Collaborate Disseminate
Summer has settled upon the northern hemisphere, which means that it’s time for sweet, sweet strawberries to be cheap and plentiful. But would you believe they taste even better in …read more Continue reading Can You Freeze-Dry Strawberries Without a Machine?
[Hyperspace Pirate] wants to make his own dry ice, but he wants it to be really, really cheap. So naturally, his first stop is… the beach? That’s right, the beach, …read more Continue reading Dry Ice from Seashells, the Hard (But Cheap) Way
Along the road to developing his own cryocooler to produce liquid nitrogen, there are a number of interesting rabbit holes [Hyperspace Pirate] has found himself taking a look at. For …read more Continue reading Making Dry Ice at Home is Just as Hard as It Sounds
When you’re a kid, one of the surest signs of summer is hearing the happy sound of the ice cream truck crawling through the neighborhood. You don’t worry about how that magical truck is keeping the ice cream cold, only that it rolls down your street, and that the stars …read more
Continue reading Fresh Food Year Round? You Can Thank Frederick McKinley Jones
The leaves are turning brown, and the spookier season is upon us. If you’re currently working up plans for a top-notch Halloween party, you would do well to consider building a fog machine like this unit from [DIY Machines]!
This fog machine is based around dry ice, so you’ll need …read more
Continue reading This Dry-Ice Powered Fog Machine Is Perfect For Halloween
When it comes to making music, there are really only a few ways to create the tones needed — pluck something, blow into something, or hit something. But where does that leave this dry-ice powered organ that recreates tunes with wind chimes and blocks of solid CO2?
It turns out this is firmly in the “hit something” camp, as [Leah Edwards] explains of her project. When the metal wind chime tubes come in contact with dry ice, the temperature difference sublimates the solid CO2. The puff of gas lifts the tube slightly, letting it fall back against the brick of …read more
Continue reading Wind Chimes and Dry Ice Make an Unusual Musical Instrument
[Pabr] is trying to make dry ice the hard way by building a thermoelectric dry ice generator. The project is a well planned round trip through thermodynamics and cryogenics with a hard landing on the icy grounds of trial and error.
While dry ice can be obtained with simpler methods, for example by venting gaseous CO2 from fire extinguishers and collecting the forming CO2 flakes, [pabr’s] method is indeed attractive as a more compact solid-state solution. The setup uses a four stage Peltier element, which uses four Peltier stages to achieve a high temperature differential. With sufficient cooling on the …read more
Continue reading Thermoelectric Dry Ice Generator Does Not Work (Yet)