AS MUCH AS we may want to, we cannot go back in time. Is this just our current reality, or is the direction of time fixed by the laws of the universe? One clue to explain this “arrow” of time is the ...

Graduate seminar, Fall 2008. Open to graduate students only. Adam Elga (follow link for contact information, office hour). Class meeting time: Mondays 10:00am-12:50pm. Location: Marx Hall 201 Seminar ...

One of the most basic facts of life is that the future looks different from the past. But on a grand cosmological scale, they may look the same The universe does not look right. That may seem like a ...

Human perception of time is an illusion constructed by the brain, based on memory and anticipation, limited to an experience of the "now" lasting approximately one second. This subjective experience ...

Accuracy may come at a cost. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. What’s the price of an accurate clock? Entropy, a new study has ...

One of the more curious challenges in physics is to understand the nature of time. At the microscopic level, the laws of physics are symmetric with respect to time—they work just as well whether time ...

Can a demon defeat the 2nd Law of Thermodynamics? The second law of thermodynamics – the law that entropy must, on average, increase – has been interpreted as the inevitability of the decay of ...

Sometimes, halfway through reading a paper, I wonder if the editors have been Sokaled (if this is not a word, it really should be), fooled by a vaguely scientific-sounding parody. This is one of those ...