Depuis quand sait-on que la vitesse de l...

La métrologie, c’est la science de la mesure. Dit comme ça, cela paraît abstrait, voire anodin. Pourtant, sans elle, rien ne fonctionne : ni l’industrie, ni le commerce, ni la médecine, ni même le numérique. C’est elle qui garantit que le temps, le poids, la température, la tensi ... Show More

Imaginez une balle posée contre un mur vertical. À l’arrêt, elle tombe. Classique. Mais maintenant, imaginez qu’elle commence à grimper toute seule, lentement mais sûrement, sans moteur, sans aimant, sans trucage. Ça semble impossible ? Et pourtant, c’est ce qu’ont réussi des che ... Show More

Tout le monde ou presque en a fait l’expérience : une balade en forêt, un frottement léger contre une plante anodine… et soudain, une brûlure, des démangeaisons, parfois des petits boutons rouges. Pas de doute : vous venez de croiser une ortie. Mais pourquoi cette plante, a prior ... Show More

On this episode we finally do away with the idea of the luminiferous aether, and get to the biggest name in all of Science, Albert Einstein. What does Relativity mean, in the context of the aether, electromagnetism, and the studies of lights motion? What does it mean for time? Le ... Show More

The speed of light is constant but is it possible to slow it down? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 

Daniel and Jorge answer listener questions about ice ages, black holes and the speed of light. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 

Depuis quelques années, la Terre perd de sa luminosité. Je vais vous expliquer pourquoi la terre brille moins ? Voir Acast.com/privacy pour les informations sur la vie privée et l'opt-out. Hébergé par Acast. Visitez acast.com/privacy pour plus d'informations. 

Why can't we travel faster than light? Can we ever reach the stars? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 

Get ready to explore a 10 billion year old mystery! A closely bound duo of energetic quasars, the hallmark of a pair of merging galaxies, have been discovered when the Universe was only 3 billion years old. What secrets do these quasars hold and why have they lasted so long? Join ... Show More

Why do particle physicists discount the beautiful signal of dark matter from the DAMA experiment? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 

Daniel and Jorge talk about how close photons and protons can get to the speed of light, and what's stopping them!See omnystudio.com/listener for privacy information. 

Daniel talks about how astronomers can measure or deduce the mass of a star, and why it controls its fate. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information. 

How do you measure a star? In the middle of the 20thcentury, an interdisciplinary and international community of scientists began using radio waves to measure heavenly bodies and transformed astronomy as a result. David P. D. Munns‘s new book charts the process through which radi ... Show More