Scientists at the Swiss Federal Institute of Technology in Lausanne (EPFL), Switzerland, have combined antennas with solar panels to work together with surprising efficiency. This technology will allow to create more compact and more lightweight satellites. It can also be applied in autonomous antenna systems.... Read more »
Philippe Dreyer, Monica Morales-Masis, Sylvain Nicolay, Christophe Ballif, & Julien Perruisseau-Carrier. (2013) Copper and Transparent-Conductor Reflectarray Elements on Thin-Film Solar Cell Panels. IEEE. arXiv: 1311.4737v1
Shapes of Things to Come: Exotic Shapes for Liquid Drops Have Many Possible Uses
Stabilizing Liquid Drops in Nonequilibrium Shapes by the Interfacial Jamming of Nanoparticles
Polymer Scientists Jam Nanoparticles, Trapping Liquids into Useful Shapes
University of Massachusetts Amherst... Read more »
Cui M, Emrick T, & Russell TP. (2013) Stabilizing liquid drops in nonequilibrium shapes by the interfacial jamming of nanoparticles. Science (New York, N.Y.), 342(6157), 460-3. PMID: 24159042
Scientists have theoretically found previously unknown layers on stars that enhance the mystery of the mechanism through which neutron stars heat up.
In astronomy, neutron star is a star composed of neutrons. It is a celestial body consisting entirely of a very dense compact mass of neutrons, the remnant of a star that has collapsed under its own gravity.
It is a neutral elementary particle. Technical........ Read more »
H. Schatz et al. (2013) Strong neutrino cooling by cycles of electron capture and β− decay in neutron star crusts. Nature. DOI: 10.1038/nature12757
Scientists have presented a new way to study Bose-Einstein condensates (BECs) that are the coldest objects in the Universe by canceling the damage caused by light.
New Journal of Physics
Bose-Einstein condensates (BECs):
BECs are considered as the coldest objects in the universe as they are very close to absolute zero, i.e. very near 0 K or −273.15 °C. They consist of few clusters of atoms. At such temperature, atoms behave as ........ Read more »
M R Hush et al. (2013) Controlling spontaneous-emission noise in measurement-based feedback cooling of a Bose–Einstein condensate. New Journal of Physics. DOI: 10.1088/1367-2630/15/11/113060
Scientists have estimated the age of Mars crust by studying zircons found within the Martian meteorite NWA 7533. Age of crust of red plant is found to be about 4.43 million years.
The meteorite NWA (North West Africa) 7533 was discovered by Bedouin tribesmen in the Sahara desert. It is chemically similar to Martian soil analyzed by Martian Rovers that enables the researchers to study the Martian crustal processes and conditions. ........ Read more »
M. Humayun et al. (2013) Origin and age of the earliest Martian crust from meteorite NWA 7533. Nature. DOI: 10.1038/nature12764
Scientists have reported that galaxies in groups might have less gas than lonely galaxies. This gas acts as fuel and is helpful in production of more stars.
Monthly Notices of the Royal Astronomical Society (MNRAS)
A team of astronomers used Arecibo radio telescope and measured the hydrogen content of 250 galaxies in different locations and found that lonely galaxies have more gas than the group of galaxies.
Intergal........ Read more »
Barbara Catinella et al. (2013) The GALEX Arecibo SDSS Survey – VIII. Final data release. The effect of group environment on the gas content of massive galaxies. MNRAS. DOI: 10.1093/mnras/stt1417
A study shows for the first time that X-ray lasers can be used to generate a complete 3-D model of a protein without any prior knowledge of its structure.
An international team of researchers working at the Department of Energy’s (DOE) SLAC National Accelerator Laboratory produced from scratch an accurate model of lysozyme, a well-studied enzyme found in egg whites, using the Linac Coherent Light Source (LCLS) X-ray laser and sophisticated computer analysis tools.... Read more »
Thomas R. M. Barends,, Lutz Foucar,, Sabine Botha,, R. Bruce Doak,, Robert L. Shoeman,, Karol Nass,, Jason E. Koglin,, Garth J. Williams,, Sébastien Boutet,, Marc Messerschmidt,.... (2013) De novo protein crystal structure determination from X-ray free-electron laser data. Nature . DOI: 10.1038/nature12773
Scientists have found the neutrinos that are far beyond the known energy of neutrinos expected to be produced in the Earth’s atmosphere.
Neutrinos are the elementary particles that are thought to be produced outside of our solar system. High-energy neutrinos have the ability to pass through normal matter and billions of them pass through Earth every second.
The IceCube neutrino observatory at the South Pole pre........ Read more »
IceCube Collaboration. (2013) Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector. Science. DOI: 10.1126/science.1242856
Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector
We report on results of an all-sky search for high-energy neutrino events interacting within the IceCube neutrino detector conducted between May 2010 and May 2012.
Science | DOI: 10.1126/science.1242856
Further Reading and Links
IceCube pushes neutrinos to the forefront of astronomy
“This is the first indication of very high-energy neutrinos coming from outside our solar system, with en........ Read more »
IceCube Collaboration. (2013) Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector. Science AAAS. DOI: 10.1126/science.1242856
The emerging field of phononics opens a number of exciting possibilities in the energy field. In a recent review article in Nature, Martin Maldovan of the Georgia Institute of Technology explains how new ideas and devices that make use of phononic properties can be used to control both sound and heat.... Read more »
Researchers have developed the first electrode that can heal itself utilizing the power of self-healing polymer.
“The ability to repair damage spontaneously, which is termed self-healing, is an important survival feature in nature because it increases the lifetime of most living creatures,” Researchers wrote.
“This feature is highly desirable for rechargeable batteries because the lifetime of high-capac........ Read more »
Chao Wang et al. (2013) Self-healing chemistry enables the stable operation of silicon microparticle anodes for high-energy lithium-ion batteries. Nature Chemistry. DOI: 10.1038/nchem.1802
Black hole jets pack a powerful punch
High-speed ‘jets’ spat out by black holes pack a lot of power because they contain heavy atoms, astronomers have found.
“Jets from supermassive black holes help determine a galaxy’s fate.”
Dr Tasso Tzioumis, CSIRO
ESA XMM-Newton Mission Overview
(Report) Black hole boasts heavyweight jets
Mesons | Hyper Physics | Georgia State niversity
NATURE | LETTER
Baryons in the relativistic jets of the ........ Read more »
María Díaz Trigo, James C. A. Miller-Jones, Simone Migliari, Jess W. Broderick, & Tasso Tzioumis. (2013) Baryons in the relativistic jets of the stellar-mass black-hole candidate 4U 1630-47. Nature. DOI: 10.1038/nature12672
Researchers from the University of Pennsylvania and Drexel University have experimentally shown that ferroelectric solar cells based on perovskite oxides can absorb three to six times more solar energy than the ones based on current ferroelectric materials, opening a road to inexpensive, easy to manufacture and efficient solar cells.... Read more »
Ilya Grinberg, D. Vincent West, Maria Torres, Gaoyang Gou, David M. Stein, Liyan Wu, Guannan Chen, Eric M. Gallo, Andrew R. Akbashev, Peter K. Davies, Jonathan E. Spanier, Andrew M. Rappe. (2013) Perovskite oxides for visible-light-absorbing ferroelectric and photovoltaic materials. Nature. DOI: 10.1038/nature12622
Researchers at Duke University’s Pratt School of Engineering have created an inexpensive material capable of harvesting energy from microwaves.... Read more »
Hawkes A.M., Katko A.R., & Cummer S.A. (2013) A microwave metamaterial with integrated power harvesting functionality. Applied Physics Letters. DOI: 10.1063/1.4824473
Quantum teleportation is perhaps the closest that modern technology has come to developing a sort of teleporter for transmitting physical objects across distances without the use of some physical method of moving them. Quantum teleportation involves transmitting the exact state that an atom or photon exists in, and then using this data at a different … Read More →... Read more »
Satyabrata Adhikari, A S Majumdar, Dipankar Home, A K Pan, & P Joshi. (2012) Quantum teleportation using non-orthogonal entangled channels. Phys. Scr. DOI: 10.1088/0031-8949/85/04/045001
Whatever our opinion on nanotechnology may be, what we don’t realise is that we are exposed to nanoparticles in our everyday life, not only through pollution, but by means of the products we use daily. So, here’s a short list of some of these hidden engineered nanoparticles.... Read more »
Cristina Buzea, Ivan I. Pacheco, & Kevin Robbie. (2008) Nanomaterials and nanoparticles: Sources and toxicity. Published in Biointerphases Vol. 2, issue 4 (2007) pages MR17 - MR71. arXiv: 0801.3280v1
Mueller M., Nowack B. (2008) Exposure modelling of engineered nanoparticles in the environment. Environmental Science . info:/
Nohynek GJ, Lademann J, Ribaud C, & Roberts MS. (2007) Grey goo on the skin? Nanotechnology, cosmetic and sunscreen safety. Critical reviews in toxicology, 37(3), 251-77. PMID: 17453934
Nowack B., Krug H.F., Height M. (2011) 120 years of nanosilver history: implications for policy makers. . Environmental Science . DOI: 10.1021/es103316q
Peters R, Kramer E, Oomen AG, Rivera ZE, Oegema G, Tromp PC, Fokkink R, Rietveld A, Marvin HJ, Weigel S.... (2012) Presence of nano-sized silica during in vitro digestion of foods containing silica as a food additive. ACS nano, 6(3), 2441-51. PMID: 22364219
Rai M., Yadav A., Gade A. (2008) Silver nanoparticles as a new generation of antimicrobials. Biotechnology Advances . DOI: 10.1016/j.biotechadv.2008.09.002
All aboard the nanotrain network
Tiny self-assembling transport networks, powered by nano-scale motors and controlled by DNA, have been developed by scientists at Oxford University and Warwick University.
The system can construct its own network of tracks spanning tens of micrometres in length, transport cargo across the network and even dismantle the tracks.___ The University of Oxford
Transport and self-organization across different length scales powered by m........ Read more »
Adam J. M. Wollman, Carlos Sanchez-Cano, Helen M. J. Carstairs, Robert A. Cross, & Andrew J. Turberfield. (2013) Transport and self-organization across different length scales powered by motor proteins and programmed by DNA. Nature Nanotechnology. DOI: 10.1038/nnano.2013.230
Scientists have predicted a new family of four-quark objects after the discovery of electrically charged subatomic particles such as Zc(4020) and Zc(3900).
A quark is an elementary particle and a fundamental constituent of matter. They combine to form composite particles such as protons and neutrons. They cannot be observed directly.
Previously, this year in April, The Beijing Spectrometer (BESIII) collaboration, found a mysterious........ Read more »
BESIII collaboration, M. Ablikim, M. N. Achasov et al. (2013) Observation of a charged charmoniumlike structure in e e−→(D∗D¯∗)±π∓ at √s. arXiv. arXiv: 1308.2760v1
Scientists have proposed that giant 't Hooft-Polyakov monopole could be the potential candidates for dart matter.
In astronomy and cosmology, dark matter is a matter - neither a planet nor a star - hypothesized to exist in the universe because of observed gravitational effects. It is thought to comprise a substantial part of the mass of the universe but remains as yet undetected by direct observation.
By compos........ Read more »
Physicists discover new properties of energy transport in experiments on “atomic giants” By realizing an artificial quantum system, physicists at Heidelberg University have simulated key processes of photosynthesis on a quantum level with high spatial and temporal resolution. In their experiment with Rydberg atoms the team of Prof. Dr. Matthias Weidemüller and Dr. Shannon Whitlock … Read More →... Read more »
G. Günter, H. Schempp, M. Robert-de-Saint-Vincent, V. Gavryusev, S. Helmrich, C.S. Hofmann, & S. Whitlock, M. Weidemüller. (2013) Observing the Dynamics of Dipole-Mediated Energy Transport by Interaction Enhanced Imaging. Science Express. DOI: 10.1126/science.1244843
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