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Sixty Symbols - Physics and Astronomy videos. The Logic Lab: simulating simple circuits of logic gates. Iris AI - Your Science Assistant. Mécanique Quantique - Physiciens. Interpretations of quantum mechanics. An interpretation of quantum mechanics is a set of statements which attempt to explain how quantum mechanics informs our understanding of nature.

Interpretations of quantum mechanics

Although quantum mechanics has held up to rigorous and thorough experimental testing, many of these experiments are open to different interpretations. There exist a number of contending schools of thought, differing over whether quantum mechanics can be understood to be deterministic, which elements of quantum mechanics can be considered "real", and other matters. This question is of special interest to philosophers of physics, as physicists continue to show a strong interest in the subject.

They usually consider an interpretation of quantum mechanics as an interpretation of the mathematical formalism of quantum mechanics, specifying the physical meaning of the mathematical entities of the theory. History of interpretations[edit] Main quantum mechanics interpreters. The Official String Theory Web Site. Richard Dawkins. What Is Nothing? A Mind-Bending Debate about the Universe Moderated by Neil deGrasse Tyson. 10 Enormous Numbers. Technology One of the first questions that kids often ask is “What is the biggest number?”

10 Enormous Numbers

Helter Skelter: Negli aeroporti americani conosceranno il teorema di Bayes? Study suggests humans are only capable of having five people in their closest circle. (—A trio of researchers affiliated with the University of Oxford in England and Aalto University School of Science in Finland has conducted a study of human behavior and has found evidence backing up a prior theory that suggests humans have different layers that make up their social circle with different numbers of people in them.

Study suggests humans are only capable of having five people in their closest circle

In their paper uploaded to the preprint server, arXiv, they describe their study which involved analyzing cell phone records to count calls, what they found and that they believe it means for us a group. One of the researchers, Robin Dunbar, was part of a team that back in the 1990's studied the correlation between brain size in primates and the number of individuals in their social groups. They found that the bigger the brain, the more members of their groups. More recently, he and colleagues have conducted some experiments that suggest that humans have layers or groups of contacts, with the closet layers having fewer people, and the farthest, more.

Earth Rings in 2016 With its Warmest January on Record. After recording its warmest year on record in 2015, Earth continued its record-warm streak into 2016, with January 2016 being the planet's warmest January since record keeping began in 1880, said NOAA's National Centers for Environmental Information (NCEI) on Wednesday.

Earth Rings in 2016 With its Warmest January on Record

The month had the second warmest departure from average (+1.04°C) of any month since 1880, with only December 2015 being warmer. NASA also rated January 2016 as the warmest January on record, but said it edged out December 2015 for being the warmest month in the entire historical record--1.13°C above average. The four warmest months since 1880 (as measured by departure from average in the NASA database) were the past four months. Natural Sciences. Life as Art: The Legacy of Lynn Margulis. Why Life Does Not Really Exist. The tardigrade genome has been sequenced, and it has the most foreign DNA of any animal. Scientists have sequenced the entire genome of the tardigrade, AKA the water bear, for the first time.

The tardigrade genome has been sequenced, and it has the most foreign DNA of any animal

And their results suggest that this weird little creature has the most foreign genes of any animal studied so far – or to put it another way, roughly one-sixth of the tardigrade's genome was stolen from other species. We have to admit, we're kinda not surprised. A little background here for those who aren’t familiar with the strangeness that is the tardigrade – the microscopic water creature grows to just over 1 mm on average, and is the only animal that can survive in the harsh environment of space. How to Find and Care for a Pet Tardigrade ( Water Bear ) Why do chimpanzees throw stones at trees? Newly discovered stone tool-use behavior and accumulation sites in wild chimpanzees reminiscent to human cairns February 29, 2016.

Why do chimpanzees throw stones at trees?

Mysterious Chimpanzee Behavior May Be Evidence of "Sacred" Rituals. I trampled clumsily through the dense undergrowth, attempting in vain to go a full five minutes without getting snarled in the thorns that threatened my every move.

Mysterious Chimpanzee Behavior May Be Evidence of "Sacred" Rituals

Qualche sporca lezione di fisica - Prismo. Paleontologist Visits Creationist Museum, Bursts Into Tears. By now, you have probably heard of the creationist museum in Kentucky.

Paleontologist Visits Creationist Museum, Bursts Into Tears

If you haven’t: it’s basically a massive building (70,000 square feet, costing $27M) full of lies and made up stories, justifying a belief in young earth creationism. The views espoused by its president, Ken Ham, revolve around a literal belief in the Bible. (Although they are surprisingly silent on all the pro-rape-murder-incest-polygamy verses right next to all the creation stuff in the Bible…) A group of scientists toured the creation museum for fun, as part of a scientific conference.

125 Great Science Videos: From Astronomy to Physics & Psychology. Astronomy & Space Travel A Brief, Wondrous Tour of Earth (From Outer Space) – Video – Recorded from August to October, 2011 at the International Space Station, this HD footage offers a brilliant tour of our planet and stunning views of the aurora borealis.A Universe from Nothing – Video – In 53 minutes, theoretical physicist Lawrence Krauss answers some big enchilada questions, including how the universe came from nothing.A Year of the Moon in 2.5 Minutes – Video – The Lunar Reconnaissance Orbiter has been orbiting the moon for over a year.

125 Great Science Videos: From Astronomy to Physics & Psychology

The footage gets compressed into 2 slick minutes.A Day on Earth (as Seen From Space) – Video – Astronaut Don Pettit trained his camera on planet Earth, took a photo once every 15 seconds, and then created a brilliant time-lapse film.Atlantis’s Final Landing at Kennedy Space Center – Video – After more than 30 years, the space shuttle era comes to a close. Video runs 30 minutes. Physics Biology & Chemistry. Tree of Life - Taxonomy. Scientific Method: Relationships Among Scientific Paradigms. To see the full map of relationships among scientific paradigms, click here or on the image below.

Scientific Method: Relationships Among Scientific Paradigms

Note: The map is a large (8.7 MB) file and may take a while to download. Empirical Zeal. The Philosophy of Science Directory. Edge - All Conversations. Science. Sciences. Free Science Books and Journals. Interactive. Discover Magazine - Science and Technology News, Science Articles. Rationality. Free Science Learning Materials. Math. Mathematics & Physics. Mathematics. Il simbolo dell'infinito. What number is halfway between 1 and 9? Is it 5 — or 3? Ask adults from the industrialized world what number is halfway between 1 and 9, and most will say 5. But pose the same question to small children, or people living in some traditional societies, and they're likely to answer 3.

Cognitive scientists theorize that that's because it's actually more natural for humans to think logarithmically than linearly: 30 is 1, and 32 is 9, so logarithmically, the number halfway between them is 31, or 3. Serie numeriche _-&-_ sequenze. General Issues in Scaling. « PreviousHomeNext » Libri interessanti, scienza. Le origini della logica matematica. Electronic Structure/Periodic Table. Periodic Table. Periodic Table of Elements [Interactive] The 7th Row of the Periodic Table is Finally Complete. The New Periodic Table. ANIMAUX. Learn your body_rtu. Corps Humains. BioDigital Human. Anatomy Arcade. Interactive Biology, by Leslie Samuel.

The Drug Classroom. Sciences. Science. Science with Out of this World Info. Science News – LiveScience. Science. Skeptic. Le lac Antarctique qui ne gèle pas ! (Source : (Lien de l’article ci-dessous : Il y a des lacs sur le continent Antarctique. La plupart sont entourés d’épaisses couches de glaces, mais il en existe un qui contient tant de sel que son eau ne gèle pas, même au plus froid de l’hiver dans la zone la plus froide de la Terre. En réalité c’est plus un étang qu’un lac. Il s’agit de l’étang « Don Juan » situé à l’extrémité Ouest de la vallée de Wright (Fourchette Sud) sur les terres Victoria en Antarctique. Selon Wikipedia, l’étang Don Juan, appelé aussi le lac Don Juan, est un lac hypersalin petit et très peu profond situé à 9 km à l’Ouest du lac Vanda.

Il a été découvert en 1961, et son nom a été créé à partir de ceux des 2 pilotes d’hélicoptère (Don Roe et John Hickley) qui ont participé à sa reconnaissance et à son étude. Bien qu’il ait été découvert en 1961, il est récemment revenu sur le devant de la scène suite à des photos prise par la NASA à l’aide du satellite Earth Observatory (voir ci-dessous). The rise and fall of nuclear power, in 6 charts. The Why Files. Main Page. The Skeptic's Dictionary. Memento des champignons, dictionnaire des champignons, encyclopédie des champignons, guide des champignons, reconnaître les champignons, cuisine du champignon, reconnaissance visuelle du champignon. Les Champignons - Atlas des Champignons - Encyclopédie du champignon - Les champignons et la cuisine - Mycologie - Toxicologie - L'actualité du Champignon - Glossaire des champignons.

Tous les champignons sauvages, le portail du champignon : Tulostoma brumale Tulostome des brumes Tulostome d'hiver Une tête globuleuse ou légèrement applatie d'environ 1 cm de diamètre, un stype cylindrique de 4 cm de haut pour quelques 0,3 de diamètre ... un champignon bien discret, souvent qualifié de rare, qui plus est ne pointe son nez, heu ! Son oeil, qu'à la mauvaise saison, pas mal de raisons pour que la rencontre ne soit pas si fréquente. Aucun intérêt pour la cuisine. Voir la suite ...