Of course there's nothing ordinary about an octopus. It's the animal that showed us spinelessness doesn't have to mean a lack of smarts. But when researchers brought some octopuses into the lab to study exactly how the animals move, their findings were bizarre—both predictably and unpredictably.
Scientists at the Hebrew University of Jerusalem studied nine common octopuses (Octopus vulgaris) that fishers had scooped out of the ocean for them. Once the animals got comfortable in the lab, t........ Read more »
Levy G, Flash T, & Hochner B. (2015) Arm Coordination in Octopus Crawling Involves Unique Motor Control Strategies. Current biology : CB. PMID: 25891406
Back in the day, I argued that if we were going to get serious about space exploration, we also had to budget for large, luxury spacecraft rather than just capsules in which we would cram the brave men and women we’d be sending to other worlds with a pat on the back for agreeing to deal with the discomfort and damage to their bodies. Among the reasons listed were the basic physiological problems of spending many months in zero gravity, and mental health hazards of boredom and cabin fever. ........ Read more »
Vipan K. Parihar, Barrett Allen, Katherine K. Tran, Trisha G. Macaraeg, Esther M. Chu, Stephanie F. Kwok, Nicole N. Chmielewski, Brianna M. Craver, Janet E. Baulch, Munjal M. Acharya, Francis A. Cucinotta, & Charles L. Limoli. (2015) What happens to your brain on the way to Mars. Science Advances, 1(4). info:/10.1126/sciadv.1400256
How can we mimic plant photosynthesis to move to a fossil-free economy? Read here to find out!... Read more »
Sun, K., Saadi, F., Lichterman, M., Hale, W., Wang, H., Zhou, X., Plymale, N., Omelchenko, S., He, J., Papadantonakis, K.... (2015) Stable solar-driven oxidation of water by semiconducting photoanodes protected by transparent catalytic nickel oxide films. Proceedings of the National Academy of Sciences, 201423034. DOI: 10.1073/pnas.1423034112
The alien civilizations we search might be too advanced to be found.
... Read more »
Griffith, R., Wright, J., Maldonado, J., Povich, M., Sigurđsson, S., & Mullan, B. (2015) THE Ĝ INFRARED SEARCH FOR EXTRATERRESTRIAL CIVILIZATIONS WITH LARGE ENERGY SUPPLIES. III. THE REDDEST EXTENDED SOURCES IN . The Astrophysical Journal Supplement Series, 217(2), 25. DOI: 10.1088/0067-0049/217/2/25
How will ocean acidification from anthropogenic CO2 emissions affect marine life? Recent work studying a similar time during the Permian extinction 200 million years ago gives a clue.... Read more »
Clarkson MO, Kasemann SA, Wood RA, Lenton TM, Daines SJ, Richoz S, Ohnemueller F, Meixner A, Poulton SW, & Tipper ET. (2015) Ocean acidification and the Permo-Triassic mass extinction. Science (New York, N.Y.), 348(6231), 229-32. PMID: 25859043
There is some excitement in the net about some news of Harold White’s experiment at NASA. I have uncovered it by chance at a forum. This is a well-frequented site with people at NASA posting on it and regularly updating about the work that they are carrying out. You can also have noticed some activity […]... Read more »
Δεδομένης της ολοκλήρωσης των 25 χρόνων λειτουργίας του, παρουσιάζονται μερικές από τις σημαντ&iota........ Read more »
Periklis D. Livas. (2015) Hubble's 25th anniversary. Chilon. info:/
FRBs just can’t seem to catch a break this month. First, they were an alien signal. Then just as quickly as they were attributed to aliens because the Daily Fail decided to get creative with two out of context words and no one seemed to bother to fact check them, the bursts were called a false signal caused by microwave interference. Not just any microwave interference mind you, but the kind in which you warm up leftovers [...]... Read more »
E. Petroff, E. F. Keane, E. D. Barr, J. E. Reynolds, J. Sarkissian, P. G. Edwards, J. Stevens, C. Brem, A. Jameson, S. Burke-Spolaor.... (2015) Identifying the source of perytons at the Parkes radio telescope. n/a. arXiv: 1504.02165v1
Magnetic tunnel junctions (MTJs) which comprise of a free magnetic layer (whose magnetization orientation can be manipulated) and a fixed magnetic layer (whose magnetization is...
The post Microwave goodbye to inefficient spintronic microwave detectors appeared first on Spin and Tonic.
... Read more »
Gui, Y., Xiao, Y., Bai, L., Hemour, S., Zhao, Y., Houssameddine, D., Wu, K., Guo, H., & Hu, C. (2015) High sensitivity microwave detection using a magnetic tunnel junction in the absence of an external applied magnetic field. Applied Physics Letters, 106(15), 152403. DOI: 10.1063/1.4918677
Five years ago, the Deepwater Horizon oil spill changed the trajectory of ecosystems in the Gulf of Mexico. We take a look at how species have been affected and what we can do to prevent another disaster.... Read more »
Remember the anomalous Cold Spot, the bizarre, low temperature area spotted in the maps of the Cosmic Microwave Background Radiation, or CMBR for short, the echo the Big Bang which gives us a very high level overview of the structure of our universe? Cosmologists bristled at an anomaly stretching some 1.8 billion light years and seemingly violating what we thought was a universal rule [...]... Read more »
Szapudi, I., Kovacs, A., Granett, B., Frei, Z., Silk, J., Burgett, W., Cole, S., Draper, P., Farrow, D., Kaiser, N.... (2015) Detection of a supervoid aligned with the cold spot of the cosmic microwave background. Monthly Notices of the Royal Astronomical Society, 450(1), 288-294. DOI: 10.1093/mnras/stv488
Dark matter is a substance that makes up nearly all mass in the universe, but decades after we discovered it, all we have are indirect measurements which show us that it’s there in very large amounts, forming galactic halos, but ultimately, little else. It doesn’t seem to interact with any of the stuff that makes stars, dust, and planets, it emits or reflects no radiation, and this utter lack of interesting properties we could study [...]... Read more »
Harvey, D., Massey, R., Kitching, T., Taylor, A., & Tittley, E. (2015) The nongravitational interactions of dark matter in colliding galaxy clusters. Science, 347(6229), 1462-1465. DOI: 10.1126/science.1261381
Massey, R., Williams, L., Smit, R., Swinbank, M., Kitching, T., Harvey, D., Jauzac, M., Israel, H., Clowe, D., Edge, A.... (2015) The behaviour of dark matter associated with four bright cluster galaxies in the 10 kpc core of Abell 3827. Monthly Notices of the Royal Astronomical Society, 449(4), 3393-3406. DOI: 10.1093/mnras/stv467
While mass media was busy misquoting Stephen Hawking and arguing about black holes, astrophysicists have been hard at work trying to solve still unanswered questions about them. Now a team has not only proven that a supermassive black hole exists in a place where it isn’t supposed to be, but in doing so have opened a new door to what things were like in the early universe.... Read more »
Thomas J. Whalen, Ryan C. Hickox, Amy E. Reines, Jenny E. Greene, Gregory R. Sivakoff, Kelsey E. Johnson, David M. Alexander, & Andy D. Goulding. (2015) Variable Hard X-ray Emission from the Candidate Accreting Black Hole in Dwarf Galaxy Henize 2-10. The Astrophysical journal . arXiv: 1504.03331v1
Coal jobs have decreased dramatically in the past seven years, but are renewable energy and natural gas jobs compensating? New policy work reveals the geographical patterns in job changes that do not bode well for coal-producing states.... Read more »
Haerer, D., & Pratson, L. (2015) Employment trends in the U.S. Electricity Sector, 2008–2012. Energy Policy, 85-98. DOI: 10.1016/j.enpol.2015.03.006
Little research to date has looked into the organic chemicals from fracking fluid that get into surrounding groundwater - here's how science can help!... Read more »
Ferrer, I., & Thurman, E. (2015) Chemical constituents and analytical approaches for hydraulic fracturing waters. Trends in Environmental Analytical Chemistry, 18-25. DOI: 10.1016/j.teac.2015.01.003
Light is an extremely useful tool for quantum communication, but it has one major disadvantage: it usually travels at the speed of light and cannot be kept in place. A team of scientists at the Vienna University of Technology has now demonstrated that this problem can be solved – not only in strange, unusual quantum systems, but in the glass fiber networks we are already using today.... Read more »
Sayrin, C., Clausen, C., Albrecht, B., Schneeweiss, P., & Rauschenbeutel, A. (2015) Storage of fiber-guided light in a nanofiber-trapped ensemble of cold atoms. Optica, 2(4), 353. DOI: 10.1364/OPTICA.2.000353
We are expanding, well more accurately the universe is expanding. However researchers have found certain types of supernovae, or exploding stars, are more diverse than previously thought. The results have implications for big cosmological questions, such as how fast the universe has been expanding since the Big Bang. Most importantly, the findings hint at the possibility that the acceleration of the expansion of the universe might not be quite as fast as textbooks say.... Read more »
Milne, P., Foley, R., Brown, P., & Narayan, G. (2015) THE CHANGING FRACTIONS OF TYPE IA SUPERNOVA NUV–OPTICAL SUBCLASSES WITH REDSHIFT. The Astrophysical Journal, 803(1), 20. DOI: 10.1088/0004-637X/803/1/20
A magnon is a quantised spin wave, i.e. a collective excitation of the spin angular momentum that is associated with electrons in a crystal structure. ...
The post The heat is magnon at magnetic/non-magnetic interfaces appeared first on Spin and Tonic.
... Read more »
Scott A. Bender and Yaroslav Tserkovnyak. (2015) Interfacial spin and heat transfer between metals and magnetic insulators. Physical Review B, 140402. info:/
Star Trek deflectors absorbed or deflected energy beams, but would they work against bullets or asteroids? Scientists are on working on armors and plasma systems that can stop projectiles. In some cases we use explosions to stop explosions. In others, tanks are turned into electrical pulse generators that zap incoming rockets. But the most amazing is the wall of exploding plasma that will be the first true defensive energy shield.... Read more »
Yoo, Y., Zheng, H., Kim, Y., Rhee, J., Kang, J., Kim, K., Cheong, H., Kim, Y., & Lee, Y. (2014) Flexible and elastic metamaterial absorber for low frequency, based on small-size unit cell. Applied Physics Letters, 105(4), 41902. DOI: 10.1063/1.4885095
Grześkiewicz, B., Sierakowski, A., Marczewski, J., Pałka, N., & Wolarz, E. (2014) Polarization-insensitive metamaterial absorber of selective response in terahertz frequency range. Journal of Optics, 16(10), 105104. DOI: 10.1088/2040-8978/16/10/105104
Notwithstanding LHC has seen the particle, the Higgs sector of the Standard Model has some serious problems. This fact yielded more than one headache to physicists. One of these difficulties is called technically “triviality“. The scalar field theory, that is so well defined classically, does not exist as a quantum field theory unless is non-interacting. […]... Read more »
Aizenman, M. (1981) Proof of the Triviality of Field Theory and Some Mean-Field Features of Ising Models for . Physical Review Letters, 47(12), 886-886. DOI: 10.1103/PhysRevLett.47.886
Igor M. Suslov. (2010) Asymptotic Behavior of the \Beta Function in the Φ^4 Theory: A Scheme Without Complex Parameters. J.Exp.Theor.Phys.111:450-465,2010. arXiv: 1010.4317v1
I. L. Bogolubsky, E. -M. Ilgenfritz, M. Müller-Preussker, & A. Sternbeck. (2009) Lattice gluodynamics computation of Landau-gauge Green's functions in the deep infrared. Phys.Lett.B676:69-73,2009. arXiv: 0901.0736v3
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