All of your dreams about time travel are about to be squashed.
In a new paper, a Stanford theoretical physicist shows that there may be a way to link general relativity and quantum mechanics.
Here, physics teacher Dan Burns shows us how we can visualize (and understand) the fabric of our cosmos in a way that is remarkably simplistic.
Just because there are four dimensions doesn't mean there's a "fourth dimension." It may sound confusing, but this is vitally important in relation to understanding how space and time work.
Over 350,000 people subscribe to our newsletter.
Sign in to join the conversation.