Posts

May 16, 2013

10:51 AM | New Microfluidic Droplet-On-Demand System From Dolomite

Fledgling spin-out company Drop-Tech has turned to microfluidics specialist Dolomite for its product development and fabrication skills to help productize the advanced and innovative Robo-Drop technology into the Mitos Dropix, a droplet-on-demand sampler that is set to make it easy to produce extremely miniaturized droplet compartments with excellent control over their contents.

8:11 AM | Wie man einen Nano-Schnurrbart wachsen lässt

Physikern an der Universität Wien ist es gelungen, eine einzigartige Nano-Struktur aus Kohlenstoff zu züchten, die einem winzigen gezwirbelten Schnurrbart ähnelt. Ihre Methode könnte wegweisend für die Bildung komplexerer Nano-Netzwerke sein.

8:00 AM | Pete Townshend Physics

Ciudad Blanca, Legendary Lost City, Possibly Found In Honduran Rain Forest Ciudad Blanca, or “The White City,” has been a legend since the days of the conquistadors, who believed the Mosquitia rain forests hid a metropolis full of gold and searched for it in the 1500s. Throughout the 1900s, archaeologists documented mounds and other signs [...]

8:00 AM | How Bing Was My Valley

HOW BING CROSBY AND THE NAZIS HELPED TO CREATE SILICON VALLEY How Bing and his influence in the recording industry helped to enable modern technology. Bonus commentary on how the new “crooning” was a bad influence on the young. Nothing ever changes.

7:09 AM | Nanotechnology could help fight diabetes

Injectable nanogel can monitor blood-sugar levels and secrete insulin when needed.

5:00 AM | Forti indizi di materia scura ‘leggera’ nel centro galattico

C’è una strana ‘emissione’ nel centro galattico ed esistono forti evidenze che si tratti di materia scura ‘leggera’ che sta per esaurirsi. Allo stesso tempo, alcuni rivelatori sotterranei ultra sensibili […]

4:57 AM | GIGO and Lightning Formation (GIGO: Gammas In, Gammas Out)

Two recent lightning studies provide interesting insight into the formation of lightning and the terrestrial gamma flashes, (also known as dark lightning), that sometimes accompany it[1][2][4]. While both studies make use of the radio pulses created during lightning formation they seem to differ in their explanations of how the radio pulses are created.Lake Maracaibo from Wikipedia http://en.wikipedia.org/wiki/Catatumbo_lightningFirst a little background on […]

Østgaard N., Gjesteland T., Carlson B.E., Collier A.B., Cummer S., Lu G. & Christian H.J. (2013). Simultaneous observations of optical lightning and terrestrial gamma ray flash from space, Geophysical Research Letters, n/a-n/a. DOI: 10.1002/grl.50466

Gurevich A.V. & Karashtin A.N. (2013). Runaway Breakdown and Hydrometeors in Lightning Initiation, Physical Review Letters, 110 (18) DOI: 10.1103/PhysRevLett.110.185005

Citation

May 15, 2013

9:45 PM | The bubble raft and lattice defects

After doing the washing up a few days ago, I returned to the sink to find a raft of bubbles had formed on the surface of the water. All the bubbles were roughly equal size, and they had aligned themselves into a close-packed lattice, as the photo...

9:12 PM | PODCAST: Red Rover

Basic Books This week on the Physics Central podcast we're talking about an awesome new book called Red Rover: Robotic Space Exploration from Genesis to the Mars Rover. The book's author Roger Wiens talks with us about his career working on robots that are sent to explore space. Wiens worked on the Genesis space mission, which launched back in 2001, and he is the principle investigator on the ChemCam instrument aboard the Curiosity Rover. In his new book he talks about the ups and downs […]

8:07 PM | Kepler: the little spacecraft that could

I come to praise Kepler, not to bury it… The Kepler Mission is one of the little NASA spacecraft that so frequently comes along, exceeds all expectations and changes our perspective of the universe. There is a good Quick History of the transit method and Kepler Mission concept on the website. Otto Struve noted in…

7:56 PM | QD Vision Announces Breakthrough QLED Efficiency Results

QD Vision, Inc., manufacturer of Color IQ optical components for LCD applications, today announced breakthrough results on next generation quantum dot light emitting devices (QLEDs), which are currently in advanced development stage.

6:14 PM | First Quantum Memory That Records The Shape of a Single Photon Unveiled in China

The world’s first quantum memory that stores the shape and structure of single photons has been built in a Chinese lab. Photons are the workhorses of modern communication. At present, […]

5:08 PM | Space eye candy: Cool cosmic dust and a bright Orion nebula

This patch of sky holds some of the youngest stars ever found. The ribbon that runs through the centre of the image is made up of dust clouds in the constellation Orion, which holds one of the busiest nearby stellar nurseries. The composite image includes both infrared light at wavelengths too long for the human [...]

4:57 PM | Chain instead of zigzag: Physicists let magnetic dipoles interact on the nanoscale

Physicists have found out how tiny islands of magnetic material align themselves when sorted on a regular lattice. Contrary to expectations, the north and south poles of the magnetic islands did not arrange themselves in a zigzag pattern, but in chains.

4:49 PM | Ultraresponsive nanotechnology scavenger for next generation water purification

New synthetic nanoparticle could disinfect, depollute, and desalinate contaminated water and then get removed magnetically.

4:11 PM | Graphene study confirms 40-year-old physics prediction

A team of researchers have directly observed a rare quantum effect that produces a repeating butterfly-shaped energy spectrum, confirming the longstanding prediction of this quantum fractal energy structure called Hofstadter's butterfly.

3:45 PM | A nanotechnology use for hemp

Researchers have come up with various electrode materials to improve the performance of supercapacitors, focussing mostly on porous carbon due to its high surface areas, tunable structures, good conductivities, and low cost. Graphene and carbon nanotubes show great potential but are costly. Researchers in Canada have now reported the successful hydrothermal-based synthesis of two-dimensional, yet interconnected, carbon nanosheets with superior electrochemical storage properties comparable to […]

3:04 PM | Black Hole Powered Jets Plow Into Galaxy

This composite image of a galaxy illustrates how the intense gravity of a supermassive black hole can be tapped to generate immense power. The image contains X-ray data from NASA's Chandra X-ray Observatory (blue), optical light obtained with the Hubble Space Telescope (gold) and radio waves from the NSF's Very Large Array (pink). This multi-wavelength view shows 4C+29.30, a galaxy located some 850 million light years from Earth. The radio emission comes from two jets of particles that are […]

2:37 PM | To shoe or not to shoe? – Running and Technology

More Than a Pair of Shoes: Running and Technology Here’s a good clip from an interview Dr Andrew Franklyn-Miller did on RTE’s Morning Edition. I especially like what he says […]

2:00 PM | Autorotating seeds: to fly or to die

Maples rely on wind, upward currents, and gusts to spread their seeds over long distances that can reach several kilometers. Maple seeds are able to […] Read moreThe post Autorotating seeds: to fly or to die appeared first on Mapping Ignorance.

1:15 PM | Innovations in nanomedicine through 'materials nanoarchitectonics'

Materials nanoarchitectonics has led to important innovations in the design and construction of systems in nanoelectronics, nanomachinery, and energy conversion. Recent publications point to the fact that the same approach may be applied successfully to other fields.

12:47 PM | Nanotechnology researchers discover a previously unknown type of friction

In search of low-friction components for ever smaller components, a team of physicists led by the professors Thorsten Hugel and Alexander Holleitner now discovered a previously unknown type of friction that they call 'desorption stick'.

11:05 AM | Orion in a new, submillimeter light

Image credit: ESO/Digitized Sky Survey 2 This dramatic new image of cosmic clouds in the constellation of Orion reveals what seems to be a fiery ribbon in the sky. This orange glow represents faint light coming from grains of cold interstellar dust, at wavelengths too long for human eyes to see. It was observed by […]

10:32 AM | Adding nanoparticles to create polymers with tailored optical and electrical properties

By adding semiconducting nanoparticles to polymers, the Materials + Technologies Research Group (GMT) of the Polytechnical College of San Sebastian of the UPV/EHU-University of the Basque Country has created nanostructured composite materials with specific optical and electrical properties that vary according to size.

10:18 AM | Il significato ‘estetico’ della simmetria

Vi siete mai chiesti che cosa è la simmetria e che cosa significhi per i fisici? In realtà, conosciamo tutti la simmetria geometrica. Ad esempio, il corpo umano possiede un […]

8:00 AM | Decisions, Decisions

I read this bit on McDonald’s Theory recently: An interesting thing happens. Everyone unanimously agrees that we can’t possibly go to McDonald’s, and better lunch suggestions emerge. Magic! It’s as if we’ve broken the ice with the worst possible idea, and now that the discussion has started, people suddenly get very creative. I call it [...]

8:00 AM | It’s All Because of the Wave

WHEN THE UNCERTAINTY PRINCIPLE GOES UP TO 11… Unfortunately, the uncertainty principle continues to be explained — at least in many pop sci accounts […] — in terms of the disturbance that a measurement causes to a quantum system. This rather frustratingly fails to put across the fundamental essence of the uncertainty principle and can [...]

7:22 AM | HyperSolar's Work on Low-cost Nanoparticles for Solar to Hydrogen Highlighted

American Chemical Society Journal highlights work on low cost nanoparticles for solar to hydrogen production performed by HyperSolar's research team at the University of California, Santa Barbara.

7:03 AM | Smarty pants: wearable electronics will recharge your life (w/video)

Imagine having a wafer-thin touchscreen on your sleeve which, like a scene out of a Philip K. Dick novel, gives you all the functionality of a smartphone without the awkwardness of a cumbersome battery. The best part about this scenario is it may not be as far from reality as you think.

5:20 AM | Secret of efficient photosynthesis is decoded

MIT researchers find that the key to purple bacteria's light-harvesting prowess lies in highly symmetrical molecules.

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