Physics

Apologizing for a hiatus due to vacations, I am posting today a tentative logo of the Marie-Curie network I am coordinating, AMVA4NewPhysics. A brief explanation of the symbols at the basis of the logo is given below, in order for you to propose changes or even help by offering different ideas (and if you're a graphic designer, then maybe you consider producing a better one for us ?).

The most popular form of radiation detector used is probably the Geiger-Mueller (GM) detector.  A GM detector is typically the device seen being used on TV shows and movies when measuring radiation.  The GM detector is the device which is making clicking noises which clicks faster and faster when it is exposed to increasingly greater amount of radiation.

Quantum computing is well into its second decade of hype with little progress being made. Computer chip companies have continued to optimize available physics and have left the quantum kind to the academic sandbox. It's not stable long enough to make calculations.

Perhaps what is needed is an intermediary to transmit information, say researchers at the Okinawa Institute of Science and Technology Graduate University (OIST).

A simple and provocative title – The Missing Memristor has Not been Found! This harsh admission of reality without sugar coating is the very title, and not of some opinion piece, but of a scientific paper published by the very same Nature Publishing Group that is criticized right away in that very paper:

 

I was saddened today to hear of the death of David Cline. I do not have much to say here - I am not good with obituaries - but I do remember meeting him at a conference in Albuquerque in 2008, where we chatted on several topics, among them the history of the CDF experiment, a topic on which I had just started to write a book. 

Perhaps the best I can do here as a way to remember Cline, whose contributions to particle physics can and will certainly be better described by many others, is to report a quote from a chapter of the book, which describes a funny episode on the very early days of CDF. I think he did have a sense of humor, so he might not dislike it if I do.

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The Marie-Curie network I am coordinating, AMVA4NewPhysics, is going to start very soon, and with its start several things are going to happen. One you should not be concerned with is the arrival of the first tranche of the 2.4Meuros that the European Research Council has granted us. Something more interesting to you, if you have a degree in Physics or Statistics, is the fact that the network will soon start hiring ten skilled post-lauream researchers across Europe, with the aim of providing them with an exceptional plan of advanced training in particle physics, data analysis, statistics, machine learning, and more.

This poem is too good to just quote the final stanza.

The Road Not Taken
By Robert Frost

Two roads diverged in a yellow wood,
And sorry I could not travel both
And be one traveler, long I stood
And looked down one as far as I could
To where it bent in the undergrowth;

Then took the other, as just as fair,
And having perhaps the better claim,
Because it was grassy and wanted wear;
Though as for that the passing there
Had worn them really about the same,

And both that morning equally lay
In leaves no step had trodden black.
Oh, I kept the first for another day!
Yet knowing how way leads on to way,
I doubted if I should ever come back.

In 1915 Albert Einstein formulated the theory of general relativity which fundamentally changed our understanding of gravity. He explained gravity as the manifestation of the curvature of space and time. Einstein's theory predicts that the flow of time is altered by mass.

This effect, known as "gravitational time dilation", causes time to be slowed down near a massive object. It affects everything and everybody; in fact, people working on the ground floor will age slower than their colleagues a floor above, by about 10 nanoseconds in one year.


Gas rules

Gas rules

Jun 21 2015 | 1 comment(s)

The picture of a central positively charged nucleus of an atom surrounded by negatively charged swarming electrons explains so much detail in the nature of our world.  This is known as the atomic model.  The behavior of gas, liquids and solids are almost completely explained with just that model (after including quantum effects).  Basic things like weather, water behavior, rock mechanics and fire to name but a small few. 

In 1992 I started working at my undergraduate thesis, the search for all-hadronic top quark pairs in CDF data. The CDF experiment was just starting to collect proton-antiproton collision data with the brand-new silicon vertex detector in what was called Run 1a, which ended in 1993 and produced the data on which the first evidence claim of top quarks was based. But I was still working on the Run 0 data: 4 inverse picobarns of collisions -the very first collisions at the unprecedented energy of 1.8 TeV. And I was not alone: many analyses of those data were still in full swing.