Posts

September 02, 2014

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7:38 PM | Testing the Scintillator Near the Magnetic Field: Lab Book 2014_09_01
Summary:  The x-ray detector will be very near a rather large pulsed magnetic field in the experiment.  Tests were run today to determine how the scintillator reacts, if at all to the field. There were no visually available indications that the detector had behaved differently at all.  There is one channel that has a consistently higher count when the data is analyzed, however, this doesn't appear to be statistically significant though.If you're new to the experiment, please […]
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7:08 PM | I cuculi di Midwich
Consigliato come lettura estiva da Fantascientificast, I figli dell'invasione di John Wyndham è un classico della fantascienza, trasportato al cinema in una versione di culto, Il villaggio dei dannati del 1960 girato da Wolf Rilla, e successivamente riportato al cinema nel 1995 in una delle ultime interpretazioni cinematografiche di Christopher Reeve, il Superman cinematografico, diretto per l'occasione da John Carpenter.La storia è tremendamente semplice e originale: in un […]
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5:59 PM | Tensor networks get entangled with quantum gravity
Using tensors to describe quantum entanglement shows promise as a way to understand gravity.
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3:54 PM | Over-the-counter pain reliever may restore immune function in old age
New research published in the Journal of Leukocyte Biology suggests […]
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2:23 PM | How to Teach Physics to Your Dog, Now With More “Quantum”
If you’re making your weekly check of the ebook editions (Kindle, Nook) of my quantum book (I’m not the only one who regularly looks at these, right?), you may have noticed a change: they’re no longer sporting the original black cover you’ll see in the right sidebar, but a new cover based on the smash…
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1:35 PM | Switching to copper catalysts makes solar cells cheaper
The chemical stew that makes it possible is a mix of copper nitrate, phosphorous acid, hydrogen fluoride and water. When applied to a silicon wafer, the phosphorus acid reduces the copper ions to copper nanoparticles.
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1:13 PM | Nordita Workshop for Science Writers: Wrap-Up
I didn’t write a summary of the third day of “Quantum Boot Camp” to go with my Day One and Day Two summaries for a simple reason: I would’ve needed to do that on Saturday, and I spent Saturday in transit back to the US. More than that, though, it was harder to summarize than…
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1:05 PM | Accounting for biological aggregation in heating and imaging of magnetic nanoparticles
Biological aggregation is a critical, yet often overlooked factor in the medical application of nanoparticles. Here scientists systematically characterize the effects of aggregation on both radiofrequency heating and magnetic resonance image (MRI) contrast of magnetic iron oxide nanoparticles, including detailed analysis of the aggregate morphologies based on quasi-fractal descriptions.
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12:57 PM | Single laser stops molecular tumbling motion instantly
In the quantum world, making the simple atom behave is one thing, but making the more complex molecule behave is another story. Now scientists have figured out an elegant way to stop a molecule from tumbling so that its potential for new applications, such as quantum computing, can be harnessed: shine a single laser on a trapped molecule and it instantly cools to the temperature of outer space, stopping the rotation of the molecule.
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12:54 PM | Nano-forests to reveal secrets of cells
Vertical nanowires could be used for detailed studies of what happens on the surface of cells. The findings are important for pharmaceuticals research, among other applications.
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12:50 PM | A single molecule nanoelectronics device for mobile phones
Researchers have designed a single molecule which can act as a useful building block in nanometer-size circuits. They found that the molecule functions as a resonant tunneling device, an essential component in mobile phones and WiFi.
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12:17 PM | Asian camel crickets now common in US homes
With their long, spiky legs and their propensity for eating […]
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12:14 PM | Blacks more feared, but shot less quickly in ‘deadly force lab’
Participants in an innovative Washington State University study of deadly […]
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12:12 PM | Cannabis withdrawal symptoms common among teens
More than 80 percent of participants met criteria for cannabis […]
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12:10 PM | Electric Current to Brain Boosts Memory
Discovery may help treat memory disorders resulting from stroke, Alzheimer’s […]
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12:07 PM | Single laser stops molecular tumbling motion instantly
Quantum control of molecules could lead to extremely fast computers […]
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12:04 PM | Discovery reveals how bacteria distinguish harmful versus helpful viruses
When they are not busy attacking us, germs go after […]
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12:03 PM | Research hints at why stress is more devastating for some
Some people take stress in stride; others are done in […]
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8:00 AM | What We’ve Got Here is Failure to Communicate
That’s why they play the game That claim of “statistical” predestination is confused.* We know the odds of a coin-toss or of the roll of a die before we ever pick them up. Those things are set, predetermined. But it was not preordained by the universe that Shaquille O’Neal would be a .527 free-throw shooter [...]
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6:53 AM | A nanoparticle catalyst that can be easily recycled
Researchers produced a catalyst that can be easily recycled and separated from the reaction environment.
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6:00 AM | Il primo database di tutti gli esperimenti sulla materia scura
Se è vero che è stata identificata una particella che tanto assomiglia al bosone di Higgs (post), è anche vero che il più grande problema che devono ancora affrontare i fisici è quello di risolvere il mistero della materia scura. Decine di migliaia di fisici in tutto il mondo ci stanno lavorando e finchè non […]
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1:12 AM | Tensor networks get entangled with quantum gravity
ContextQuantum Physics by Tom Siegfried 1:59pm, September 2, 2014 First of two partsOne of the first steps toward becoming a scientist is discovering the difference between speed and velocity.To nonscientists, it’s usually a meaningless distinction. Fast is fast, slow is slow. But speed, technically, refers only to rate of motion. Velocity encompasses both speed and direction. In […]
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12:08 AM | NASA’s Spitzer Telescope Witnesses Asteroid Smashup
NASA’s Spitzer Space Telescope has spotted an eruption of dust […]
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12:06 AM | The power of hidden patterns
Interfaces within materials can be patterned as a means of […]
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12:05 AM | Ride-sharing could cut cabs’ road time by 30 percent
A new analytic framework enables analysis of GPS data on […]
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12:04 AM | Nature’s tiny engineers
Coral organisms use minuscule appendages to control their environment, stirring […]

September 01, 2014

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8:52 PM | Introducing Above & Beyond: Cosmic Conversations
Some of you have probably noticed that I've been a bit absent lately.  Part of that probably has to do with our summer break on the Weekly Space Hangout (It's amazing what a deadline does for one's motivation...), but I've also been hard at work on an exciting new project.  I can finally talk about it, and today I'm thrilled to introduce you to Above & Beyond: Cosmic Conversations.The idea for Above & Beyond began to develop this past spring during the run of Fox's Cosmos: A […]
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8:15 PM | Racconti matematici
Secondo Robert Musil, nel simpatico racconto/saggio che chiude la raccolta curata da Claudio Bartocci, sono ben poche le attività umane dove la matematica non riveste alcun ruolo: Tutto ciò che esiste intorno a noi, che si muove, corre o se ne sta immobile, non soltanto sarebbe incomprensibile senza la matematica ma è effettivamente nato dalla matematica, e ne è sostenuto nella realtà concreta della propria esistenza.Anche la letteratura è fatta di […]
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6:50 PM | Engineers develop new sensor to detect individual nanoparticles as small as 10 nm
Researchers have developed a new sensor that can detect and count nanoparticles, at sizes as small as 10 nanometers, one at a time. The researchers say the sensor could potentially detect much smaller particles, viruses and small molecules.
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6:19 PM | Hey, I’ve moved!
I’m here now.
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