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Have you ever stopped to ask yourself, "what is time?" We all understand its passage intuitively, experientially. But does time actually exist? Is it a force of nature? A tangible entity? I spoke with theoretical physicist and perhaps the world's premier expert on the science of time, Sean Carroll, to learn more.
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What if you thought the earth was flat? And then you found out it isn't?
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Why should you bother to wake up tomorrow knowing that we're all going to die billions and billions of years from now when the universe turns to absolute zero, when the stars blink out, when we have nothing but neutron stars and black holes? Dr. Kaku says that billions of years from now we may be able to move to a different universe.
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Penn physicists have recently shown that simply changing particle shape can eliminate the ring-shaped stain that is left behind when drops of certain liquids dry. In this video microscopy footage from their experiments, watch as spherical particles get swept to the edges, while oblong particles are distributed consistently.
59MAG's comment,
July 31, 2014 12:43 AM
After 5 years of driking coffee every morning, Now I quite, the reasons? First, Coffee affects my stomach, I dont feel hungry. After taking a glass of coffee, my body is more tress like strong emotion than normal. I always feel hot several hours after drinking strong coffee, I would say, but the good things about coffee is making me more creative. So I dont think every one can drink coffee, I'ts depending upon the organisim of your body. I was addicted to coffee something like I cann't live a day without it. But no it's ok, and I feel more comfortable with other drink like fresh tea.
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The universe of Harry Potter is filled with magic and wonder. Yet it is not that different from the world we inhabit.
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Check out the Massey Lectures with Neil Turok: http://dft.ba/-massey Perimeter Institute for Theoretical Physics: http://pitp.ca MinutePhysics is on Google+ ...
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Have you ever wondered why you look up and see a dark sky at night? Help share science with the world: http://translate.minutephysics.com Subscribe to Minute...
QMP's curator insight,
April 29, 2013 2:53 PM
A great topic to discuss with the more curious children, and very relevant to The Dark Emperor. However, this explanation would go way over their heads, so it would be best for a teacher to tackle this first, then put it in more simpler terms for the students. I have confidence that children can understand why it is dark at night, it is simply a matter of phrasing it that is understandable for them!
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![[VIDEO] What Put the Bang in the Big Bang? | Dr. Kaku's Universe | Science News | Scoop.it](https://img.scoop.it/MkeAEfB0JrUfXAPzXO3vbzl72eJkfbmt4t8yenImKBVvK0kTmF0xjctABnaLJIm9)
Today, Dr. Kaku addresses the question of what comes next after the discovery of the Higgs Boson?
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Dr. Michio Kaku gives us a tour of some of the best science videos on the web, from Carl Sagan to CERN.
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What is mass and what does it have to do with the Higgs Boson? Part I: http://dft.ba/-higgsPart1 Also, explore a map of the big bang! http://www.bigbangregis...
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Marc Millis, former head of NASA's Breakthrough Propulsion Physics Project, explains how physicists approach the intriguing possibility of faster-than-light travel.
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The presence of this hydrophobic compound causes the grains of sand to adhere to one another and form cylinders (to minimize surface area) when exposed to water. As soon as the sand is taken out of water, it is completely dry and flows freely. These properties are achieved by covering ordinary beach sand, which contains tiny particles of pure silica, and exposing them to vapors of trimethylsilanol (CH3)3SiOH, an organosilicon compound. Upon exposure, the trimethylsilane compound bonds to the silica particles while forming water. The exteriors of the sand grains are thus coated with hydrophobic groups. Via Martin Daumiller
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How can you create a universe from nothing? Well if you calculate the total matter of the universe it is positive. If you calculate the total energy of the universe it is negative because of gravity. Gravity has negative energy. When you add the two together what do you get? Zero, so it takes no energy to create a universe. Universes are for free. A universe is a free lunch.
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When artist David Alfaro Siqueiros first discovered his "accidental painting" technique in the 1930s, the simplicity of the process coupled with its elaborate results riveted him.
Sakis Koukouvis's insight:
Research paper: http://arxiv.org/abs/1210.2770
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Neil deGrasse Tyson was asked by the Templeton Foundation to answer the question "Does the Universe Have a Purpose". Then he read his answer aloud and I drew some pictures for it. http://www.templeton.org/purpose/
Sakis Koukouvis's insight:
MinutePhysics is on Google+ - http://bit.ly/qzEwc6
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Using biological building blocks found inside a living cell, researchers have created a material that moves itself.
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You've heard of E=mc⊃2;... but you probably haven't heard the whole story. http://translate.minutephysics.com MinutePhysics is on Google+ - http://bit.ly/qzEwc...
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What was the 2012 Nobel Prize in physics given for? Capturing a single photon of light! Congrats to Serge Haroche and David Wineland http://translate.minutep...
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A team led by Bruno Giacomazzo at the University of Colorado, Boulder, and including Baker developed computer simulations that for the first time show what happens in the magnetized gas (also called a plasma) in the last stages of a black hole merger.
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When you see a tree, a big, tall, heavy one, and you wonder where did it get its mass, its thick trunk, its branches — the instinctive answer would be from the soil below, plus a little water (and, in some mysterious way, sunshine), right?
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What if we could find one single equation that explains every force in the universe? Dr. Michio Kaku explores how physicists may shrink the science of the Big Bang into an equation as small as Einstein's "e=mc^2." Thanks to advances in string theory, physics may allow us to escape the heat death of the universe, explore the multiverse, and unlock the secrets of existence. While firing up our imaginations about the future, Kaku also presents a succinct history of physics and makes a compelling case for why physics is the key to pretty much everything.
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How do you know when you've "discovered" a particle? What do we mean by "discovery"? Also, explore a map of the big bang! http://www.bigbangregistry.com Minu...
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The Higgs Boson. What more need be said? Two more Higgs videos coming soon.
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![[VIDEO] Quantum Tentacles and Flying Saucers: A Rare Look at Quantum Mechanics in Action | Science News | Scoop.it](https://img.scoop.it/6RBqkmLNYZXzIjs0vdoEBjl72eJkfbmt4t8yenImKBVvK0kTmF0xjctABnaLJIm9)
Α rare macroscopic view of the magical properties of quantum mechanics. Sharing the stage with fellow physicist Brian Green, Almog conducts the first public demonstration of an ethereal phenomenon he calls quantum levitation, sending a thin wafer super-chilled below -301 degrees F zipping around a circular track like a miniature flying saucer.
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For such a short amount of time, this video really left my wowed. I love illustrations to go with explanations during the process of teaching something new and foreign, so you can only imagine how crazy I went for this video. I even watched the other videos on their channel for MinutePhysics and even though the topics may seem "boring" or "too hard," I had no trouble keeping up with the pace of the videos and I have such a miniscule knowledge of physics. I'm not really sure how else to explain how much I enjoyed watching this video, it was extremely fun and creative and I wish I could learn everything this way, because it feels like I'm making it happen in a way and we're learning together, if that makes any sense. This was a pretty tricky subject and I loved how at the end he threw in a little bit about parallell universes and my brain just tipped over the edge to explosion. These spurts of information are definitely slightly overwhelming, but it makes you feel like you learned a lot in only two or three minutes, and I recommend anyone to watch them if they're feeling a little existential or just curious about the universe!