Post List

Physics posts

(Modify Search »)

  • August 20, 2014
  • 06:18 AM
  • 15 views

Topological Insulators Could Power Memory Devices

by dailyfusion in The Daily Fusion

A new phase of matter known as topological insulators, until recently known only for esoteric quantum-mechanical properties, might have a practical use in controlling magnetic memory and logic devices. ... Read more »

Mellnik, A., Lee, J., Richardella, A., Grab, J., Mintun, P., Fischer, M., Vaezi, A., Manchon, A., Kim, E., Samarth, N.... (2014) Spin-transfer torque generated by a topological insulator. Nature, 511(7510), 449-451. DOI: 10.1038/nature13534  

  • August 14, 2014
  • 08:27 PM
  • 82 views

Few but strong: dense tornado clusters on the rise in the United States

by Jonathan Trinastic in Goodnight Earth

Analysis of tornado frequency data over the last half-century shows that tornadoes are occurring on fewer days but with greater density and severity, indicating that climate change may be changing the local dynamics at play.... Read more »

JB Elsner, SC Elsner, TH Jagger. (2014) The increasing efficiency of tornado days in the United States. Climate Dynamics. info:/

  • August 8, 2014
  • 10:27 AM
  • 72 views

It Only Takes Six Generations to Turn a Brown Butterfly Purple

by Elizabeth Preston in Inkfish

Evolution can seem like a slow way to get things done. It took more than a billion years for Earth’s life forms to try having more than one cell. In the famous March of Progress illustration showing an ape becoming an upright human, you can almost hear the stoop-shouldered cave guy in the middle groaning, “Hurry […]The post It Only Takes Six Generations to Turn a Brown Butterfly Purple appeared first on Inkfish.... Read more »

Wasik, B., Liew, S., Lilien, D., Dinwiddie, A., Noh, H., Cao, H., & Monteiro, A. (2014) Artificial selection for structural color on butterfly wings and comparison with natural evolution. Proceedings of the National Academy of Sciences. DOI: 10.1073/pnas.1402770111  

  • August 8, 2014
  • 07:27 AM
  • 96 views

Silica Glass Keeps Solar Cells Cool

by dailyfusion in The Daily Fusion

A team of scientists led by Shanhui Fan, an electrical engineering professor at Stanford University, has used a specially patterned layer of silica glass to keep solar cells cool by shepherding away unwanted thermal radiation.... Read more »

Zhu, L., Raman, A., Wang, K., Anoma, M., & Fan, S. (2014) Radiative cooling of solar cells. Optica, 1(1), 32. DOI: 10.1364/OPTICA.1.000032  

  • August 6, 2014
  • 07:14 PM
  • 76 views

Wait before you stamp out your next cigarette! Scientists use cigarette filters in advanced energy storage materials

by Jonathan Trinastic in Goodnight Earth

Scientists in Seoul use cigarette filters as electrode materials in supercapacitors based on a simple pyrolytic carbonization process.... Read more »

  • August 3, 2014
  • 11:34 AM
  • 115 views

Ignoring the dangers: fracking development outpacing knowledge of biotic impact

by Jonathan Trinastic in Goodnight Earth

New collaborative research across several institutions indicate a complete lack of knowledge about how fracking spills, accidents, and water contamination affect nearby biospheres.... Read more »

Souther, S., Tingley, M., Popescu, V., Hayman, D., Ryan, M., Graves, T., Hartl, B., & Terrell, K. (2014) Biotic impacts of energy development from shale: research priorities and knowledge gaps. Frontiers in Ecology and the Environment, 12(6), 330-338. DOI: 10.1890/130324  

  • August 3, 2014
  • 09:52 AM
  • 101 views

New Insight Into Hot Carriers May Help Make Better Solar Cells

by dailyfusion in The Daily Fusion

Scientists at the Lawrence Berkeley National Laboratory have developed a method to study the properties of “hot carriers” in semiconductors. This method could hold the key to the design and development of new, more efficient solar cells.... Read more »

  • July 30, 2014
  • 06:48 PM
  • 92 views

Keeping lithium contained: new design allows for high energy-density anode in Li-ion batteries

by Jonathan Trinastic in Goodnight Earth

Researchers have found a way to limit volume expansion and prevent dendrite formation of all-lithium anodes. This promises to increase the energy density of Li-ion batteries!... Read more »

Zheng, G., Lee, S., Liang, Z., Lee, H., Yan, K., Yao, H., Wang, H., Li, W., Chu, S., & Cui, Y. (2014) Interconnected hollow carbon nanospheres for stable lithium metal anodes. Nature Nanotechnology. DOI: 10.1038/nnano.2014.152  

  • July 27, 2014
  • 02:17 PM
  • 158 views

Holy Grail of Battery Design: A lithium anode

by Gabriel in Lunatic Laboratories

Technology has been racing forward at an ever increasing rate. Unfortunately, anyone who owns a smartphone will tell you that the battery life doesn’t match the advancements. That is probably […]... Read more »

  • July 25, 2014
  • 05:48 AM
  • 147 views

Technique Produces Next-Gen Electrodes for Li-Ion Batteries

by dailyfusion in The Daily Fusion

Scientists at the University of Tokyo have developed an approach with industrial potential to produce nano-sized composite silicon-based powders as negative electrodes for the next generation lithium ion batteries.... Read more »

  • July 23, 2014
  • 01:21 PM
  • 200 views

Voyager has hit interstellar space…. maybe?

by Gabriel in Lunatic Laboratories

Poor Voyager, he just can’t catch a break. We’ve said it’s hit interstellar space more times than we want to admit and in 2012, the Voyager mission team announced that […]... Read more »

G. Gloeckler, & L. A. Fisk. (2014) A test for whether or not Voyager 1 has crossed the heliopause. Geophysical Research Letters. info:/10.1002/2014GL060781

  • July 22, 2014
  • 01:19 PM
  • 131 views

Optical Cables, from Thin Air!

by Gabriel in Lunatic Laboratories

It’s a project that would make Tesla proud. Just imagine being able to instantaneously run an optical cable or fiber to any point on earth, or even into space. That’s what researchers are trying to do. Did I mention it was instantaneous and involved no connection other than the air around us? Well if you are as excited as I am, then you should read on! If not, two words, laser weapons!!... Read more »

Rosenthal, E., Jhajj, N., Wahlstrand, J., & Milchberg, H. (2014) Collection of remote optical signals by air waveguides. Optica, 1(1), 5. DOI: 10.1364/OPTICA.1.000005  

Jhajj, N., Rosenthal, E., Birnbaum, R., Wahlstrand, J., & Milchberg, H. (2014) Demonstration of Long-Lived High-Power Optical Waveguides in Air. Physical Review X, 4(1). DOI: 10.1103/PhysRevX.4.011027  

  • July 21, 2014
  • 02:31 PM
  • 103 views

Do quarks grant confinement?

by Marco Frasca in The Gauge Connection

In 2010 I went to Ghent in Belgium for a very nice Conference on QCD. My contribution was accepted and I had the chance to describe my view about this matter. The result was this contribution to the proceedings. The content of this paper was really revolutionary at that time as my view about Yang-Mills […]... Read more »

Marco Frasca. (2010) Mapping theorem and Green functions in Yang-Mills theory. PoS FacesQCD:039,2010. arXiv: 1011.3643v3

Markus Hopfer, Christian S. Fischer, & Reinhard Alkofer. (2014) Running coupling in the conformal window of large-Nf QCD. arXiv. arXiv: 1405.7031v1

Markus Hopfer, Christian S. Fischer, & Reinhard Alkofer. (2014) Infrared behaviour of propagators and running coupling in the conformal window of QCD. arXiv. arXiv: 1405.7340v1

  • July 17, 2014
  • 05:36 PM
  • 142 views

X-Rays Help Study Chemical Reactions in Fuel Cells

by dailyfusion in The Daily Fusion

Using high-brilliance X-rays, scientists studied the chemical process that hydrogen fuel cells use to produce electricity.... Read more »

  • July 17, 2014
  • 06:42 AM
  • 136 views

Water and Ice in Hydrogen Fuel Cells Directly Imaged

by dailyfusion in The Daily Fusion

Scientists at the Paul Scherrer Institute (PSI) have, for the first time, directly imaged the distribution of liquid water and ice in a hydrogen fuel cell.... Read more »

Biesdorf, J., Oberholzer, P., Bernauer, F., Kaestner, A., Vontobel, P., Lehmann, E., Schmidt, T., & Boillat, P. (2014) Dual Spectrum Neutron Radiography: Identification of Phase Transitions between Frozen and Liquid Water. Physical Review Letters, 112(24). DOI: 10.1103/PhysRevLett.112.248301  

  • July 16, 2014
  • 08:58 PM
  • 135 views

Linear is beautiful! A simple relationship provides guidance for optimal battery design

by Jonathan Trinastic in Goodnight Earth

Computational physicists to the rescue! Researchers have found a linear relationship between key quantities in battery electrodes to aid the guidance of choosing optimal materials for performance.... Read more »

  • July 15, 2014
  • 02:47 PM
  • 95 views

Scientists Take Snapshots of Photosynthetic Water Oxidation

by dailyfusion in The Daily Fusion

An international collaboration of scientists led by researchers with the Lawrence Berkeley National Laboratory (Berkeley Lab) and the SLAC National Accelerator Laboratory has taken detailed “snapshots” of the four photon-step cycle for water oxidation in photosystem II, a large protein complex in green plants.... Read more »

Kern, J., Tran, R., Alonso-Mori, R., Koroidov, S., Echols, N., Hattne, J., Ibrahim, M., Gul, S., Laksmono, H., Sierra, R.... (2014) Taking snapshots of photosynthetic water oxidation using femtosecond X-ray diffraction and spectroscopy. Nature Communications. DOI: 10.1038/ncomms5371  

  • July 14, 2014
  • 03:37 PM
  • 97 views

Laser Helps Understand Inner Workings of Solar Panels

by dailyfusion in The Daily Fusion

Believe it or not we don’t totally understand how solar cells work, particularly organic thin-film photovoltaics. But scientists Canada, London and Cyprus have recently used lasers to shed some light into the process, which could help make more efficient solar panels tomorrow.... Read more »

Provencher, F., Bérubé, N., Parker, A., Greetham, G., Towrie, M., Hellmann, C., Côté, M., Stingelin, N., Silva, C., & Hayes, S. (2014) Direct observation of ultrafast long-range charge separation at polymer–fullerene heterojunctions. Nature Communications. DOI: 10.1038/ncomms5288  

  • July 13, 2014
  • 08:53 PM
  • 127 views

Photosynthesis in action: new technique resolves atomic changes in undamaged photosystems

by Jonathan Trinastic in Goodnight Earth

A new experimental technique allows scientists to see conformational changes in photosynthetic systems without damaging the samples!... Read more »

Kupitz, C., Basu, S., Grotjohann, I., Fromme, R., Zatsepin, N., Rendek, K., Hunter, M., Shoeman, R., White, T., Wang, D.... (2014) Serial time-resolved crystallography of photosystem II using a femtosecond X-ray laser. Nature. DOI: 10.1038/nature13453  

  • July 9, 2014
  • 08:58 AM
  • 145 views

New Electrochemistry Tech Makes Batteries Last Longer

by dailyfusion in The Daily Fusion

Scientists at the University of Alberta have used a process called induced fluorination to create faster-charging, longer-lasting batteries.... Read more »

join us!

Do you write about peer-reviewed research in your blog? Use ResearchBlogging.org to make it easy for your readers — and others from around the world — to find your serious posts about academic research.

If you don't have a blog, you can still use our site to learn about fascinating developments in cutting-edge research from around the world.

Register Now

Research Blogging is powered by SMG Technology.

To learn more, visit seedmediagroup.com.