Why does space have three dimensions?
2 September 2015
The universe might go awry if not for the familiar three dimensions, but theories of everything say there should be more. What are we missing?
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Found 57 results for Carlo Rovelli
How to think about… Space-time
10 December 2014
It has often been described as a rubber sheet, but Einstein's twisted space-time is more intangible than that
How to think about… Higher dimensions
10 December 2014
Reality could have many more dimensions than the familiar four – physicists have tricks for projecting their minds beyond the ones we perceive
White holes: Hunting the other side of a black hole
16 July 2014
Black holes suck – but do they have mirror twins that blow? A far-flung space telescope is peering into galactic nuclei to spot one for the first time
QBism: Is quantum uncertainty all in the mind?
7 May 2014
The microscopic world described by quantum theory seems a strange, confusing place – but some physicists argue it's just us who are uncertain
Quantum death: How the cosmic speed limit got frozen
26 March 2014
Light speed is no limit in the quantum world – so why can't we exploit that freedom? Perhaps because we're living in the dead husk of a richer cosmos
What is the point of a theory of everything?
9 October 2013
History tells us that we will gain from the search for ultimate truth – just not what we expected, says MacGregor Campbell
Why space has exactly three dimensions
25 September 2013
The explanation of one of reality's greatest mysteries could lie in physics we already know
Space vs time: One has to go – but which?
12 June 2013
If we want to progress towards a theory of everything, we need to understand how space and time fit together – if they do at all, says Anil Ananthaswamy
Did our cosmos exist before the big bang?
10 December 2008
What if our universe didn't emerge from nothing, but is a recycled version of one that went before? Anil Ananthaswamy investigates
