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, £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
Our verdict on The Selfish Gene: An unpopular piece of popular science
2
Where, when and how to watch the 2026 solar eclipse
3
If you aren't terrified by this heatwave, you should be
4
We’ve uncovered a master gene that switches on human development
5
Ancient human DNA found on cave art for the first time
6
What is a ‘normal’ memory slowdown, and when should I worry?
7
How menopause radically changes the brain – and what happens after
8
Woman with Alzheimer's starts conversing again after taking psilocybin
9
The race to understand how and when Thwaites glacier will collapse
10
Europe’s heatwave is the hottest and most humid ever
