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A mixture of science

Posted Mar14-12 at 08:33 AM by DennisN
Updated Mar14-12 at 09:48 AM by DennisN (FFT update)

Hi! I'm a fairly new member on Physics Forums, but I have been reading here for quite some time. Since I am very interested in physics & science I have a tendency to collect stuff, and I thought I might share some things I've picked up. It will be a collection of different things; things I find either interesting, important or strange (or any combination of those ). Note: I've checked the PF rules and if any admin should get unhappy with this post, please let me know ASAP.

The search for the Higgs Boson
ATLAS and CMS experiments submit Higgs search papers (Feb 7, 2012)
"Tantalising hints have been seen by both experiments in the region 124-126 GeV; however, these are not strong enough to claim a discovery." Tommaso Dorigo discussed this in an article on Science 2.0.

The neutrino anomaly
CERN reports two possible effects that may have influenced neutrino timing (Feb 23, 2012)
When I heard of the news about the supposed FTL neutrinos, I suspected a measurement error for a number of reasons. But any error is still not yet confirmed AFAIK.

A new uncertainty relation? (Jan 9, 2012)
Interesting, but I haven't read the full paper.
Paper: Experimental demonstration of a universally [...]
Article 1, Article 2

Time Crystals (Wilczek/Shapere) (12 Feb, 2012)
Let me sum this up in one word: strange.
Paper 1: Quantum Time Crystals
Paper 2: Classical Time Crystals
Article 1, Article 2

A faster Fourier transform (18 Jan, 2012)
This could become handy.
Paper: Nearly Optimal Sparse Fourier Transform
Article 1, Article 2

Photons are obedient, c=c, and we are all relieved (Jun 24 2011)
Nevertheless important research, IMO.
Paper: Optical Precursor of a Single Photon
Article 1, Article 2

"The Future of Fundamental Physics" (Nima Arkani-Hamed, 2010)
If you are familiar with relativity and quantum mechanics, you should be able to appreciate these lectures. Part 3, 4, 5 go into uncharted territory and may be intellectually challenging. E.g. Part 3 is partly about the Holographic principle.

Renowned theoretical physicist Nima Arkani-Hamed delivered the first in his series of five Messenger lectures on Oct. 4. Formerly a professor at Harvard, Arkani-Hamed currently sits on the faculty at the prestigious Institute for Advanced Study in Princeton, New Jersey, where Einstein served from 1933 until his death in 1955.

01 - Setting the stage: Space-time and Quantum Mechanics
02 - Our Standard Models of particle physics and cosmology
03 - Space-time is doomed - What replaces it?
04 - Why is there a macroscopic universe?
05 - A new golden age of experiments - What might we know by 2020?

A Universe From Nothing (Lawrence Krauss, AAI 2009)
This is actually one of my favorite talks at a layman level; the scope is quite impressive.


And some eye candy : Three nice space clips

Blast into Space, Spectacular Fall to Earth
One of my favorite space clips.

What does it feel like to fly over planet Earth?
An amazing time-lapse taken from the International Space Station as it orbits our planet.

ISS: Aurora Australis
Breathtaking Aurora as seen from the International Space Station.

and finally:
Interview with Isaac Asimov (1975)
(Mostly science fiction, but I found it nevertheless interesting.)
Isaac Asimov (1920-1992) was an author and professor of biochemistry at Boston University, best known for his science fiction novels and for his popular science books.

I will probably post some more stuff in my blog later. Cheers!
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  1. Old Comment
    Haha, I forgot about the new faster FFT, so I've added that. Ironic, my field is actually computer science...
    Posted Mar14-12 at 09:54 AM by DennisN DennisN is offline