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Posts

April 11, 2014

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6:26 PM | In latest generation of tiny biosensors, size isn't everything
UCLA researchers overturn conventional wisdom on nanowire-based diagnostic devices.
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6:02 PM | La serie infinita del triangolo aureo
Un triangolo aureo è un triangolo isoscele in cui il rapporto tra uno dei lati uguali con la base è pari alla sezione aurea $\varphi$. Utilizzando un triangolo aureo di lato 1, è possibile dimostrare che \[1 + \frac{1}{\varphi^2} + \frac{1}{\varphi^4} + \cdots = \varphi\] \[\frac{1}{\varphi} + \frac{1}{\varphi^3} + \cdots = 1\] \[\frac{1}{\varphi} + \frac{1}{\varphi^2} + \frac{1}{\varphi^3} + \cdots = \varphi\] Il triangolo aureo qui sopra è lo screenshot della […]

Edwards S. (2014). Proof Without Words: An Infinite Series Using Golden Triangles, The College Mathematics Journal, 45 (2) 120-120. DOI:

Citation
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4:53 PM | How many quarks would a charm quark charm if a charm quark could charm quarks?
Fundamental physics is having quite a spectacular season.  In mid-March, the collaborators of the BICEP2 telescope announced the first direct evidence of cosmic inflation, answering a long-standing question about the beginnings of the universe. Now, on the heels of that … Continue reading →
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4:03 PM | Adventures in Hosing
We're trying a new type of roughing pump vacuum hosing.  We're moving away from the traditional classic, red rubber tubing and trying out Kuritech K7130 Polywire Hose!  The kids and I went on an adventure a week and a half ago to check the hosing out at Bryan Hose and Gasket!  Everyone was super nice, and it looked like if you turned up later in the day you could have free popcorn.  It was Sam's first science trip.  Jr. used to go on these all the time when were at […]
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3:46 PM | Shorter list for gamma-ray telescope sites, but no home yet
Where will host the world’s next generation ground-based γ-ray detector, the Cherenkov Telescope Array? The answer is, still no one knows. But a panel of funders have narrowed the field following a meeting in Munich, Germany, this week.  Read more
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3:34 PM | New physical phenomenon on nanowires seen for the first time
Scientists have demonstrated for the first time that both, efficient light emission and detection functionalities can be achieved in the very same nanowire material by applying mechanical strain.
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2:25 PM | The ATM strikes back - with nanoparticles
Hot foam may soon send criminals running if they damage ATM. Researchers have developed a special film that triggers an intense reaction when destroyed. The idea originates from a beetle that uses a gas explosion to fend off attackers.
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2:07 PM | Tuning a single nanowire improves solar cells and LEDs
Changes at the atom level in nanowires offer vast possibilities for improvement of solar cells and LED light. Researchers have discovered that by tuning a small strain on single nanowires they can become more effective in LEDs and solar cells.
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2:00 PM | What are we talking about when we talk about glass ceilings?
Every year, as the International Women’s Day approaches, a classic topic for the media is to summarize statistics related to the gender wage gap. […] Read more The post What are we talking about when we talk about glass ceilings? appeared first on Mapping Ignorance. Related posts:Admitting our ignorance: unexpected earthquakes under the magnifying glass The effects of Affirmative Action policies against discrimination Ownership control, transnational corporations and financial […]
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1:56 PM | Catching the (invisible) wave
Researchers create a unique semiconductor of near perfect quality with embedded nanostructures that can manipulate infrared and terahertz light.
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1:52 PM | Men, women in more satisfying relationships have lower testosterone
Many people assume that the more testosterone, the better, but […]
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1:43 PM | How the brain pays attention
Neuroscientists identify a brain circuit that’s key to shifting our […]
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1:39 PM | Inspired by a music box, engineer creates $5 chemistry set
Manu Prakash won a contest to develop the 21st-century chemistry […]
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1:37 PM | Study proposes new treatment method for alcohol problems
A study published by University at Buffalo’s Research Institute on […]
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1:34 PM | Online food reviews reveal inner self, Stanford researcher finds
Stanford scholar Dan Jurafsky found that the words used in […]
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1:33 PM | Water: Too much, too little
Climate change may accentuate seasonal differences in moisture availability Climate […]
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1:29 PM | How widespread is tax evasion?
New study puts a cost on “round-tripping,” a method investors […]
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1:19 PM | World Wildlife Fund’s Dr Brendan Fraser on improving fish diversity and conservation agriculture in Mozambique
Dr. Brendan Fisher is a research scientist at the World Wildlife Fund. His research and fieldwork lie at the nexus of conservation, development, and natural resource economics. Brendan is the author of over 50 peer-reviewed articles on topics such as poverty, human welfare, ecosystem services and biological conservation, and the co-author of two books, Valuing Ecosystem Services (Earthscan, London, 2008) and A Field Guide to Economics for Conservationists (Forthcoming, Roberts and […]
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12:48 PM | Friday Tab Clearance
This has been a pretty brutal week– classes are in full swing, and we had a candidate interview for our visiting faculty position which always eats up a bunch of time. And then Kate was out of town for work Wednesday night. So I haven’t had time for substantive blogging, and don’t really have the…
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12:23 PM | Away from home: Collaboration in a global organisation
The ‘Away from home‘ blogging series features Indian postdocs working in foreign labs recounting their experience of working there, the triumphs and challenges, the cultural differences and what they miss about India. They also offer useful tips for their Indian postdocs headed abroad. You can join in the online conversation using the #postdochat hashtag.  Read more
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10:14 AM | Additive manufacturing approach (3D printing) with nanoparticles
Researchers have created a technique called light-directed electrophoretic deposition, which uses photoconductive electrodes and DC electrical fields to dynamically and arbitrarily pattern 3D nanocomposite material.
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10:06 AM | Under the covers (Nature revealed) – 10 April 2014
In the latest Under the covers (Nature revealed) blog, Nature’s Art Director Kelly Krause discusses the inspiration behind this week’s front cover choice on brain-wide axonal projection patterns.  Read more
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10:05 AM | Is There Anything Beyond Quantum Computing?
So I’ve written an article about the above question for PBS’s website—a sort of tl;dr version of my 2005 survey paper NP-Complete Problems and Physical Reality, but updated with new material about the simulation of quantum field theories and about AdS/CFT.  Go over there, read the article (it’s free), then come back here to talk about it if […]
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8:45 AM | LHCb observes an exotic particle outside the quark model
I fisici che lavorano all’esperimento LHCb hanno pubblicato un articolo in merito ad una serie di misure di una particella esotica denominata Z(4430)-. Secondo il modello standard che descrive i quark, […]
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7:12 AM | A quick chill releases magnetic frustration
The delicate interplay between electronic properties and crystal structure explains how 'frustrated' magnets escape magnetic deadlock at low temperatures.
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7:06 AM | Individual carbon nanotubes go under the microscope
Ultrahigh-resolution optical imaging of individual carbon nanotubes is now possible under user-friendly conditions.
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2:05 AM | Could astronomers have found the first exomoon?
In the last fifteen or so years, we've discovered thousands of planets around other stars, confirming astronomers' long-held belief that our Sun isn't unique in hosting a solar system.  But, our solar system is made up of more than just planets.  Taking a step down in size, we reach the 200 or so moons which orbit our eight planets.  Smaller and fainter than planets, these are an even bigger challenge to detect. But, just maybe, we've finally found one! Which […]

April 10, 2014

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9:47 PM | Ancient spider had two sets of eyes, all the better to see you with
Stunning images of a 305-million-year-old harvestman fossil reveal ancestors of […]
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9:47 PM | Former NIH stem-cell chief joins New York foundation
Stem-cell biologist Mahendra Rao, who resigned last week as director of the US National Institutes of Health’s Center for Regenerative Medicine (CRM), has a new job. On April 9, he was appointed vice-president for regenerative medicine at the New York Stem Cell Foundation (NYSCF), a non-profit organization that funds embryonic stem cell research.  Read more
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9:12 PM | Appearance of Night-Shining Clouds Has Increased
First spotted in 1885, silvery blue clouds sometimes hover in […]
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