrue

Reviewer

Astrojunta

File usage

The following pages on Schools Wikipedia link to this image (list may be incomplete):

Dry ice

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.

Camera manufacturer	Canon
Camera model	Canon PowerShot SD700 IS
Exposure time	1/50 sec (0.02)
F-number	f/2.8
Date and time of data generation	16:20, 14 January 2007
Lens focal length	5.8 mm
Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	QuickTime 7.1.3
File change date and time	19:09, 16 January 2007
Y and C positioning	Centered
Exif version	2.2
Date and time of digitizing	16:20, 14 January 2007
Shutter speed	5.65625
APEX aperture	2.96875
Exposure bias	0
Maximum land aperture	2.96875 APEX (f/2.8)
Metering mode	Pattern
Flash	Flash did not fire, auto mode, red-eye reduction mode
Colour space	sRGB
Sensing method	One-chip colour area sensor

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