Dry Ice Made into Super-tough Glass

janus zeal writes "A form of solid carbon dioxide that could be used to make ultra-hard glass or coatings for microelectronic devices has been discovered. The material, named amorphous carbonia, was created by scientists from the University of Florence in Italy. Writing in the journal Nature, the team says the material was theoretically possible but had never been created. It was made by squeezing dry ice, a form of carbon dioxide used to create smoke in stage shows, at huge pressure. Scientists are interested in the new material because of the potential applications. Also, they believe it could give them clues to the processes that happen in the center of huge gas giant planets such as Jupiter."

Comments

Not so much with the dry ice any more

[jfengel]

For stage shows, fog machines are far more controllable and produce better results than dropping dry ice in water. They use "fog juice" rather than dry ice.

Though sometimes you'll use dry ice to cool the resulting fog. The hot fog gives you a smoky, atmospheric effect. If you want ground-hugging fog, you've got to cool it down, and dry ice is a pretty good way to chill it quickly.

Fog machine fog isn't toxic, but can be a problem.

[CFD339]

I am a firefighter. Actually, I'm a Lt. on an Engine company -- one of the volunteer firefighters who protect about 40% of the US population (most people don't realize how much of the US is protected by volunteer firefighters).

We train using fog machines frequently, because if something goes wrong you can remove your SCBA and breath normally.

In a training event for "Explorers" not too long ago, we used this fake smoke on a hot day. We had to cancel the use of it because several of the kids has asthma attacks. After investigating, the only explanation we could find, was that the appearance of smoke creates the expectation that it will be difficult to breathe. That expectation can be self fulfilling -- especially in young people who have had bad reactions to actual smoke in the past.

Oh well.