Posts

October 26, 2014

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5:51 PM | La máquina de Turing
A principios de 1936, un joven Alan Turing terminó un artículo que sentó en gran parte las bases de lo que sería un ordenador actual. Para resolver el Entscheidungsproblem, uno de los problemas que traían de cabeza a los matemáticos de la época, Turing ideó un sorprendente experimento mental. Había nacido la máquina de Turing. Alan empezó […]
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5:26 PM | A breakthrough toward developing DNA-based electrical circuits
Researchers report reproducible and quantitative measurements of electricity flow through long molecules made of four DNA strands, signaling a significant breakthrough towards the development of DNA-based electrical circuits.
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5:06 PM | Il (non) carnevale della fisica #2
Il premio Nobel venne assegnato per la prima volta nel 1901 a seguito delle ultime disposizioni testamentarie di Alfred Nobel, chimico e filantropo nonché inventore della dinamite.Il premio è diventato ben presto uno dei più prestigiosi al mondo e, nell'ambito della fisica, il primo a riceverlo fu lo scopritore dei raggi X, il tedesco Wilhelm Conrad Röntgenin riconoscimento dello straordinario servizio reso per la scoperta delle importanti radiazioni che in seguito […]
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3:55 PM | Ambition
  Turing Science Fiction Into Science Fact If today you were to click over to the European Space Agency’s (ESA) website you wouldn’t find it’s usual latest news items. You won’t immediately find links to articles on Space Engineering, or ESA astronaut Samantha Cristoforetti training for her November mission to the International Space Station. Instead, […]
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3:00 PM | Mi weekly selection #98
3D map shows the adolescent universe. Astronomers have pieced together an image of what the adolescent universe looked like using just four hours of […] Read more The post Mi weekly selection #98 appeared first on Mapping Ignorance. Related posts:The tough aspects of walking on sand Carnivorous plants inspire novel liquid repellent surfaces Flexible needles as the future for cancer treatment
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2:31 PM | Regge theory
http://t.co/alaasqcHwl @ulaulaman says #goodbye to #TullioRegge In quantum physics, Regge theory is the study of the analytic properties of scattering as a function of angular momentum, where the angular momentum is not restricted to be an integer but is allowed to take any complex value. The nonrelativistic theory was developed by Tullio Regge in 1957.Following Chew and Frautschi (pdf), the key papers by Tullio Regge are: Regge T. (1959). Introduction to complex orbital momenta, Il Nuovo […]
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1:50 PM | Weekend Diversion: The Forest Man of India
How one person singlehandedly created a forest, saved an island, and changed the world.Continue reading on Medium »
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12:11 PM | Tractor Beam Moving Sci-Fi Closer To Reality
Scientists have created a new 'tractor beam' device that can move objects distan...
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3:40 AM | Heating from Cosmic Chaos
Irina Zhuravleva We are pleased to welcome Irina Zhuravleva as a guest blogger today. Irina is the first author of a new paper describing a crucial role of gas turbulence in interaction between supermassive black holes and hot gas in galaxy clusters, the subject of our latest press release. Irina studied theoretical astrophysics in the department of mathematics and mechanics at Saint Petersburg State University in Russia, followed by a PhD in astrophysics at Max Planck Institute for […]
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3:21 AM | NASA's Chandra Observatory Identifies Impact of Cosmic Chaos on Star Birth
These two Chandra images of galaxy clusters - known as Perseus and Virgo - have provided direct evidence that turbulence is helping to prevent stars from forming. These new results could answer a long-standing question about how these galaxy clusters keep their enormous reservoirs of hot gas from cooling down to form stars, as discussed in our latest press release [link to PR]. Galaxy clusters are the largest objects in the Universe held together by gravity. They contain hundreds or thousands […]

October 25, 2014

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7:16 PM | Programming as Writing as Programming
In my writing studio recently, a grad student spoke about finding motivation to return from coding to writing his dissertation.  My colleague opined that he while he certainly could write for long stretches, (as it turns out, he write beautifully), that before long, the time to code would come again.  He’d drop the writing, move [...]
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4:35 PM | Ask Ethan #59: Double the flame, half the time?
When you throw more fuel on the fire, why does it burn out in less time?Continue reading on Medium »
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2:14 PM | Music therapy reduces depression in children and adolescents
Researchers at Queen’s University Belfast have discovered that music therapy […]
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2:13 PM | Best sex positions for women with bad backs
Newly published findings from the University of Waterloo are giving […]
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2:08 PM | Past Climate Change Caused by Ocean, Not Just Atmosphere
Most of the concerns about climate change have focused on […]
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2:06 PM | Ebola epidemic in Africa poised to explode
The Ebola virus disease epidemic already devastating swaths of West […]
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2:03 PM | Dinosaur noses enhanced smelling and cooled brain
It’s been millions of years since T. rex took its […]
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2:02 PM | Spotlighting the sun: Partial solar eclipse shows off massive sunspot
Astronomers with the National Science Foundation (NSF)-funded National Optical Astronomy […]
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1:57 PM | Let the Squirrels Worry About Snakes
The Curious Aztec takes you behind the scenes of scientific […]
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11:33 AM | Uncertain Dots 25: The Lightning Round
I got the time for the regular hangout wrong, and then we had some weird computer difficulties, so we only had ten minutes for Uncertain Dots this week. Which was enough time for me to say disparaging things about comic book movies, so, you know, if that interests you… Here’s the making of Interstellar story…
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9:28 AM | Physics Week in Review: October 25, 2014
Halloween is a week away, and for those in search of costume ideas, here are some Physics-Themed Halloween Costumes to make zombie Einstein proud. If Jen-Luc Piquant weren’t rocking the vampire... -- Read more on ScientificAmerican.com

October 24, 2014

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10:14 PM | Newly Discovered Microbe Is Key in Climate Change
Tiny soil microbes are among the world’s biggest potential amplifiers […]
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10:10 PM | Massive debris pile reveals risk of huge tsunamis in Hawaii
A mass of marine debris discovered in a giant sinkhole […]
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8:31 PM | Quantum Mechanics from a Classical Multiverse
Quantum mechanics can be hard to grasp, even for the physicists who use it every day. As a result, people have argued from the very birth of the field about what's really going on in quantum mechanical systems. To some extent, it doesn't really matter how you interpret things, provided everyone gets the same answers when they solve a physics problemThe plot of the movie Hot Tub Time Machine relied on the Many Worlds physics view of time travel. A new quantum mechanical approach may let us check […]
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6:48 PM | How the Comet with the Funny Name Became a Globe-Trotting Internet Meme
I consider the Rosetta spacecraft one of the most exciting space voyagers in years. It is the first probe to orbit a comet, returning images of unprecedented richness. On November 12 it will place a lander on the comet’s surface, another exploratory breakthrough. Rosetta’s target, Comet 67P (its mouthy full name is Comet 67P/Churyumov-Gerasimenko) is […]The post How the Comet with the Funny Name Became a Globe-Trotting Internet Meme appeared first on Out There.
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3:44 PM | Day o' Videos: Presentation and Flying Superconductors
The lab book today was a bit sparse and a bit dry.  This is a bit odd considering I got to play lab yesterday...  You'll see.First, here's an archival video of the presentation I did last Sunday for the TX APS section meeting here in College Station.  I fumble a few times, but the content is all there.  If you have any questions, they are very, very welcome! The second video has some kind of cool stuff in it.  Not stuff that went the way I had hoped mind you, but cool […]
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3:16 PM | Growing a Blood Vessel in a Week
The technology for creating new tissues from stem cells has […]
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3:06 PM | Molecular beacons shine light on how cells ‘crawl’
Adherent cells, the kind that form the architecture of all […]
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3:01 PM | New research offers hope in treating sleeping sickness
In early drug dis­covery, you need a starting point, says […]
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2:57 PM | Ebola’s evolutionary roots more ancient than previously thought
A new study is helping to rewrite Ebola’s family history. […]
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