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Why You'll Never Escape From A Black Hole : Starts With A Bang

3 saves http://scienceblogs.com/startswithabang/2012/05/why_youll_never_escape_from...

Why You'll Never Escape From A Black Hole : Starts With A Bang

3 saves http://scienceblogs.com/startswithabang/2012/05/why_youll_never_escape_from...

This Month in Physics History

1 save http://www.aps.org/publications/apsnews/200305/history.cfm#.T6g5pKvrwj4.del...

Electric power is an aspect of modern life that most of us take for granted. And while the general public associates Thomas Edison with its invention and the development of transmission processes, the methods used today are largely due to the efforts of Nikola Tesla.

This Month in Physics History

1 save http://www.aps.org/publications/apsnews/200305/history.cfm#.T6g5sV7zxjA.dii...

Electric power is an aspect of modern life that most of us take for granted. And while the general public associates Thomas Edison with its invention and the development of transmission processes, the methods used today are largely due to the efforts of Nikola Tesla.

The true colours of white light: hands-on optical spectrometry

1 save http://arxiv.org/abs/1204.6072

The true colours of white light: hands-on optical spectrometry
Robert Fischer
(Submitted on 26 Apr 2012)
Although the observation of optical spectra is common practice in physics classes, students are usually limited to a passive, qualitative observation of nice colours. This article discusses a diffraction-based spectrometer that allows students to take quantitative measurements of spectral bands. Students can build it within minutes from generic low-cost materials. The spectrometer's simple, didactic design allows students to fully comprehend the underlying physical concepts and to engage in a discussion on measurement errors and uncertainties.

The Soundry: The Physics of Sound

1 save http://eufisica.posterous.com/the-soundry-the-physics-of-sound

Physics:

The science of matter and energy and of interactions between the two; the physical processes and phenomena of a particular system.

Table of Contents

What is Sound?
Pro ...

And God said: E = mv^2 - Ze^2/r ...and there *WAS

1 save http://www.diigo.com/item/note/7ef7/n5b7

And God said: E = mv^2 - Ze^2/r ...and there *WAS* light!

[1202.6007] Planet Hunters: New Kepler planet candidates from analysis of quarte...

3 saves http://arxiv.org/abs/1202.6007

[1204.4741] The Stability of Massive Main Sequence Stars as a Function of Metall...

2 saves http://arxiv.org/abs/1204.4741

Earth

1 save http://www.youtube.com/watch?v=2NAEnlgCv9o

Earth's Slowing Rotation: http://t.co/HDWaLuMr via @youtube

[1204.0162] The Proof of Innocence

4 saves http://arxiv.org/abs/1204.0162

Graphene capsule reveals nanocrystal growth in action - physicsworld.com

1 save http://physicsworld.com/cws/article/news/2012/apr/10/graphene-capsule-revea...

Physics Simulations

6 saves https://sites.google.com/site/geogebrasimulations

[1204.0596] On the Formation Age of the First Planetary System

2 saves http://arxiv.org/abs/1204.0596

The first planetary systems could be formed within ~60 million years after the Big Bang.

Week Review

1 save http://eufisica.posterous.com/week-review-50440

Posts this week:

Look at the Space from ISSMar 18, 2012
Dissecting the pinguinMar 20, 2012
Einstein's ArchiveMa
Dissecting the pinguinMar 20, 2012
r 20, 2012
Light pulses in a quantum walkMar ...

Dissecting the Penguin

1 save http://www.quantumdiaries.org/2012/03/19/dissecting-the-penguin/

One of the amusing tales in particle physics is the story of how the “penguin diagram” got its name. We won’t go into that here, instead, we’ll make use of some of the tools we’ve developed with Feynman diagrams to understand the physics behind these ‘penguin’ diagrams. In doing so, we’ll have a nice playground to really make use of what we’ve learned so far about Feynman rules. (Feel free to review the series if you need a refresher!)

Projectile Motion with Angry Birds

1 save http://www.compadre.org/OSP/items/detail.cfm?ID=11562

The Projectile Motion with Angry Birds lab uses the Tracker video analysis tool to measure and analyze the motion an angry bird projected from a slingshot to hit a pig.<br /><br />The zip file contains the lab handout, a video, and the Tracker…