Physics
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Free Technology for Teachers: Create Virtual Chemical Reactions on Your iPad or Android Tablet

Free Technology for Teachers: Create Virtual Chemical Reactions on Your iPad or Android Tablet | Physics | Scoop.it

"This free iPad app allows students to virtually create chemical reactions. To create the reactions students simply drag elements from the periodic table to the “reaction area.”"


Via Rhondda Powling, John Purificati
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Rhondda Powling's curator insight, February 20, 2014 2:38 AM

This might be a way to offer experiences if you can't get into a lab.

Rescooped by Mikko Hakala from Nuclear Physics
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Ion beams pave way to new kinds of valves for use in spintronics

Ion beams pave way to new kinds of valves for use in spintronics | Physics | Scoop.it
Researchers at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) have tested a new approach to fabricating spin valves. Using ion beams, the researchers have succeeded in structuring an iron aluminium alloy in such a way as to subdivide the material into individually magnetizable regions at the nanometer ...

Via Theo J. Mertzimekis
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Structuring an iron aluminium alloy into individually magnetizable regions at the nanometer scale.

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The core of corrosion

The core of corrosion | Physics | Scoop.it
(Phys.org) —Anyone who has ever owned a car in a snowy town – or a boat in a salty sea – can tell you just how expensive corrosion can be.
Mikko Hakala's insight:

A view from the liquid side: Cl induces order-disorder transition in water.

 

Sanket Deshmukh, Ganesh Kamath, Shriram Ramanathan, and Subramanian K. R. S. Sankaranarayanan, "Chloride ions induce order-disorder transition at water-oxide interfaces" Phys. Rev. E 88, 062119 (2013) [5 pages] DOI: 10.1103/PhysRevE.88.062119

 

 

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Researchers discover antifreeze protein with water filled core

Researchers discover antifreeze protein with water filled core | Physics | Scoop.it
(Phys.org) —A team of researches with Queen's University, in Canada has found that the antifreeze protein Maxi, defies the normal expectations of a protein by having a core filled with water molecules. In their paper published in the journal Science, describing their research with the protein, the ...
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Interesting finding of water inside a protein.

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Researchers make breakthrough in battery technology

Researchers make breakthrough in battery technology | Physics | Scoop.it
Researchers at the Materials and Surface Science Institute (MSSI), University of Limerick have made a significant breakthrough in the area of rechargeable battery technology. There is an ever-increasing demand for portable electronic devices, and improved technology for battery life and stability is ...
Mikko Hakala's insight:

"High-Performance Germanium Nanowire-Based Lithium-Ion Battery Anodes Extending over 1000 Cycles Through in Situ Formation of a Continuous Porous Network." Tadhg Kennedy, Emma Mullane, Hugh Geaney, Michal Osiak, Colm O'Dwyer, and Kevin M. Ryan. Nano Letters Article ASAP
http://pubs.acs.org/doi/abs/10.1021/nl403979s

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2D Physics Engine: Implementation of rigid bodies, soft bodies and dynamic fluids | Bodman | Game Behaviour

2D Physics Engine: Implementation of rigid bodies, soft bodies and dynamic fluids
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"Abstract

This paper covers the theory behind and implementation of several physical systems including rigid bodies, soft bodies and dynamic fluids. This will cover the physics and mathematics behind the simulation as well as information on architecting and optimising the implementation. The focus is on real-time applications that do not require great accuracy such as games."

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Rescooped by Mikko Hakala from Complexity & Systems
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Exploring Chaos, Fractals and Bifurcation

Exploring Chaos, Fractals and Bifurcation | Physics | Scoop.it
As you may have seen, I am currently really enjoying a course on Dynamic Systems and Chaos run by Santa Fe Institute (see Thoughts on Santa Fe’s new MOOC – Introduction to Dynamical Systems and Cha...

Via Bernard Ryefield
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Fascinating. "...we begin to really grasp the extraordinary complex and chaotic behaviour of what we thought may be an innocuous looking equation. As well as the fractal like patterns, we also notice structure within the chaos..."

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Careers | physics.org

Careers from physics

It’s not just rocket science: physics is the route to so many careers, from predicting climate change to designing computer games. Find out where physics can take you

It’s not just rocket science: physics is the route to so many careers, from predicting climate change to designing computer games. Find out where physics can take you.

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Heavy metal in the early cosmos

Heavy metal in the early cosmos | Physics | Scoop.it
Using the Stampede, Lonestar and Ranger supercomputers, University of Texas researchers simulated the formation of the Universe from the Big Bang through the first few hundred million years of its existence. The researchers found that more realistic models of supernova blasts help explain the range of metalicity found in different galaxies. The results of the simulations will assist in guiding the James Webb Space Telescope, set to launch in 2018.

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Urban Physics

Urban Physics | Physics | Scoop.it
Franz-Josef Ulm and a colleague were taking a break from a tough problem one afternoon when they spotted an aerial photograph of a city and suddenly had an epiphany. Instantly, they made a connection between the patterns of houses and streets and the underlying molecular structure of concrete. That serendipitous observation has since led to [...]
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"...a highly ordered crystal (New York) to a less-ordered glass (Chicago) to an amorphous liquid (Boston)."

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Quasi-particle swap between graphene layers

Quasi-particle swap between graphene layers | Physics | Scoop.it
Equations used to describe parallel worlds in particle physics can help study the behavior of particles in parallel graphene layers. Scientists have used a particle physics theory to describe the behavior of particle-like entities, referred to as excitons, in two layers of graphene, a one-carbon-atom-thick honeycomb crystal.
Mikko Hakala's insight:

High-energy particle physics theoretical approach to solid state phenomana.

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What is on the Other Side of a Black Hole?

What is on the Other Side of a Black Hole? | Physics | Scoop.it
Picture an entire star collapsed down into a gravitational singularity. An object with so much mass, compressed so tightly, that nothing, not even light itself can escape its grasp. It’s no surprise these objects have captured our imagination... and yet, I have a complaint. The name “black hole” seems to have created something of a…
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"So, if you had any plans to travel into a black hole, I urge you to reconsider..."

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9 Apps and Tools for Teaching Physics

9 Apps and Tools for Teaching Physics | Physics | Scoop.it
Physics is one of the most difficult subjects for students to learn and an incredibly difficult one for teachers to find quality apps for use in the classroom.

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Policy: Twenty tips for interpreting scientific claims

Policy: Twenty tips for interpreting scientific claims | Physics | Scoop.it
This list will help non-scientists to interrogate advisers and to grasp the limitations of evidence, say William J.
Mikko Hakala's insight:

The article helps to understand the imperfect nature of science: the quality, biases and limits of evidence.

 

It outlines "20 concepts that should be part of the education of civil servants, politicians, policy advisers and journalists — and anyone else who may have to interact with science or scientists."

 

+ Tips for reading science journalism: Don't believe everything

http://mg.co.za/article/2014-03-13-guide-to-reading-science-journalism-dont-believe-everything/

 

 

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Perovskites: The Emergence of a New Era for Low-Cost, High-Efficiency Solar Cells - YouTube

Over the last 12 months, we have witnessed an unexpected breakthrough and rapid evolution in the field of emerging photovoltaics, with the realization of hig...
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Materials science of perovskite-based solar cells explained.

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Scientific method: Statistical errors

Scientific method: Statistical errors | Physics | Scoop.it

P values, the 'gold standard' of statistical validity, are not as reliable as many scientists assume. One researcher suggested rechristening the methodology “statistical hypothesis inference testing”, presumably for the acronym it would yield. Here we explain why if you think you can trust 'em, you should think again. http://www.nature.com/news/scientific-method-statistical-errors-1.14700"

Mikko Hakala's insight:

"... all [the P-value] can do is summarize the data assuming a specific null hypothesis. It cannot work backwards and make statements about the underlying reality."

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Great Games for Physics

Great Games for Physics | Physics | Scoop.it
With these terrific physics picks, your students will be able to build, toss, and catapult objects big and small, and see where they fall and roll. (@UniverseAndMore Thanks for the heads up, Matt! Here are some other great #physics games too.

Via Dean J. Fusto
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New way to measure electron pair interactions

New way to measure electron pair interactions | Physics | Scoop.it
Shoot a beam of light or particles at certain special materials and you will liberate electrons—pairs of them—a phenomenon known as 'electron pair emission,' which can reveal fundamental properties of the solid and reveal information necessary to design novel materials for future applications.
Mikko Hakala's insight:

Measurement of electron pair emission at a laboratory scale (instead of at synchrotrons), to quantify electron correlation strengths. Achieved by combining two time-of-flight spectrometers in the photoemission chamber.

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How Massive Is A Neutrino? Cosmology Experiment Gives A Clue

How Massive Is A Neutrino? Cosmology Experiment Gives A Clue | Physics | Scoop.it
There have been a lot of attempts over the years to figure out the mass of a neutrino (a type of elementary particle). A new analysis not only comes up with a number, but also combines that with a new understanding of the universe's evolution. The research team investigated the mass further after observing galaxy…
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Evidence for Massive Neutrinos from Cosmic Microwave Background and Lensing Observations

http://prl.aps.org/abstract/PRL/v112/i5/e051303

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'Oldest star' found from iron fingerprint

'Oldest star' found from iron fingerprint | Physics | Scoop.it
Australian astronomers on Sunday said they had found a star 13.6 billion years old, making it the most ancient star ever seen.
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Physicists correct quantum errors

Physicists correct quantum errors | Physics | Scoop.it
Scientists from the FOM Foundation and the Technical University Delft, working together at the Kavli Institute of Nanoscience, have succeeded in detecting and correcting errors during the storage of quantum states in a diamond. This is an important step towards protecting fragile quantum information ...

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The anatomy of an asteroid

The anatomy of an asteroid | Physics | Scoop.it
ESO's New Technology Telescope has been used to find the first evidence that asteroids can have a highly varied internal structure. By making measurements astronomers have found that different parts of the asteroid Itokawa have different densities. As well as revealing secrets about the asteroid's formation, ...

Via THE *OFFICIAL ANDREASCY*, John Purificati
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Room-temperature quantum dots emit single photons - nanotechweb.org

Room-temperature quantum dots emit single photons - nanotechweb.org | Physics | Scoop.it
III-nitride QDs might be ideal for on-chip communications in quantum information processors of the future
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Controlled gallium nitride quantum dots demonstrated to emit single photons at room temperature.

 

As next steps the team aims to measure operating speeds and whether current injection, instead of laser, could be used for operation.

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'Diamane': Diamond film possible without the pressure

'Diamane': Diamond film possible without the pressure | Physics | Scoop.it
(Phys.org) —Perfect sheets of diamond a few atoms thick appear to be possible even without the big squeeze that makes natural gems.
Mikko Hakala's insight:

Ab initio calculations of Gibbs free energy to predict the phase transition. Hydrogenation of the surfaces plays a role.

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Rescooped by Mikko Hakala from Nuclear Physics
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Can A Mega-Magnetic Field Protect Astronauts From Radiation?

Can A Mega-Magnetic Field Protect Astronauts From Radiation? | Physics | Scoop.it

A bunch of people really, really want to go to the Red Planet on the proposed one-way Mars One trip; more than 1,000 applicants are being considered in Round 2 selections.


Via Theo J. Mertzimekis
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