quarks

"Ours is a world of nuclear giants and ethical infants. We know more about war that we know about peace, more about killing that we know about living." -Omar N. Bradley Nuclear physics is one of the most daunting, emotionally charged phrases in all of science. You can hardly say the words without the image of a mushroom cloud popping into most people's heads, followed by the devastations of radiation sickness and lingering radioactivity. Image credit: National Archives image (208-N-43888), Charles Levy, of the Nagasaki bomb. But -- as a physicist -- that's not what I think of at all. Think…
"Time is a sort of river of passing events, and strong is its current; no sooner is a thing brought to sight than it is swept by and another takes its place, and this too will be swept away." -Marcus Aurelius Every one of us does our best to come up with an accurate picture of reality, and that includes the Universe, from the smallest subatomic particles to the largest scales fathomable. But given how bizarre and counterintuitive some of our physical laws are -- even at a fundamental level -- this can be a daunting task for even those of us who are professional theoretical physicists. Image…
"I found I could say things with color and shapes that I couldn't say any other way -- things I had no words for." -Georgia O'Keeffe When it comes to the Universe, it isn't just the stuff that's in it that's important. Image credit: 2MASS Extended Source Catalog (XSC). It's also how all that stuff interacts with itself and everything else. To the best of our knowledge, there are four fundamental forces in the Universe, and they're all essential to our existence. Image credit: Stichting Maharishi University of Management, the Netherlands. Some of them are familiar, like gravitation. On the…
"Art has never been a popularity contest." -James Levine Sometimes, you might feel like you've heard it all, seen it all, and that nothing's original anymore. But I beg to differ. Just because great things have come before doesn't mean that there aren't great things happening right now. While it might "only" be a cover of a Kanye West song (which itself heavily samples a Ray Charles song, at one time featured here), I encourage you to listen to the Automatic's brilliant version of Gold Digger. And while the stories of the Universe I tell you about here don't tend to be my personal, original…
tags: nature, cosmos, streaming video This amazing video takes us on a fantastic journey from the outer universe down to the earth, then into a leaf and on into submolecular structures, for a look at quarks that make up atoms.