Discover and read the best of Twitter Threads about #einstein

Most recents (12)

In this month's A&G, read all about the growth of the field of Cosmology, from its speculative origins to the respected discipline it is today, by Malcolm Longair doi.org/10.1093/astrog… #cosmology
(Image Credit: NASA/JPL-Caltech/L Jenkins [GSFC]) an image of space, with 3 bright objects
@RoyalAstroSoc @AstronGeo @OxfordJournals @astro_librarian @KICC_official Early research in #MNRAS was largely based on observational astronomy, but a great number of important advances in cosmology have since been published with us as the field has grown. We look back on some of these groundbreaking discoveries... Hubble Deep Field. A detailed image of space.
The work of Albert Einstein was a clear foundation of things to come, outlined by Willem de Sitter in #MNRAS through a compilation of papers, starting with ‘On Einstein's Theory of Gravitation and its Astronomical Consequences’👨‍🏫doi.org/10.1093/mnras/… #Einstein A photograph of Albert Einstein, writing on a blackboard.
Read 12 tweets
[1] OK - Dont laugh -

I am now very interested in looking at Harry Sachs
[2] Harry Sachs :

* Was born in 1857
* Lived as adult in New York City
* 40 years with Goldman Sachs
* Was "born" in Baltimore (may mean "grew up"... TBD)
* And one more thing ...

See geni.com/people/Harry-S…
[3] Harry Sachs was the older brother of Samuel Sachs

This is THE "Sachs" of Goldman Sachs

"Sachs, along with his longtime friend Philip Lehman of Lehman Brothers, pioneered the issuing of stock "

en.wikipedia.org/wiki/Samuel_Sa…
Read 10 tweets
#Neuroscientists worldwide are increasingly studying #myelin and its amazing impact on rapid #learning, mastery, and neuroplasticity. So keep your circuits strong with deep, focused practice, but remember: #myelination requires quality versus quantity.
What Is #Myelination?
Myelination is the process of “insulating” a new neural pathway to strengthen it and to forge new default #behaviors. Heavily myelinated neural pathways are up to 300 times faster.
They’ve been optimized for speed and #efficiency. Increasing #myelination via intentional #practice helps us become more emotionally agile.
Read 24 tweets
Did you know that @HSNatSci publishes essay reviews? These reviews are ~3-4K words in length and creatively engage in #histTSM related books that are thematically related. We've published everything from retrospective looks at classics to emerging new directions 1/
They started in this format with the relaunch of @HSNatSci in 2008 under the guidance of then Book Review co-editors @GordinMichael and Angela Creager. The first two published were Matthew Stanley's "Einstein: Essence or Explanation?" V.38(2008): 153-61 hsns.ucpress.edu/content/38/1/1… 2/
Stanley incl. 2 biographies of Einstein by @WalterIsaacson & Jürgen Neffe, & an edited collection by David Rowe & Robert Schulmann, to think about the "reliance on personality as an explanatory category," esp. with #Einstein #histSTM hsns.ucpress.edu/content/38/1/1… 3/
Read 8 tweets
(1/18)¿QUÉ ES EL ESPACIO-TIEMPO Y POR QUÉ LLAMAMOS AL TIEMPO LA CUARTA DIMENSIÓN? Aquí te lo explicamos de la manera más sencilla
#Astronomía #ciencia #felizmiercoles #14agosto #Einstein @JorgePlaGarcia @Planeta_Errante
(2/18) Según la mecánica clásica de Newton (dicho de forma sencilla) la gravedad es una fuerza de atracción entre dos cuerpos y esta atracción decrece con la distancia.
(3/18) Según Einstein la gravedad no se trata de fuerza sino de geometría: La presencia de un cuerpo en el espacio produce una deformación del espacio-tiempo que determina la atracción entre los cuerpos.
Read 18 tweets
1/ AT ONE TIME, EVERY PIECE OF #PAPER MONEY WAS BACKED BY #GOLD. REMEMBER… FOR EVERY 20 DOLLAR BILL… THERE WAS $20 WORTH OF GOLD IN A #GOVERNMENT VAULT. NOT ANYMORE.

TODAY, GOVERNMENTS CREATE #CURRENCY BY FIRST CREATING BONDS OR TREASURY-BILLS.
2/
THESE #BONDS ARE SOLD IN THE #MARKET… GENERATING FUNDS FOR THE GOVERNMENT THAT ISSUED THEM.

LARGE #BANKS BUY U.S. BONDS TO FLIP THEM… SELLING THEM TO THE #FEDERAL RESERVE AT A PROFIT -- THIS IS THE MAGIC MONEY MACHINE. #FED
3/ YOU SEE… THE FED IS AMERICA’S #CENTRALBANK. BUT IT DOESN’T HAVE ANY MONEY, NO #CASH ON ITS BALANCE SHEETS.

WHEN A BANK BUYS A BOND AND TAKES IT TO THE FEDERAL RESERVE, THE FED SIMPLY SAYS “THANK YOU MR. BANKER, HERE’S THE PRINCIPAL AND SOME #PROFIT.”
Read 12 tweets
(1/16) ¿QUÉ ES LA ENERGÍA OSCURA? NO CONFUNDIR CON MATERIA OSCURA. Se cree que esta energía llena todo el espacio y constituye casi el 70% del universo. ¿Pero qué nos hizo pensar que esta ahí? Aquí te lo contamos.
#Astronomía #Ciencia #FelizLunesATodos #29Julio #Cosmos #Einstein
(2/16) Hablamos sobre materia oscura en este hilo.
(3/16) A principios del siglo XX la mayoría de los científicos compartían la idea de que el universo era estático, es decir, ni se expandía ni se contraía. Entre los científicos que creían en un universo que no cambiaba de tamaño estaba Albert Einstein.
Read 16 tweets
Hoy en "Terroristas orgullosos de sus padres terroristas":
👉Josefina "La Tana" González.
El hilo 👉 #YaDeBebé.
Josefina "La Tana" González es Hija de Rut González, y Dardo José Tosetto y nieta de Amorosa Brunet de González.
La Tana es diputada, y una activa militante de La Cámpora.
Read 50 tweets
No me han matado físicamente, no. Es aún peor: me han robado el alma.

Tras haber respondido tantas preguntas, ahora me asalta la más importante: ¿por qué yo?

Me llamo…
ALAN M. #TURING
… y esta es mi historia.

#EnHebrasMatemáticas #Orgullo2019 #Pride2019

Dentro HILO ⬇️⬇️
Hace unos días, Robin [Gandy] y yo estuvimos en Hollymeade.

A pesar de todo no me he encontrado mal y me alegró ver cómo ha crecido la vieja enredadera. Aquella casa, que compré con tanta alegría, me ha transportado, sin embargo, a los hogares que dejé olvidados en la memoria.
Nada me aturde más como viajar a mi más tierna infancia. La oscuridad en el recuerdo es suplida por el frío más gélido, y por la soledad de la casa de los Ward, que nos acogieron a John y a mí, mientras nuestros padres seguían en Madrás.
Read 62 tweets
As we celebrate the 100th anniversary of the first test of #Einstein's theory of General Relativity by deflection of light on the sun, let us not forget that 200 years ago the effect was thought to be unobservably small.

backreaction.blogspot.com/2015/04/a-wond…
This estimate was possible because a similar effect should also take place in Newtonian gravity, just smaller by a factor of two. This was derived in 1801 by the German astronomer Johann Georg von Soldner.

de.wikisource.org/wiki/Ueber_die…
Soldner was well aware that the effect he calculated was miniscule, but refused to apologize. He wrote:

"Incidentally I do not think it should be necessary for me to apologize that I publish this article even though the result indicates that the deviation is unobservably small."
Read 10 tweets
Hoy es 7 de febrero y debemos hablar de e. Sí, del número e. Hoy, en notación anglosajona, es February 7, es decir, 2.7.

Ingenieros, biólogos, físicos, químicos, matemáticos, paleontólogos, médicos, estadísticos, financieros (as):

Hoy es un buen día para hablar del número e.
En realidad, e no es 2.7, sino que es más parecido a:

2.71828182845904523536028747135266249775724709369995957496696762772407663035354759457138217852516642742746639193200305992181741359662904357290033429526059563073813232862794349076323382988075319525101901157383418793070215408…
Este microrrelato puede ayudarte a recordar sus veinte primeras cifras.

Una a una, las palabras de este microrrelato tienen el número de letras que indica el desarrollo decimal de e. ¡Quién lo diría! Una regla mnemotécnica, vaya.

Vamos a conocer el número e un poco mejor...
Read 19 tweets
8 inspiring quotes of famous people.. #TooGoodNotToShare ..

✅Never play with the feelings of others because you may win the game but the risk is that you will surely lose the person for a life time

#SHAKESPEARE
✅The world suffers a lot.NOT because of the violence of bad people, But because of the silence of good people
#NAPOLEON

✅I am thankful to all those who said NO to me.It’s because of them I did it
#EINSTEIN
✅If friendship is your weakest point then you are the strongest person in the world
#ABRAHAMLINCOLN

✅Laughing faces do not mean that there is absence of sorrow but it means that they have the ability to deal with it
#CHARLIECHAPLIN
Read 5 tweets

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