SEVERAL articles 1–3 have described efforts to reconcile radiocarbon ages with “true ages”. The principle behind these procedures lies in the determination of a radiocarbon age and its ...

What is the molecular clock? Levels of molecular variation could be used, in principle, to estimate divergence times, serving as evolutionary "clocks" that "tick" at different rates. Subsequent ...

Radiocarbon dating, also known as carbon-14 dating, is a method to determine the age of organic materials as old as 60,000 years. First developed in the 1940s at the University of Chicago by Willard ...

Editor’s note: This is part of a series called “The Day Tomorrow Began,” which explores the history of breakthroughs at UChicago. Learn more here. Radiocarbon dating, or carbon-14 dating, is a ...

A seasoned small business and technology writer and educator with more than 20 years of experience, Shweta excels in demystifying complex tech tools and concepts for small businesses. Her work has ...

Andrew Smith, Dr. Quan Hua and Dr. Bin Yang have contributed to a paper that elucidates how in situ cosmogenic radiocarbon (14 C) is produced, retained and lost in the top layer of compacting snow ...

In 1940 Martin Kamen discovered radioactive carbon-14 (an isotope of carbon) and found that it had a half-life of about 5,700 years. Scientists had also found that some of the nitrogen in the ...

Narrator: How about showing Brain some on the hour action Clock? Clock: Alright! 1 o’clock! 2 o’clock! 3 o’clock! Narrator: You see Brain, Clock is made up of ...

Every day, the clock ticks closer to a potential doomsday scenario. That’s why I introduced the AI Safety Clock last month. My goal is simple: I want to make clear that the dangers of ...

Nasha is a Managing Editor for CNET, overseeing our sleep and wellness verticals. She is a nutrition, mental health, fitness and sleep science enthusiast. Her passion for mindful and holistic ...

While dark mornings are inevitable in winter, turning the clocks back gives us an extra hour of natural light. At least 15 minutes' exposure to natural daylight, as early as possible in the day ...

The shift by an hour for daylight savings is a source of anxiety for parents wanting to keep their children to a sleep schedule (Credit: Getty Images) When the clocks go back for the winter after ...