Dry ice is made by super cooling and compressing Co2 gas to liquid carbon dioxide, slow and low pressure release creates Co2 snow, that’s turned into pellets or bricks.
Leaves take in Co2 thru the stoma on the underside of the leaf during photosynthesis. The heavy fall can be seen as the sublimation from solid to gas creates the fog, I turned on the fan on low with both intake and outflow turned off, close the doors, suppling extra Co2 before light’s out takes advantage of knowing the stoma closes at night ( no photosynthesis) helping to conserve water, respiring at night the leaves take in oxygen. After lights out I opened the doors, aired out, turned on intake 100 cfm and 100 cfm outflow. It would have been best to apply the Co2 at the beginning of lights on, butt… the fridge package arrived much later than expected.
Dry ice will destroy your skin cells in seconds, plants as well, on contact. The surface temp of the dry ice is -109*F
I capped this jug after the dry ice had completed, as the water gets colder the process slows down, ice forms around the dry ice in sublimation.
If a cap is applied at the height of the process explosive air pressure burst will be almost immediate, painful and is very dangerous.
@beacher I am a fan of the red green show and I am Irish, soooo keep your shillelaghly on the ice
slides a box of Timbits to beacher
@green_raver got it
@OleReynard 30 pound block of dry ice thrown in a pool at a party… terrible idea for swimmers, Co2 concentration at the water surface caused hypoxia.
@ubcchemo 
@BDGrows I mixed it around with the fan, if the parts per million of Co2 gets above 3000 this becomes dangerous to human life. Plants can handle over 5000 ppm Co2 during photosynthesis if the light source is adjusted in unison. The bright dense fog is over 10,000 ppm and is instantly toxic when inhaled.
the next sketch here is going to be a party at the Lorax tree house, your in with a violin. I hope everything is good for you, things are getting way phucked up here. I’m back on home quarantine, soooo I’ll be around more. Keep your stick on the ice.
