Epistemologia
25 views | +0 today
Follow
Your new post is loading...
Your new post is loading...
Scooped by Patricio Díaz
Scoop.it!

Scientific research has changed the world. Now it needs to change itself - The Economist

Scientific research has changed the world. Now it needs to change itself - The Economist | Epistemologia | Scoop.it
Scientific research has changed the world. Now it needs to change itself
The Economist
A SIMPLE idea underpins science: “trust, but verify”. Results should always be subject to challenge from experiment.
Patricio Díaz's insight:

Como la ciencia puede equivocar su vocación.

more...
No comment yet.
Scooped by Patricio Díaz
Scoop.it!

Is time real? - Io9

Is time real? - Io9 | Epistemologia | Scoop.it
Time and its "real"-ness are, in fact, major considerations in fields like physics and philosophy. But then, what does that ... Theoretical physicist Sean Carroll gets down to brass tacks on time, reality, and how we experience both.
Patricio Díaz's insight:

Análisis sobre el caracter del tiempo.

more...
No comment yet.
Scooped by Patricio Díaz
Scoop.it!

Pioneer Science: Discovering Deep Space | BBC Documentary

Around the world, a new generation of astronomers are hunting for the most mysterious objects in the universe. Young stars, black holes, even ...youtube.com
Patricio Díaz's insight:

Video sobre el estudio del Universo profundo

more...
No comment yet.
Rescooped by Patricio Díaz from Amazing Science
Scoop.it!

Time's quantum arrow has a preferred direction: BaBar experiment confirms time asymmetry

Time's quantum arrow has a preferred direction: BaBar experiment confirms time asymmetry | Epistemologia | Scoop.it
Time marches relentlessly forward for you and me; watch a movie in reverse, and you'll quickly see something is amiss. But from the point of view of a single, isolated particle, the passage of time looks the same in either direction. For instance, a movie of two particles scattering off of each other would look just as sensible in reverse – a concept known as time reversal symmetry.

 

Now the BaBar experiment at the Department of Energy's (DOE) SLAC National Accelerator Laboratory has made the first direct observation of a long-theorized exception to this rule. Digging through nearly 10 years of data from billions of particle collisions, researchers found that certain particle types change into one another much more often in one way than they do in the other, a violation of time reversal symmetry and confirmation that some subatomic processes have a preferred direction of time. The results are impressively robust, with a 1 in 10 tredecillion (10E43) or 14-sigma level of certainty – far more than needed to declare a discovery.

 

"It was exciting to design an experimental analysis that enabled us to observe, directly and unambiguously, the asymmetrical nature of time," said BaBar collaborator Fernando Martínez-Vidal, associate professor at the University of Valencia and member of the Instituto de Fisica Corpuscular (IFIC), who led the investigation. "This is a sophisticated analysis, the kind of experimental work that can only be done when an experiment is mature."

 

BaBar, which collected data at SLAC from 1999 to 2008, was designed to tease out subtle differences in the behavior of matter and antimatter that might help account for the preponderance of matter in the universe. It produced almost 500 million pairs of particles called B mesons and their antimatter counterparts B-bar mesons for study. BaBar scientists found that B mesons and B-bar mesons do, indeed, behave differently in ways that violate so-called CP symmetry, which incorporates the symmetries of charge (positive versus negative) and parity (which can be thought of as left-handedness versus right-handedness). This discovery of CP violation contributed to the 2008 Nobel Prize in Physics.


Via Dr. Stefan Gruenwald
Patricio Díaz's insight:

La Teoría Cuántica confirma la asimetría del tiempo

more...
No comment yet.
Scooped by Patricio Díaz
Scoop.it!

Stopping Alzheimer before the first symptoms might ... - Ciência Hoje

Stopping Alzheimer before the first symptoms might ... - Ciência Hoje | Epistemologia | Scoop.it
New research just out in the journal Science Translational Medicine opens the door for the development of treatments capable of stopping Alzheimer's disease (AD) before its first symptoms, that is to say before any crucial ...
Patricio Díaz's insight:

Avances en tratamiento temprano de de una de las principales enfermedades de la mente.

more...
No comment yet.
Scooped by Patricio Díaz
Scoop.it!

Is science wrong? Human after all - The Economist (blog)

Is science wrong? Human after all - The Economist (blog) | Epistemologia | Scoop.it
Is science wrong? Human after all
The Economist (blog)
In 1945 eighteen kilotons of science detonated at 1500' over the women and children of Hiroshima. Last month, several bottles of science poisoned hundreds of women and children in Syria.
Patricio Díaz's insight:

Sobre la falibilidad de la ciencia.

more...
No comment yet.
Scooped by Patricio Díaz
Scoop.it!

Language Log » Bad Science

Language Log » Bad Science | Epistemologia | Scoop.it
The problems in science, though serious, are nothing new. And the alternative approaches to understanding and changing the world, including journalism, are much worse. In fact, some of the worst problems in science are ...
Patricio Díaz's insight:

Problemas en la investigación científica

more...
No comment yet.
Scooped by Patricio Díaz
Scoop.it!

The True Science of Parallel Universes

Oh, Hey! MinuteEarth! http://youtube.com/minuteearth .........and you can also subscribe to MinutePhysics! http://dft.ba/-minutephysics_sub ...youtube.com
Patricio Díaz's insight:

Video sobre los Universos Paralelos

more...
No comment yet.
Scooped by Patricio Díaz
Scoop.it!

Terra Incognita – a interface entre ciencia e public | Jon Turney

Terra Incognita – a interface entre ciencia e public | Jon Turney | Epistemologia | Scoop.it
Terra Incognita – a interface entre ciencia e public. 1755336. This was co-edited with my old friends Luisa Massarani and Ildeo Castro Moreira, and came out from Casa de Cienca in Rio in 2005. It is simply a reader in science ...
Patricio Díaz's insight:

Sitio destinado a acercar la ciencia a la gente.

more...
No comment yet.
Rescooped by Patricio Díaz from Redes sociales y aprendizaje digital.
Scoop.it!

Karsten Krüger El concepto de Sociedad del Conocimiento

Scribd is the world's largest social reading and publishing site.

Via Isa
Patricio Díaz's insight:

Concepto de Sociedad del conocimiento.

more...
No comment yet.