Brian Greene's Fabric of the Cosmos is online in its entirety on NOVA's website, in four one-hour episodes. Time, Space, Quantum Mechanics, Multiverses.
posted by empath on Nov 26, 2011 - 32 comments

Ten Things Everyone Should Know About Time.
posted by empath on Sep 1, 2011 - 131 comments

Sean Carroll: Distant time and the hint of a multiverse [more inside]
posted by kliuless on May 15, 2011 - 52 comments

The concept of time as a way to measure the duration of events is not only deeply intuitive, it also plays an important role in our mathematical descriptions of physical systems. For instance, we define an object’s speed as its displacement per a given time. But some researchers theorize that this Newtonian idea of time as an absolute quantity that flows on its own, along with the idea that time is the fourth dimension of spacetime, are incorrect. They propose to replace these concepts of time with a view that corresponds more accurately to the physical world: time as a measure of the numerical order of change.
posted by finite on Apr 25, 2011 - 127 comments

The thermal time hypothesis. [more inside]
posted by CheeseDigestsAll on Mar 5, 2009 - 36 comments

"It doubtless seems highly paradoxical to assert that Time is unreal, and that all statements which involve its reality are erroneous. ... I believe that time is unreal. But I do so for reasons which are not, I think, employed by any of the philosophers whom I have mentioned, and I propose to explain my reasons in this paper." ~McTaggart, The Unreality of Time, 1908. (Bonus: The Kant Song.)
posted by voltairemodern on Feb 10, 2009 - 96 comments

Man loses father to smoking 50 years ago. Builds time machine.
posted by loquacious on Nov 6, 2008 - 143 comments

Raft to the Future: An article about the weirdness of physical models of the universe, how that weirdness correlates to the inherent incompleteness of mathematical systems, and how time itself can emerge at the fringes of these incomplete models.
posted by knave on Nov 6, 2006 - 46 comments

Imagining the Tenth Dimension (Flash). 10th dimensional physics and string theory don't get any easier than this.
posted by Jimbob on Jul 4, 2006 - 76 comments

We are hosting the first and only Time Traveler Convention at MIT in one week, and WE NEED YOUR HELP! Anyone plan to attend?
posted by Ricky_gr10 on May 2, 2005 - 64 comments

Interesting article on how science will change our understanding of time. [Via AlDaily]
posted by gregb1007 on Jan 1, 2004 - 16 comments

The cable clock. This clocks tells time, just like any other clock, but the movement of the hands is hypnotic and beautiful. To physicists, time is defined by quantum mechanics. A photon with energy h (Planck's constant) behaves as though it were oscillating once per second. For Philosphers, time is less concrete, and they love to talk about it. Western society lives by the clock - does it make a difference if this is the kind of clock that you live by? After all, everyone knows that time is money. If you have to be a clock watcher, does it help if the clock is as calming as the Cable Clock is?
posted by kristin on Sep 9, 2003 - 20 comments

A bold paper published in the August issue of Foundations of Physics Letters seems set to change the way we think about the nature of time and its relationship to motion and classical and quantum mechanics. The work also appears to provide solutions to Zeno's paradoxes. (Via Kurzweilai.net. More inside...)
posted by Pinwheel on Aug 1, 2003 - 41 comments