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 Â鶹´«Ã½
Explore the latest news, articles and features
Earth
Huge crater in Australia may be the oldest impact structure on Earth
News
Health
You should turn off fans when it's too hot – but how hot is too hot?
News
Humans
Elite Maya people had teeth placed in a cave far from their tombs
News
Mind
Parenting may permanently improve brain health for mums and dads
Features
Popular articles
Trending Â鶹´«Ã½ articles
1
Woman with Alzheimer's starts conversing again after taking psilocybin
2
New-to-science spider builds trap that flings ants into the air
3
Unapproved gene therapy for boosting longevity is set to go on sale
4
How menopause radically changes the brain – and what happens after
5
How some people's brains make an extraordinary recovery from stroke
6
‘Fusogenic’ neurosurgery let paralysed pigs walk again – are we next?
7
Most portable air conditioners suck – but there's an easy fix
8
You should turn off fans when it's too hot – but how hot is too hot?
9
A promising natural technique to remove CO2 could backfire
10
The secrets to keeping your brain sharp in old age
