Biology

Maker Faire New York: Using Microbes to Etch PCBs

Maker Faire New York: Using Microbes to Etch PCBs

Acidithiobacillus ferrooxidans is a gram-negative bacterium that lives, in the natural world, in iron sulfide (aka “pyrite,” aka “fool’s gold) deposits, where it eats iron and sulfur and excretes sulfuric acid. Now, a team of graduates, undergraduates, and post-docs at New York’s Columbia and Cooper Union universities is working to develop a genetically-modified strain of A. ferrooxidans…

Cypress Hill Played Through a Squid’s Fin

Cypress Hill Played Through a Squid’s Fin

Cephalopods like squid and octopuses haveย color-changing cells called chromatophores, which enable them to blend into their surroundings to hide from predators and prey. Chromatophores can be triggered by electrical signals, so watch what happens when the folks at Backyard Brains play music through a squid fin. The song selection is Cypress Hill’s 1993 classic track, […]