¿ìè¶ÌÊÓƵ

time

rat contemplating time

Life

Rats can track the passage of time and judge their accuracy

Rats trained to leave 3.2 seconds between presses of a lever or to hold it down for this length of time seem able to judge whether they were accurate enough to have earned a reward

¿ìè¶ÌÊÓƵ

What the thermodynamics of clocks tell us about the mysteries of time

Physics

What the thermodynamics of clocks tell us about the mysteries of time

Features

WHY does time only move forward?

Physics

Why does time only move forwards? Possibly just because we’re ignorant

Features

Stopwatch at swimming race

Technology

Stopwatch errors could make race times wrong by a tenth of a second

¿ìè¶ÌÊÓƵ

When time runs backwards: What thermodynamics can tell us about life

Physics

When time runs backwards: What thermodynamics can tell us about life

Features

Measuring time accurately increases the entropy in the universe

Physics

Measuring time accurately increases the entropy in the universe

¿ìè¶ÌÊÓƵ

Did time flow in two directions from the big bang, making two futures?

Physics

Did time flow in two directions from the big bang, making two futures?

Features

Sean Carroll event image

How time works with Sean Carroll

ROBERT PATTINSON and JOHN DAVID WASHINGTON in Warner Bros. Pictures’ action epic

Technology

Tenet review: Time twisting fun that is head-spinningly hard to grasp

Culture

Inside the incredibly slow race to reinvent time

Physics

Inside the incredibly slow race to reinvent time

The latest atomic clocks are so staggeringly precise that they are going to redefine the second. The only question now is when

Features

Definition

Gravity

Space

Why it's better to fall into a big black hole, and other bizarre facts

Features

Space

Astronomical time can help us put lockdown into perspective

Comment

Physics

In the quantum realm, cause doesn’t necessarily come before effect

Features

Piano Exit Overlay Banner Mobile Piano Exit Overlay Banner Desktop