If you search online, you’ll be able to find sellers for freeze dryer machines small enough to fit in a kitchen. If you’re willing to spend a few thousand on one, it’s fun to see what happens to common, everyday food when you leave it in a freeze dryer for several hours. Usually with candy,…

Have you heard the story of 42.zip? It’s supposedly a compressed zip file that is only around 42 kB, but when fully uncompressed yields around 4500 TB of data. It’s an old file and there are many newer files which exceed even this limit. Yet even this is small on the scale of the internet….

Sludge in wastewater treatment is the thick, semi-solid byproduct that settles out from the treated wastewater. This sludge can be broken down by bacteria in a process called anaerobic digestion, producing biogas that can be used as fuel to power the wastewater treatment plant. However, anaerobic digestion of sludge is challenging because the sludge is…