There's no perfect solution, but different authentication methods can work better in some circumstances than others.
Explore. org has extended Day 1 voting to tomorrow. The post Record-setting Fat Bear Week turnout overloads voting site appeared first on Popular Science .
India has rapidly decarbonised electricity generation, but its gains are tempered by transmission shortages.
The Jurassic marine predator’s tummy likely couldn’t handle invertebrate shells. The post Plesiosaurs vomited indigestible pellets like owls appeared first on Popular Science .
Plesiosaurs swam into river deltas to vomit up shells and other indigestible elements of their marine meals, suggests new research published by Cambridge University Press. The behavior resembles that of today's fur seals and marine crocodiles.
An international research team has developed microscopic particles that can make blind retinas respond to light. The particles act as tiny light receptors. Researchers inject them into the eye, where they settle close to nerve cells in the retina.