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Timeline Of Major Physics Discoveries (The Onion):

 

American physicists recently discovered that a tiny subatomic particle called a muon does not conform to the laws of physics as currently understood, suggesting the potential discovery of a brand-new form of physics. The Onion looks back at a timeline of humankind’s major physics discoveries.

 

461 BCE: Greek philosopher Anaxagoras becomes first person to suggest that stuff is made up of other stuff.

 

349 BCE: Aristotle proposes concept of a geocentric universe, like a moron.

 

1070: Magnetic poles of Earth conclusively established after someone finds a fully functional compass buried in the sand.

 

1254: Italian theologian Thomas Aquinas discovers that women burn at the same rate whether they’re witches or not.

 

1687: After tripping and falling in front of colleagues, Isaac Newton set out to prove that it wasn’t him but the Earth’s invisible force that made him look like an idiot.

 

1895: German physicist Wilhelm Röntgen successfully produces X-rays after being tasked with finding way to view a person’s skeleton without first killing and skinning them.

 

1955: Velcro.

 

2004: Tim discovers that if you reach max speed on a motorcycle in Grand Theft Auto and hit a concrete median head on, your guy flies so fucking far.

 

2643: High school students laugh as teacher explains how primitive 21st-century people didn’t understand simple muons.

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Wolfram fait le point en ce moment même sur la première année de son Wolfram Physics Project, sur son channel twitch :

 

Pour avoir suivi (ou plutôt essayéde suivre…) quelques une de ses sessions de travail (qu’il diffuse également sur twitch), ça promet d’être intéressant.

  • Yea 1
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Big Data, démographie, mouvements de population, sociologie du mariage et de la famille, exogamie, infidélité maritale... l'un de ces sujets vous intéresse ? Ne ratez pas cette étude extraordinaire sur le plus grand arbre généalogique jamais reconstitué, portant sur cinq siècles, 11 générations, et rien moins que 13 millions d'individus. Je ne peux même pas vous résumer les résultats, tant le scope est vaste (mais, dans l'ensemble, ça corrobore pas mal ce qu'on savait ou dont on se doutait).

 

https://science.sciencemag.org/content/360/6385/171

  • Yea 3
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  • 3 weeks later...

Je trouve que l'image choisie pour illustrer l'article prête quelque peu à confusion...

 

Pigs can breathe oxygen via their rectum, so humans probably can too

 

14-may_anal-ventilation.jpg?width=778

Medical oxygen is normally delivered to the lungs in gas form, but there could be another way

 

Citation

Piping an oxygen-rich liquid through the anus could be a life-saver. A new treatment for failing lungs that involves such a process has been successfully tested in pigs.

 

People with low blood oxygen levels may be treated in intensive care by being put on a ventilator, which blows air into their lungs. But this usually requires sedation and can injure delicate lung tissue. “It can be really damaging,” says Takanori Takebe at the Tokyo Medical and Dental University.

 

Takebe wondered if people could absorb oxygen through their intestines, which happens in some freshwater fish. In mammals, the rectum is lined with a thin membrane that allows absorption of certain compounds into the bloodstream, and doctors already exploit this by giving some medicines as suppositories.

 

Takebe’s team tested the idea on pigs by giving them enemas of a type of fluid called a perfluorocarbon, which can hold high levels of oxygen. Such fluids have been investigated as a way of breathing liquid, and are already used to help protect the lungs of premature babies, so are likely to be non-toxic when used in this novel way, says Takebe.

 

The researchers anaesthetised four pigs and put them on a ventilator that gave them a lower breathing rate than normal, so their blood oxygen levels fell. When they gave two of the pigs enemas of the oxygenated fluid, replaced once an hour, their blood oxygen levels rose significantly after each infusion. The same effect happened when the fluid was delivered by a tube surgically inserted into the rectums of the other two pigs.

 

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Le 03/08/2020 à 07:10, Freezbee a dit :

 

- "Dis-moi, Roger, tu penses qu'on est encore loin de l'ovule?"

- "Plutôt, oui, on vient juste de passer les amygdales!"

  • Haha 3
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  • 3 weeks later...
il y a une heure, Adrian a dit :

 

J'ai déjà dû le poster ailleurs, mais il n'a jamais été autant à sa place :

 

LWHMzyc.jpg

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Il y a 2 heures, Lancelot a dit :

On peut avoir une version avec "I fucking love science" ou "zététiciens" ?

Help yourself (plein de générateurs de memes existent sur les Interwebs). :)

Dieux Tombés Sur la Tête.jpg

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Allez, c'est l'occasion de la ressortir :

 

Un jour, un professeur demande à deux étudiants, un taupin et un carabin, d'apprendre l'annuaire téléphonique par cœur... Le taupin demande pour quoi faire, le carabin demande pour quand.

  • Haha 1
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Le 17/05/2021 à 19:21, h16 a dit :

 

Ils avaient tout compris

image.png

 

 

J'ai appris cela il y a qq temps, souffler dans le cul était une des méthodes de réanimation ancienne !

J'ignore complètement quelle théorie soutenait cette pratique curieuse.

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  • 2 weeks later...

Affaire Bételgeuse, suite (et fin ?)

 

A dusty veil shading Betelgeuse during its Great Dimming

 

Citation

Abstract

Red supergiants are the most common final evolutionary stage of stars that have initial masses between 8 and 35 times that of the Sun1. During this stage, which lasts roughly 100,000 years1, red supergiants experience substantial mass loss. However, the mechanism for this mass loss is unknown2. Mass loss may affect the evolutionary path, collapse and future supernova light curve3 of a red supergiant, and its ultimate fate as either a neutron star or a black hole4. From November 2019 to March 2020, Betelgeuse—the second-closest red supergiant to Earth (roughly 220 parsecs, or 724 light years, away)5,6—experienced a historic dimming of its visible brightness. Usually having an apparent magnitude between 0.1 and 1.0, its visual brightness decreased to 1.614 ± 0.008 magnitudes around 7–13 February 20207—an event referred to as Betelgeuse’s Great Dimming. Here we report high-angular-resolution observations showing that the southern hemisphere of Betelgeuse was ten times darker than usual in the visible spectrum during its Great Dimming. Observations and modelling support a scenario in which a dust clump formed recently in the vicinity of the star, owing to a local temperature decrease in a cool patch that appeared on the photosphere. The directly imaged brightness variations of Betelgeuse evolved on a timescale of weeks. Our findings suggest that a component of mass loss from red supergiants8 is inhomogeneous, linked to a very contrasted and rapidly changing photosphere.

 

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Titre un peu putaclick, snowball sampling... et article payant :

 

The dark side of the rainbow: Homosexuals and bisexuals have higher Dark Triad traits than heterosexuals

 

Citation

Research on the Dark Triad traits—psychopathy, Machiavellianism, and narcissism—reveals malevolent, transgressive, and self-centered aspects of personality. Little is known about the Dark Triad traits in individuals differing in sexual orientation, with some studies showing that non-heterosexual individuals have Dark Triad profiles resembling those of opposite-sex heterosexual individuals. In a cross-national sample (N = 4063; 1507 men, 2556 women; Mage = 24.78, SDage = 7.55; 90.58% heterosexual, 5.74% bisexual, 2.83% homosexual) collected online via student and snowball sampling, we found in sex-aggregated analyses that bisexuals and homosexuals were more Machiavellian than heterosexuals. Bisexuals were more psychopathic and narcissistic than heterosexuals. The only significant findings in within-sex comparisons showed that self-identified bisexual women scored higher on all Dark Triad traits than heterosexual women. The findings support the gender shift hypothesis of same-sex sexual attraction in bisexual women, but not in lesbians nor in men. The finding that bisexuals are the sexual orientation group with the most pronounced Dark Triad profiles is opposite to what would be predicted by the prosociality hypothesis of same-sex sexual attraction. The life history and minority stress implications of these findings are discussed as alternative hypotheses to the gender shift hypothesis.

 

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il y a 3 minutes, Freezbee a dit :

The only significant findings in within-sex comparisons showed that self-identified bisexual women scored higher on all Dark Triad traits than heterosexual women.

Ça me semble constituer la vraie conclusion, parce que comparer les caractères des hommes et des femmes, c'est s'exposer de plein fouet au paradoxe de Simpson.

 

J'irai quand même voir ça en détail, des fois qu'on puisse trouver des signaux faibles dans les données. Ceci étant, ça tend à alimenter le discours selon lequel les bis ne sont pas vraiment des bis mais des opportunistes (discours auquel je ne souscris pas particulièrement).

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  • 2 weeks later...

C'est comme partout, il y a des effets de mode pour certains domaines de recherche et (surtout) l'utilisation de certains concepts qui bien placés dans un titre ouvrent la porte à des journaux de plus haut niveau ou à des financements juteux. Ça intéresserait aussi Kuhn sans doute.

  • Yea 1
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  • 2 weeks later...
il y a 1 minute, RaHaN a dit :

 

 

Je serais très, très  curieux d'avoir les mêmes courbes pour le corpus francophone. Là on voit que l'anxiété du corpus anglophone monte doucement (depuis des niveaux certes très bas) de 1980 à 1999, puis beaucoup plus rapidement après (ça a commencé avant 2001, donc) ; mais que pour le corpus germanophone, ça ne monte fort que depuis 2007. Et on observe un effondrement du "should" dans ces deux corpus, alors qu'il explose dans le corpus hispanophone. Ça ouvre vraiment plein de questions.

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Les laboratoires publics français suspendent leurs travaux sur les prions en raison d’une suspicion de cas de maladie de Creutzfeldt-Jakob

 

Dans un autre article :

 

Citation

Emilie H., assistante ingénieure de l’unité de virologie et immunologie moléculaire de l’Inra, manipule un prion, responsable de la maladie de Creutzfeldt-Jakob. Une opération à très haut risque. La pince qu’elle utilise dérape, ses deux paires de gants en latex sont percées, son pouce entaillé.

 

Horrible

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  • 1 month later...

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      Nan, mais la littérature américaine n'existe pas ; c'est surtout ça.
       
      (et c'est dommage d'avoir Bandini dans un nom et de ne rien en faire)
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