Lifeboat Foundation

The antimicrobial properties of silver have been known for centuries. While it is still a mystery as to exactly how silver kills bacteria, University of Arkansas researchers have taken a step toward better understanding the process by looking at dynamics of proteins in live bacteria at the molecular level.

Traditionally, the antimicrobial effects of silver have been measured through bioassays, which compare the effect of a substance on a test organism against a standard, untreated preparation. While these methods are effective, they typically produce only snapshots in time, said Yong Wang, assistant professor of physics and an author of the study, published in the journal Applied and Environmental Microbiology.

Instead, Wang and his colleagues used an advanced imaging technique, called “single-particle-tracking photoactivated localization microscopy,” to watch and track a particular protein found in E. coli bacteria over time.

Scientists say ancient Romans had perfect teeth because of their low-sugar diets.

Last year, Rocket Lab announced that it would attempt to reuse the first stage of its Electron rocket. The company’s goal is to catch the stage as it falls back towards the ocean by plucking it out of mid-air with a helicopter. While that’s ambitious, a video released today shows that Rocket Lab may not be too far off. The clip shows one helicopter dropping an Electron test stage and another hooking the stage’s parachute with a grappling hook and towing it back to land.

Rocket Lab pulled off this stunt in early March. One helicopter dropped the Electron test stage over open ocean in New Zealand. A second helicopter caught it, on the first attempt, at around 5,000 feet.

Thanks to 3D-printing, 25,000 homeless people in Texas have somewhere to live.

The future of our pilots is in the hands of this crazy motion simulator.

The Remidi T8, a new EDM instrument, literally puts music making in your hands. http://voc.tv/14JQHoo

A “vegan butcher shop” sells meatless meat and cheeseless cheese.

Click on photo to start video.

Why do you get so emotional on planes?

Octopuses have blue blood, no bones and three hearts. 🐙.