4K views · 74 reactions | How do people around the world keep time together? They use atomic clocks. These remarkable devices tap into frequencies hidden in the hearts of atoms to produce astoundingly stable, accurate ticks of time – far better than any other kind of clock. This animation explains why we use atoms to keep time and how they keep us all on the beat. | National Institute of Standards and Technology (NIST) | Facebook

3.6K views · 18 reactions | Ultra-precise atomic clocks can now measure how gravity and movement change the way time elapses — an advance that could revolutionize our understanding of time itself. https://trib.al/nAqLQlZ | Bloomberg Originals | Facebook