Post List

Physics posts

(Modify Search »)

  • January 29, 2016
  • 08:39 AM
  • 761 views

The power of poop: revolutionizing wastewater treatment

by Jonathan Trinastic in Goodnight Earth

A commentary in Nature proposes a complete overhaul of how we treat our wastewater. Among the benefits would be new energy-producing industry and reduce greenhouse gas emissions!... Read more »

Li, W., Yu, H., & Rittmann, B. (2015) Chemistry: Reuse water pollutants. Nature, 528(7580), 29-31. DOI: 10.1038/528029a  

  • January 22, 2016
  • 10:21 AM
  • 789 views

When good intentions don't mix: designing policy to stop global warming and improve clean cookware access

by Jonathan Trinastic in Goodnight Earth

Carbon fees are a tremendous policy tool to reduce greenhouse gas emissions. But what is their effect on other public health missions, like providing cleaner cookware to the poor in developing countries. We take a look at new research designing policy to meet both public health needs.... Read more »

  • January 16, 2016
  • 03:12 PM
  • 956 views

‘Space Warps’ and other citizen science projects reap major dividends for astrophysics

by Dr. Jekyll in Lunatic Laboratories

Thanks to the Internet, amateur volunteers known as "citizen scientists" can readily donate their time and effort to science--in fields ranging from medicine to zoology to astrophysics. The astrophysics project Space Warps offers a compelling example of why citizen science has become such a popular tool and how valuable it can be.

... Read more »

Marshall, P., Verma, A., More, A., Davis, C., More, S., Kapadia, A., Parrish, M., Snyder, C., Wilcox, J., Baeten, E.... (2015) SPACE WARPS - I. Crowdsourcing the discovery of gravitational lenses. Monthly Notices of the Royal Astronomical Society, 455(2), 1171-1190. DOI: 10.1093/mnras/stv2009  

More, A., Verma, A., Marshall, P., More, S., Baeten, E., Wilcox, J., Macmillan, C., Cornen, C., Kapadia, A., Parrish, M.... (2015) SPACE WARPS- II. New gravitational lens candidates from the CFHTLS discovered through citizen science. Monthly Notices of the Royal Astronomical Society, 455(2), 1191-1210. DOI: 10.1093/mnras/stv1965  

  • January 15, 2016
  • 12:08 PM
  • 855 views

Amazon resilience buoyed by diversity

by Jonathan Trinastic in Goodnight Earth

Previous research has suggested that the Amazon could reach a tipping point when rainforest gives way to a grassy savannah. Could this really happen? A new modeling study suggests the diversity of the Amazon could prevent such a drastic change.... Read more »

Levine NM, Zhang K, Longo M, Baccini A, Phillips OL, Lewis SL, Alvarez-Dávila E, Segalin de Andrade AC, Brienen RJ, Erwin TL.... (2015) Ecosystem heterogeneity determines the ecological resilience of the Amazon to climate change. Proceedings of the National Academy of Sciences of the United States of America. PMID: 26711984  

  • January 13, 2016
  • 03:44 PM
  • 908 views

Beam me up! Teleporting the memory of an organism

by Dr. Jekyll in Lunatic Laboratories

In "Star Trek", a transporter can teleport a person from one location to a remote location without actually making the journey along the way. Such a transporter has fascinated many people. Quantum teleportation shares several features of the transporter and is one of the most important protocols in quantum information.... Read more »

  • January 7, 2016
  • 04:14 PM
  • 146 views

High frame rate photoacoustic tomography

by Stuart in Optical Futures

New research demonstrates the use of a pulsed laser diode in photoacoustic tomography, a technique that uses light pulses to generate sound waves in a sample, which are then detected by an ultrasound detector and from which images can be produced computationally. Due to the higher pulse rate of this laser compared with those typically used, it was possible to image a dynamic system with frame rates up to 7000 frames per second. The authors also noted the benefits in terms of lower cost compared ........ Read more »

  • January 1, 2016
  • 12:02 PM
  • 125 views

Atmospheric monitoring with SLidar

by Stuart in Optical Futures

A new approach to atmospheric monitoring measures laser backscatter range as a function of angle using the Scheimpflug principle, instead of the more common time of flight method known as Lidar, which means it can monitor a large volume of space all at once. Given the name SLidar, it was demonstrated to work during daylight to measure cloud height and particle emissions using a diode laser. Compared with Lidar, the lasers and optics required for SLidar are cheaper and less complex, which could ........ Read more »

  • December 27, 2015
  • 11:07 AM
  • 1,134 views

Quantum gravity

by Marco Frasca in The Gauge Connection

Quantum gravity appears today as the Holy Grail of physics. This is so far detached from any possible experimental result but with a lot of attentions from truly remarkable people anyway. In some sense, if a physicist would like to know in her lifetime if her speculations are worth a Nobel prize, better to work […]... Read more »

Ali H. Chamseddine, Alain Connes, & Viatcheslav Mukhanov. (2014) Quanta of Geometry: Noncommutative Aspects. Phys. Rev. Lett. 114 (2015) 9, 091302. arXiv: 1409.2471v4

Ali H. Chamseddine, Alain Connes, & Viatcheslav Mukhanov. (2014) Geometry and the Quantum: Basics. JHEP 12 (2014) 098. arXiv: 1411.0977v1

  • December 24, 2015
  • 03:54 PM
  • 1,051 views

It came from planet X: ‘Forbidden’ substances on super-Earths

by Dr. Jekyll in Lunatic Laboratories

Using mathematical models, scientists have ‘looked’ into the interior of super-Earths and discovered that they may contain compounds that are forbidden by the classical rules of chemistry — these substances may increase the heat transfer rate and strengthen the magnetic field on these planets.... Read more »

  • December 18, 2015
  • 11:24 AM
  • 926 views

Beyond the headlines: clarifying the connection between healthy diets, resource use, and greenhouse gas emissions

by Jonathan Trinastic in Goodnight Earth

A recent study looking at the impact of USDA-recommended diets on the environment has received significant media attention. Some of these reports have been a bit misleading, so read here to learn the details about this important study that should impact US dietary policy!... Read more »

  • December 17, 2015
  • 07:54 AM
  • 855 views

News from CERN

by Marco Frasca in The Gauge Connection

Two days ago, CERN presented their new results at 13 TeV to the World. Of course, collected data so far are not enough for conclusive results but the these are exciting anyway. The reason is that both the collaborations, CMS and ATLAS, see a bump at around 750 GeV in the decay. Summing up the results […]... Read more »

Marco Frasca. (2015) Quantum Yang-Mills field theory. arxiv. arXiv: 1509.05292v1

  • December 15, 2015
  • 03:56 PM
  • 859 views

‘Hydricity’ concept uses solar energy to produce power round-the-clock… really?

by Dr. Jekyll in Lunatic Laboratories

Researchers are proposing a new "hydricity" concept aimed at creating a sustainable economy by not only generating electricity with solar energy but also producing and storing hydrogen from superheated water for round-the-clock power production.... Read more »

Emre Gencer, Dharik S. Mallapragada, Francois Marechal, Mohit Tawarmalani. (2015) Round-the-clock power supply and a sustainable economy via synergistic integration of solar thermal power and hydrogen processes. Proceedings of the natural sciences academy of the United States of America. info:/http://www.pnas.org/content/early/2015/12/09/1513488112.abstract

  • December 10, 2015
  • 03:22 PM
  • 787 views

Eyes on Environment: where fuel goes, water cannot follow

by Jonathan Trinastic in Goodnight Earth

Water and energy policy have long been separate despite the deep link between energy production and freshwater consumption. Here we discuss a new study examining this link with policy implications about how to prevent resource scarcity.... Read more »

Holland RA, Scott KA, Flörke M, Brown G, Ewers RM, Farmer E, Kapos V, Muggeridge A, Scharlemann JP, Taylor G.... (2015) Global impacts of energy demand on the freshwater resources of nations. Proceedings of the National Academy of Sciences of the United States of America, 112(48). PMID: 26627262  

  • December 9, 2015
  • 03:38 PM
  • 925 views

Computing with time travel

by Dr. Jekyll in Lunatic Laboratories

Why send a message back in time, but lock it so that no one can ever read the contents? Because it may be the key to solving currently intractable problems. It turns out that an unopened message can be exceedingly useful. This is true if the experimenter entangles the message with some other system in the laboratory before sending it.... Read more »

Yuan, X., Assad, S., Thompson, J., Haw, J., Vedral, V., Ralph, T., Lam, P., Weedbrook, C., & Gu, M. (2015) Replicating the benefits of Deutschian closed timelike curves without breaking causality. npj Quantum Information, 15007. DOI: 10.1038/npjqi.2015.7  

  • December 2, 2015
  • 07:47 PM
  • 793 views

The Many Stories of Climate Change

by Jonathan Trinastic in Goodnight Earth

World leaders meet in Paris this week to agree to legally binding agreements to reduce greenhouse gas emissions. In honor of this historic conference, I take a look at a few stories around the world about how climate change already influences our global civilization.... Read more »

  • November 27, 2015
  • 10:45 PM
  • 850 views

A Treatise on the Physics and Psychology of Heavy Metal Music

by Amiya Sarkar in Physiology physics woven fine

A rather panoramic view of the heavy metal arena encompassing various aspects of science and psychology. ... Read more »

Jesse L. Silverberg, Matthew Bierbaum, James P. Sethna, & Itai Cohen. (2013) Collective Motion of Moshers at Heavy Metal Concerts. 10.1103/PhysRevLett.110.228701. arXiv: 1302.1886v1

  • November 27, 2015
  • 03:43 PM
  • 832 views

How to Build an Ant Bridge: Start Small

by Elizabeth Preston in Inkfish



You know when you're out walking with a big horde of your friends and you come to a chasm you can't step across, so a bunch of you clasp each other's limbs and make yourselves into a bridge for the rest to walk on?

...No?

Eciton army ants do this. And they're not the only ants that build incredible structures out of their strong, near-weightless bodies. Weaver ants make chains between leaves by holding onto each other's waists. Fire ants cling together to form rafts and survive floodin........ Read more »

Reid CR, Lutz MJ, Powell S, Kao AB, Couzin ID, & Garnier S. (2015) Army ants dynamically adjust living bridges in response to a cost-benefit trade-off. Proceedings of the National Academy of Sciences of the United States of America. PMID: 26598673  

  • November 21, 2015
  • 10:40 AM
  • 803 views

Where Are All the Wearables We Want to Wear?

by Aurametrix team in Health Technologies

Millions of years ago our ancestors straightened up and started carrying tools around, instead of dropping them after use. And so technology became a part of daily routine.​As time passed, more useful tools were made than it was feasible to carry or wear over the shoulder. One solution to this problem was monetary exchange, the other was a better technology. Wearables promised to add more convenience than carryables and, ever since humans started to wear clothes some 170,000 years ag........ Read more »

Bouzouggar A, Barton N, Vanhaeren M, d'Errico F, Collcutt S, Higham T, Hodge E, Parfitt S, Rhodes E, Schwenninger JL.... (2007) 82,000-year-old shell beads from North Africa and implications for the origins of modern human behavior. Proceedings of the National Academy of Sciences of the United States of America, 104(24), 9964-9. PMID: 17548808  

Sungmee Park, & Jayaraman S. (2014) A transdisciplinary approach to wearables, big data and quality of life. Conference proceedings : .. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference, 4155-8. PMID: 25570907  

  • November 18, 2015
  • 03:15 PM
  • 923 views

Making climate change local: how to motivate city-wide adaptation strategies

by Jonathan Trinastic in Goodnight Earth

More than 80% of the US population lives in cities, making their adaptation strategies one of the most important political decisions in the coming decades. Here we discuss a new study that identifies reasons why some cities have already prepared response programs while others haven't yet started.... Read more »

  • November 11, 2015
  • 11:10 AM
  • 841 views

Short-term stability and long-term collapse: exploring the complex behavior of the Antarctic ice sheet

by Jonathan Trinastic in Goodnight Earth

A recent study indicates that Antarctic sea ice is growing, but what about its long-term evolution? Read on to see what scientists have discovered about the Antarctic's future.... 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.