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garde24.bsky.social
I am theoretical physicist. I do research on radiofrequency electromagnetic waves. I like watches and pens. And also magnets. Soy físico teórico. Investigo en ondas electromagnéticas de radiofrecuencia. Me gustan los relojes y las plumas. Y los imanes.
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Manuel Rico, tras la imputación a los cargos de Ayuso: "Es una oportunidad histórica para que se conozca la verdad" www.publico.es/politica/tri...

Ayuso está contra las cuerdas por los protocolos de la vergüenza, por los delitos de su novio, con manifestaciones por la Educación, manifestaciones por la Sanidad... ...pero según ella, el que está de fango hasta las orejas es el Gobierno.

#cosmology Riemann, Christoffel, Levi-Civita, and Ricci can be considered the fathers of tensors. Their work has made it possible to study geometric concepts using the curvature tensor.

#cosmology Tensors provide a powerful theoretical framework for many physical theories: elasticity, electrodynamics, and general relativity.

#cosmology A tensor is an algebraic object that describes a multilinear relation within a vector space. A tensor can be represented by an N-dimensional matrix.

#cosmology The Friedman-Lemaître-Robertson-Walker metric tensor is a good approximation of the structure of the expanding Universe on large scales.

#cosmology The Schwarzschild metric tensor allows us to represent the geometry of space-time around an isolated and static spherical body (which neither vibrates nor rotates around itself).

Me he pegado una siesta que en algún momento ha rozado el coma😂😂😂😂😂

El David a medio salir del bancal

#cosmology With the metric tensor we can define and manage concepts such as time, distance, volume, curvature, future, and past.

#cosmology In General Theory of Relativity, the metric tensor describes the entire geometric and causal structure of spacetime.

M20 pequeña - From Ángel López-Sánchez - https://flic.kr/p/BKWmA

Remote control.

#cosmology The German mathematician Bernhard Riemann (he only lived 40 years, in the XIX century) advanced the study of these geometries by introducing the metric tensor.

Todo el Universo conocido en una sola imagen

Hubble ve el amanecer de una estrella parecida al sol science.nasa.gov/missions/hub...

#cosmology In 1823, Nicolai Lobachevsky and Janos Bolyai developed non-Euclidean geometries.

Querido #DiarioDeCosasBonitas : Hoy he vuelto a ver el Sol, después de bastantes años. Con un telescopio con filtro. No se veía con tanto detalle como en la imagen (ojalá 😅) debido a que el filtro era genérico (lo que hace es "oscurecer" para poder mirar) pero resulta fascinante verlo en vivo.

Viñeta ✊🏻Sigamos ✏️@ferranmartin.bsky.social

José Mujica: La honestidad es vivir de acuerdo con lo que se piensa y se siente, sin dobleces ni máscaras.

-He convocado un cónclave,Emilio -Pero Alberto,el cónclave se convoca cuando se muere el jefe -no se,fue idea de Ayuso

#cosmology Our intuition tells us that the Universe must be in the shape of a sphere, perhaps in four dimensions. But Nature has chosen a quite different Universe: a flat Universe. That is what is deduced from the data that we handle at the moment.

#cosmology Our intuition tells us that the Universe must be in the shape of a sphere, perhaps in four dimensions.

Parece una nebulosa, pero es una estrella en sus "primeros milenios de vida" en la nube oscura L1527. Así de espectacular se ve la formación de una estrella cuando aún no ocurre la fusión nuclear en su interior de manera estable ✨ 📸: NASA, ESA, CSA y STScI, J. DePasquale, A. Pagan y A. Koekemoer

#cosmology Since 1915, we've known that space is warped by the presence of matter and energy, and now we can witness those effects and measure them.

CHINA. 10.000 drones. Espetacular. 👍💪💪

Eso es así. 😜

.

Yo, hace unos cuantos años. Ahora solo queda el perro.

POR QUÉ SERÁ ?? 🤔😅😅😅😅😅😅😅😅😅😅😅😅

🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣

#cosmology According to supersymmetric theories, Weakly Interacting Massive Particles (WIMP) could be generated in the experiments designed at the Large Hadron Collider (LHC) at CERN in Switzerland.

#cosmology The collision of two Weakly Interacting Massive Particles (WIMP) would generate electromagnetic waves that we could detect and, indirectly, we would be obtaining evidence of these WIMP.

Da igual cuándo lo veas.

#cosmology Other possible candidates for Cold Dark Matter (CDM) are nominated by supersymmetric theories. They are called Weakly Interacting Massive Particles (WIMP). That is the generic name given to any particle that is part of the CDM.

¿De los 133 cardenales cuántos tenían en mente el nombre de León XIV por si les tocaba usarlo?

#cosmology It is expected that the interaction of the axions with the Standard Model particles is very weak, they may be the Cold Dark Matter (CDM), but even if it is small it could allow to detect it and have some evidence of the CDM.

#cosmology This theory (axion), which is an extension of the Standard Model, is motivated by the fact that the neutron should have a non-zero dipole moment, but it has not yet been experimentally measured.

#cosmology There is a theory that says that Cold Dark Matter (CDM) is formed by a kind of particle called an "axion" that arises from the oscillation of a scalar field, known as the axion field.

#cosmology As time flows, the Universe expands, cools, and increases the distance between the particles.