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  • April 25, 2015
  • 11:53 AM
  • 52 views

NASA and warp drive: An update

by Marco Frasca in The Gauge Connection

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 »

Marco Frasca. (2005) Strong coupling expansion for general relativity. Int.J.Mod.Phys.D15:1373-1386,2006. arXiv: hep-th/0508246v3

  • April 24, 2015
  • 01:55 PM
  • 56 views

Hubble's 25th anniversary

by Perikis Livas in Chilon

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:/

  • April 23, 2015
  • 10:35 AM
  • 57 views

of microwave noodles and extragalactic signals

by Greg Fish in weird things

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

  • April 22, 2015
  • 12:29 PM
  • 47 views

Microwave goodbye to inefficient spintronic microwave detectors

by Bryn Howells in Spin and Tonic

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 »

  • April 22, 2015
  • 11:42 AM
  • 49 views

Earth Day spotlight: a survey of the aftermath of the Deepwater Horizon oil spill

by Jonathan Trinastic in Goodnight Earth

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 »

Cornwall W. (2015) Deepwater Horizon: after the oil. Science (New York, N.Y.), 348(6230), 22. PMID: 25838362  

  • April 22, 2015
  • 08:03 AM
  • 50 views

why the great void didn’t cause the cold spot

by Greg Fish in weird things

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  

  • April 21, 2015
  • 09:00 AM
  • 43 views

peeking at dark matter during a tidal strip show

by Greg Fish in weird things

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 »

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  

  • April 20, 2015
  • 03:36 PM
  • 62 views

Black hole hunters tackle a cosmic conundrum

by Dr. Jekyll in Lunatic Laboratories

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

  • April 17, 2015
  • 11:15 AM
  • 75 views

The downfall of coal: job trends in a changing energy landscape

by Jonathan Trinastic in Goodnight Earth

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 »

  • April 15, 2015
  • 08:20 AM
  • 74 views

Eyes on Environment: the organic side of fracking

by Jonathan Trinastic in Goodnight Earth

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 »

  • April 11, 2015
  • 01:58 PM
  • 108 views

A glass fiber that brings light to a standstill

by Dr. Jekyll in Lunatic Laboratories

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  

  • April 10, 2015
  • 08:06 PM
  • 119 views

The universe is expanding, but how fast?

by Dr. Jekyll in Lunatic Laboratories

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 »

  • April 8, 2015
  • 03:48 PM
  • 95 views

The heat is magnon at magnetic/non-magnetic interfaces

by Bryn Howells in Spin and Tonic

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:/

  • April 7, 2015
  • 08:00 AM
  • 118 views

Star Trek Shields For Tanks

by Mark E. Lasbury in The 'Scope

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 »

Mayseless, M. (2011) Effectiveness of Explosive Reactive Armor. Journal of Applied Mechanics, 78(5), 51006. DOI: 10.1115/1.4004398  

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  

  • April 5, 2015
  • 03:32 PM
  • 119 views

That Higgs is trivial!

by Marco Frasca in The Gauge Connection

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 »

Renata Jora. (2015) $Φ^4$ theory is trivial. arXiv. arXiv: 1503.07298v1

Marco Frasca. (2006) Proof of triviality of $λφ^4$ theory. Int.J.Mod.Phys.A22:2433-2439,2007. arXiv: hep-th/0611276v5

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

  • April 1, 2015
  • 06:36 PM
  • 93 views

Drifting towards spintronic polarimeters

by Bryn Howells in Spin and Tonic

In electronics, a drift current is one where the motion of charge carriers is dictated by an applied electric field. In contrast, a diffusive current...
The post Drifting towards spintronic polarimeters appeared first on Spin and Tonic.
... Read more »

Nádvorník, L., Haigh, J., Olejník, K., Irvine, A., Novák, V., Jungwirth, T., & Wunderlich, J. (2015) Efficient conversion of light to charge and spin in Hall-bar microdevices. Physical Review B, 91(12). DOI: 10.1103/PhysRevB.91.125205  

  • March 31, 2015
  • 08:00 AM
  • 147 views

Shields Up! Lay In A Course For Mars

by Mark E. Lasbury in The 'Scope

Deflector shields allowed Star Trek and other sci-fi franchises to have long space battles. Without them, one good strike and everyone was dead – that wouldn’t lend itself to sequels.

We don’t need shields for space battles yet, but we do need them to get to Mars. Cosmic radiation will kill or injure every astronaut unless we can deflect the radiation away from the spacecraft. We’re just about to build real deflectors, and our teachers are the magnetic fields we find ........ Read more »

  • March 29, 2015
  • 10:42 AM
  • 133 views

Accelerated loss: western Antarctice ice shelf melting at faster pace within last decade

by Jonathan Trinastic in Goodnight Earth

New satellite measurements have given unprecedented spatial and temporal resolution to Antarctice melting. The data indicates the Western shelf is melting faster than thought and the Eastern shelf is no longer gaining thickness. Important information to predict future sea level rises!... Read more »

  • March 24, 2015
  • 06:47 PM
  • 105 views

The cool car: electric vehicles show possible benefit to combat climate change

by Jonathan Trinastic in Goodnight Earth

Electric vehicles are touted as environmentally friendly, but they actually pollute more than conventional vehicles during manufacturing. However, a new report argues that, because electric vehicles are cooler, they can reduce heat and temperature increases in urban environments, leading to a net reduction in greenhouse gas emissions.... Read more »

Li C, Cao Y, Zhang M, Wang J, Liu J, Shi H, & Geng Y. (2015) Hidden benefits of electric vehicles for addressing climate change. Scientific reports, 9213. PMID: 25790439  

  • March 20, 2015
  • 12:08 PM
  • 159 views

Gliding Ant Flies like a Backward Superman

by Elizabeth Preston in Inkfish



Travel to the Amazon and flick an ant off a leaf, and you might be surprised what you see. Certain rainforest ant species can control their falls and glide back onto the trunks of the trees they came from. Unlike Superman, though, they're only flying to rescue themselves.

An ant is light enough that a drop to the forest floor might not hurt it. But the other animals cruising the ground for snacks will cause trouble for that ant soon enough. That's why many rainforest ants have evolved to ... Read more »

Munk Y, Yanoviak SP, Koehl MA, & Dudley R. (2015) The descent of ant: field-measured performance of gliding ants. The Journal of experimental biology. PMID: 25788722  

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