News tagged with travel time

Time travel theory avoids grandfather paradox

(PhysOrg.com) -- The possibility of going back in time only to kill your ancestors and prevent your own birth has posed a serious problem for potential time travelers, not even considering the technical details ...

Jul 21, 2010 report
4.2 / 5 (59) 96 | with audio podcast

Light speed

The recent news of neutrinos moving faster than light might have got everyone thinking about warp drive and all that, but really there is no need to imagine something that can move faster than 300,000 kilometres ...

Oct 10, 2011
3.8 / 5 (42) 89

Time travel? Maybe

Imagine that you're a science-fiction writer on a tight schedule. You'd like to play in the vast expanses of the universe, but you have too much scientific integrity to conjure up a warp drive or a DeLorean out of thin air. ...

May 11, 2010
3.3 / 5 (36) 35

Science shows why Doctor Who is so special

As Doctor Who's 50th anniversary looms, time travel is everywhere – on the screen, at least. Famously, the Doctor can whizz through the years using a "dimensionally transcendental" machine, the TARDIS, ...

Nov 21, 2013
4.9 / 5 (14) 41

What makes us human?

What separates humans from other animals, including our closest relatives? It's one of those big questions perennially posed by the evo-curious public. But until recently I seldom gave it much thought. Mostly ...

Jun 03, 2014
4.4 / 5 (10) 21