solid carbon dioxide

“As you know, historically rainmaking has involved seeding clouds with one of three different chemicals: silver iodide, potassium iodide, and solid carbon dioxide. Each of these has advantages and disadvantages, which is why none has truly separated itself from the others. What makes our concept special, as you say, is that it uses a unique blend of all three chemicals. Our belief is that this blend maximizes the advantages of each.”

If there is solid carbon dioxide in these cold traps, it could help with the production of fuel, steel and other biomaterials on the Moon.

For its vaccine, Pfizer designed special cooler containers that can be stuffed with dry ice, which is solid carbon dioxide.

Particles of silver iodide — or sometimes potassium iodide, liquid propane or solid carbon dioxide in the form of dry ice — are sprayed into a saturated cloud to kickstart cloud condensation, a natural process in which particulate matter acts as nuclei that attract supercooled water vapor, which freezes into ice.

The group of safety-goggled third-graders from Jennie Dean Elementary in Manassas is hovered over a large bowl in which they’ve just taken turns dropping chunks of dry ice, or solid carbon dioxide, into water.