Now a hot research topic, the physics of time travel attracts many a relativist convinced that there is nothing in the laws of physics to forbid travelling backwards in time. Barry Chapman is one of this band, and in Reverse Time Travel (Cassell, 拢16.99, ISBN 0 304 524 5) he reveals his favourite solution to the familiar time-travel paradoxes, the notion of parallel worlds. Time travellers would slip sideways in time. A surprisingly dull treatment of an exciting subject, but lots of background on Einstein’s theories.
More from New Scientist
Explore the latest news, articles and features
Popular articles
Trending New Scientist articles
1
Where, when and how to watch the 2026 solar eclipse
2
Remote-controlled cockroach swarm can now breathe underwater
3
If you aren't terrified by this heatwave, you should be
4
Our verdict on The Selfish Gene: An unpopular piece of popular science
5
We鈥檝e uncovered a master gene that switches on human development
6
Ancient human DNA found on cave art for the first time
7
You should turn off fans when it's too hot 鈥 but how hot is too hot?
8
Neuroscience can't tell us the way to govern people's brains
9
Screwworm could be the first species targeted by an 'extinction drive'
10
Fully autonomous drones have killed human soldiers for the first time
