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annarita ruberto
Worked at Ministry of National Education
Attended University of Salento
Lives in Ravenna (Italy)
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annarita ruberto

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I'm announcing the news with a little delay given that John F. Nash Jr. died May 23, 2015...

John Forbes Nash, Jr. (June 13, 1928 – May 23, 2015) was an American mathematician whose works in game theory, differential geometry, and partial differential equations have provided insight into the factors that govern chance and events inside complex systems in daily life.

His theories are used in economics, computing, evolutionary biology, artificial intelligence, accounting, politics and military theory. Serving as a Senior Research Mathematician at Princeton University during the latter part of his life, he shared the 1994 Nobel Memorial Prize in Economic Sciences with game theorists Reinhard Selten and John Harsanyi. In 2015, he was awarded the Abel Prize (along with Louis Nirenberg) for his work on nonlinear partial differential equations.

Source Wikipedia>>,_Jr.

#John_Nash   #great_mathematicians   #ABeautifulMind  
The mathematician, 86, and his wife, 82, were killed in a taxicab crash on the New Jersey Turnpike.
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The secret of genius...

"The secret of genius is to carry the spirit of the child into old age, which means never losing your enthusiasm."

A quote from Aldous Huxley

Do you agree?

About Aldous Huxley >>

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+Gianfranco Bo L'aforisma tenta di condensare e non di spiegare. Comunque sarebbe un ottimo esercizio di stile rispondere ad un aforisma con un altro aforisma.☺
Comprendo anche che un aforisma possa suscitare in alcuni il senso dell'umorismo. Dipende dagli aforismi, per quanto mi riguarda. Ad esempio, non suscitano il mio senso dell'umorismo quelli di Schopenhauer o di Nietzsche, e nemmeno quello che ho riportato nel post.

Non avevo colto l'ironia nel tuo tentativo di allargare il concetto di neotenia. Se ci dovesse essere qualche base scientifica a sostegno della tua ipotesi, e ne dovessi venire a conoscenza, non mancherò sicuramente di informarti.

Pace & bene!☺☺☺
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Twisting cubes

Another wonder from bees&bombs.

#cube #geometry #animated_gifs
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Cool beans
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Occult shapes

► Credit: bees&bombs

#gif #processing #design #black_and_white #art
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+James Lohmiller Hi James! You're very welcome. I'm glad you enjoyed the spaghetti bridges.☺
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At the Heart of Orion 

Image Credit: László Francsics

Explanation: Near the center of this sharp cosmic portrait, at the heart of the Orion Nebula, are four hot, massive stars known as the Trapezium. Tightly gathered within a region about 1.5 light-years in radius, they dominate the core of the dense Orion Nebula Star Cluster. Ultraviolet ionizing radiation from the Trapezium stars, mostly from the brightest star Theta-1 Orionis C powers the complex star forming region's entire visible glow. About three million years old, the Orion Nebula Cluster was even more compact in its younger years and a dynamical study indicates that runaway stellar collisions at an earlier age may have formed a black hole with more than 100 times the mass of the Sun. The presence of a black hole within the cluster could explain the observed high velocities of the Trapezium stars. The Orion Nebula's distance of some 1,500 light-years would make it the closest known black hole to planet Earth.

Image and text source>>

#Orion_Nebula #space #astronomy #Trapezium_stars
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+Connie Sinclair Thanks for the tip!
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Gregorio Ricci- Curbastro, Father of Tensor Calculus

Perhaps many people have never heard the name "Gregorio Ricci- Curbastro", even if he was a high-level mathematician.

The following text (translated by me in English) is an excerpt from a long article (in Italian), which I dedicated to such an extraordinary person:

[...]Ricci- Curbastro bequeathed to science the tensor calculus, by developing the theory of curved spaces of any dimension. Einstein was the first to take advantage of tensor calculus power in his General Theory of Relativity, but the concept of curvature (introduced by Carl Friedrich Gauss and developed by Riemann and others) was subsequently an extraordinary instrument, which made possible the solution of one among the greatest mathematical problems: the classification of three-dimensional manifolds (G. Perelman, 2003).

In fact, the "Ricci flow" allowed to solve the Poincaré conjecture, proposed a century ago by the great French mathematician of whom name it bears.
This conjecture was considered, throughout the mid-twentieth century, the most important unsolved problem in topology.
Grigory Yakovlevich Perel'man used in a brilliant way a strategy consisting in changing Richard Hamilton's geometrization program by means of Ricci flow. Such a geometrization approach is particularly innovative compared to previous and more aimed programs of topological sort.

In conclusion, we specify that Ricci -Curbastro work has also repercussions in image processing and in robotics, and many real-life applications in physics and engineering.

We can read on the plaque, placed on Ricci's home:
"He gave science the absolute differential calculus, an essential tool for the theory of general relativity, new vision of the universe." [...]

In my article, I pointed out of course that Ricci-Curbastro former student Tullio Levi-Civita (another ingenious mathematician) had a relevant part  in developing tensor calculus.

Relevant links:

Ricci calculus >>
Tensor calculus>>
General Relativity and The Absolute Differential Calculus>> 
Applications of the Absolute Differential Calculus by A.J. McConnell >>
Levi-Civita: Absolute Differential Calculus>>
Gregorio Ricci-Curbastro on Wikipedia>>
Tullio Levi-Civita on Wikipedia>>

#mathematics   #history_of_mathematics   #great_mathematicians   #scienceeveryday   #sciencesunday   #science  
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What Your Body Looks Like Top To Bottom

Amazing! There is no doubt, in my opinion of course...

Gif source>>

I thank +Chad Haney for his clarifying comment:

It's a cadaver that was physically sliced and scanned (like a desktop scanner).
Visible human project
Sister post to the Visible Human project

I thank too +Rajini Rao 

#body    #anatomy #biology   #science #animated_gif
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Cool, but gruesome.
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Have her in circles
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annarita ruberto

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Geeky PINs 

A comic from

We specify that the only Munchausen numbers are 1 and 3435 in the decimal system, using the convention  0^n = 0 where n>0.

A Munchausen number is better- known as a perfect digit-to-digit invariant or a Canouchi number.
► See here>>

#comics #mathematics #geek
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Well I think we all know that if the REAL answer to the "Ultimate Question of Life, the Universe and Everything" had been found, everyone would be enlightened and thus live full, rich and happy lives .........and there would be no need

for psychiatrists.........So the psychiatrists destroyed the ultimate computer that was "Earth" lol
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Using Planet Colors to Search for Alien Earths

This information dates back to 2010 but is still current as well as very interesting. 

NASA scientists grouped the planets of our solar system according to the amounts of red, blue and green light they reflect. When plotted, the planets fall into distinct regions that indicate surface or atmospheric properties. Earth's color and position on the plot is unique. The method works even when the planet is a point source, so astronomers can use it to find earthlike worlds.

In this NASA/GSFC video, UCLA graduate student  Carolyn Crow (as part of Deep Impact Science Team) explains how planetary colors may guide us to alien Earths.>>

Image explanation: "NASA researchers analyzed the light reflected by the planets and plotted the results on a "color-color" diagram. By plotting the ratios of red to green light as well as blue to green, the planets cluster into "color families." On the diagram, Earth is easily distinguishable from the other major planets". Credit: NASA/GSFC

Read the NASA news for deepening the information above.>>

#alien_earths #NASA #space_exploration #astronomy #astrophysics #science
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+Louis Freese​​​ My humour isn't always apparent. Solace, solitude, moon=companion, you are alone beyond Neptune.... I'm twisted and often speak in riddles. I know that you think you understand what you thought I said but what you fail to realize is that what I meant to say is not what you heard. ;) lol (I was reacting to your awwww.)
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Electromagnetic Spectrum 

Electromagnetic radiation—from radio waves to visible light to x-rays—travels through space in the form of waves, rising and falling in a similar way to waves rippling across the ocean. The length of these waves helps define their properties and potential uses. Many of these marine creatures and objects, including the 30-meter blue whale or the 2-centimeter pygmy seahorse, can be easily seen with the naked eye. To see objects in the middle of the spectrum, scientists use microscopes and similar devices. At the right end of the spectrum, however, much more sophisticated instruments are required.
Brookhaven Lab specializes in exploring materials on the nanoscale, spanning just billionths of a meter. To reveal structural details the size of DNA, we use powerful x-rays produced at the National Synchrotron Light Source II, precise electron microscopes at the Center for Functional Nanomaterials, and a host of other sensitive instruments and techniques. Investigating materials at that scale—from lithium-ion batteries to cell-building proteins—allows fundamental discoveries that can revolutionize our understanding of biology, energy technology, and even the cosmos. In fact, Brookhaven Lab scientists use the Relativistic Heavy Ion Collider to explore subatomic phenomena spanning just millionths of a billionth of a meter—too small to even fit onto this graphic.

Text and infographic source, where we can see too a larger version of this graphic>>

About Brookhaven National Laboratory>>

#Electromagnetic_Spectrum #Physics #Science #marine_life #infographic #light #gamma_ray #microscope
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+Stefano Muccinelli You're welcome, Stefano.
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Rotation wave

► Animation credit: bigblueboo

#gif #processing #black_and_white #orthographic #cubes #generative_design
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Spettacolare! Vedo una zolla di materia in tensione perchè sottoposta a forze di torsione, tutto ad un tratto cede. Ricorda molto da vicino i terremoti.
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Rotating a circle around one of half its radius to create a heart-shaped cardioid curve 

Matthew Henderson comes back with another interesting animation.

Here is the code, if you are interested in that one>>

Further information about:


Matthew Henderson>>

► Gif source>>

#mathematics #animation #cardiod
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I teach mathematics and science and work at educational research.
Science communication and e-learning. Scientific blogging
  • Ministry of National Education
    Tenured teacher at secondary school
  • "Scuola & Didattica" - Educational fortnightly magazine in Italian
    Freelance journalist of scientific and educational articles
  • Collaboration with various educational websites
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Ravenna (Italy)
Lecce - Firenze
We can achieve what strongly we want!
I teach mathematics and science and I write for "Scuola e Didattica"- Educational fortnightly magazine in Italian (Editrice La Scuola).

I'm also interested in web 2.0, social network and much more. I love reading, writing, painting, photography, good music, and more.

My posts are prevalently about Science and Mathematics for a general audience, but also about Art, beautiful images/photo and interesting  gifs. I share often scientific news that can be useful to many people.

I would like to look at the profiles of everyone who circles me, but there are too many. ;)
Anyway, I will definitely look at your profile if you engage with my posts.

Furthermore, I am interested in following people who post quality original content, regardless of the number of their followers. 

Instead I am not interested in following people if they never engage with my own content.

If you consider interesting my posts, you can circle me:). I'd like to read your posts and to interact with you here on Googleplus
Bragging rights
I experimented at school a research scholarship in Science, producing approximately over 200 pages of Materials for Science, published by IRRE- ER (Institute of Educational Research Emilia-Romagna, Italy). I was also part, along with 50 teachers selected nationwide, of The SENIS Project, a pilot project from Ministry of National Education for improving the scientific formation of teachers at secondary school. This Project has collected a lot of educational resources, published in a book by Ministry of National Education.
  • University of Salento
    Master's Degree in Physics
  • Classical Lyceum
  • University of Florence
    Advanced course in methods of communication and networked learning
  • University of Tuscia
    1. Advanced course on assessment/evaluation and managing portfolio. 2. Master in elearning and Learning Object
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