Over time, carbon-14 decays in predictable ways. And with the help of radiocarbon dating, researchers can use that decay as a kind of clock that allows them to peer into the past and determine absolute dates for everything from wood to food, pollen, poop, and even dead animals and humans.Over time, carbon-14 decays in predictable ways. And with the help of radiocarbon dating, researchers can use that decay as a kind of clock that allows them to peer into the past and determine absolute dates

Is half-life free forever?

To celebrate the upcoming launch of Half-Life: Alyx, Steam has announced all of the Half-Life games are going free to play! Hooray! The bad news is that the freebies wont be around forever, but hey, you cant have it all.