World’s First Perpetual Motion Machine? | ASTOUNDE.com Can this machine operate forever? Since at least the 12th century, man has sought to create a perpetual motion machine; a device that would continue working indefinitely without any external source of energy. A large scientific contingent thinks such a device would violate the laws of thermodynamics, and is thus impossible. Could it be that as a race, we don’t fully understand the laws of physics and such a device may indeed be possible? Norwegian artist and mathematician Reidar Finsrud is an outside the box thinker that has devised a machine that he believes achieves true perpetual motion. The dream is that if we’re able to produce perpetual motion machines, that we’d have tapped into the holy grail of sustainability: an infinite energy source. A device that requires no input to run that could be affixed to a generator would harvest free energy to power whatever we so pleased. What are your thoughts? Source: Finsrud Comments comments
'Space Chronicles': Why Exploring Space Still Matters After decades of global dominance, America's space shuttle program ended last summer while countries like Russia, China and India continue to advance their programs. But astrophysicist Neil deGrasse Tyson, author of the new book Space Chronicles: Facing the Ultimate Frontier, says America's space program is at a critical moment. He thinks it's time for America to invest heavily in space exploration and research. "Space exploration is a force of nature unto itself that no other force in society can rival," Tyson tells NPR's David Greene. He sees this "force of nature" firsthand when he goes to student classrooms. But spending for space programs isn't where Tyson would like it to be. "I think if you double [the budget], to a penny on the dollar, that's enough to take us in bold visions in a shorter time scale to Mars, visit asteroids, to study the status of all the planets," he says. Today, Mars is bone-dry; it once had running water.
ILLUSTRAZIONE: I dipinti di Magritte animati - Osso Magazine ILLUSTRAZIONE: I dipinti di Magritte animati L'illustratrice tedesca Raphaëlle Martin ha deciso di rendere omaggio al pittore surreale René Magritte in modo originale: ha animato le tele iconiche dell'artista trasformandole in composizioni in movimento. L'idea è venuta dopo aver letto qualche scritto su Magritte e aver visto qualche lavoro ed aver pensato che nei suoi quadri sarebbero perfetto un po' di movimento. Raphaëlle non si è limitata ad animare le opere, ma ha aggiunto una sua interpretazione, amplificando i colori originali e aggiungendo gialli dorati e rossi brillanti. Le animazioni di Martin, inoltre, risultano granulose, come se lo spettatore stesse guardando film d'epoca. Immagini di Raphaëlle Martin
ILLUSTRAZIONE: I dipinti di Magritte animati - Osso Magazine ILLUSTRAZIONE: I dipinti di Magritte animati L'illustratrice tedesca Raphaëlle Martin ha deciso di rendere omaggio al pittore surreale René Magritte in modo originale: ha animato le tele iconiche dell'artista trasformandole in composizioni in movimento. L'idea è venuta dopo aver letto qualche scritto su Magritte e aver visto qualche lavoro ed aver pensato che nei suoi quadri sarebbero perfetto un po' di movimento. Raphaëlle non si è limitata ad animare le opere, ma ha aggiunto una sua interpretazione, amplificando i colori originali e aggiungendo gialli dorati e rossi brillanti. Le animazioni di Martin, inoltre, risultano granulose, come se lo spettatore stesse guardando film d'epoca. Nella serie vediamo la mela di 'Le Fils de l'Homme' girare attorno ad un'asse, dalla famosa pipa di 'La Trahison des Images' esce del fumo e le baguette galleggianti di 'Le Légende Dorée' ruotano in cielo. Immagini di Raphaëlle Martin
Physicists Achieve Quantum Teleportation of Photon Over 25 Kilometers For the first time, a team of physicists have successfully teleported a quantum state of a photon to a crystal over 25 kilometers away through a fiber optic cable. This effectively showed that the photon’s quantum state, not its composition, is important to the teleportation process. The team was led by Nicolas Gisin of the University of Geneva and the results were published in the journal Nature Photonics. The quantum state of the photon is able to preserve information under extreme conditions, including the difference between traveling as light or becoming stored in the crystal like matter. To test this and ensure what they were observing was actually happening, one photon was stored in a crystal while the other was sent along optical fiber, over a distance of 25 kilometers. The photon did not physically “teleport” as we are used to hearing about in science fiction, where someone’s body can moved from place to place in a matter of seconds.
Georges Lemaître Monseigneur Georges Henri Joseph Édouard Lemaître, (French: [ʒɔʁʒə ləmɛtʁ] ( ); 17 July 1894 – 20 June 1966) was a Belgian Roman Catholic priest, astronomer and professor of physics at the Université catholique de Louvain.[1] He was the first known academic to propose the theory of the expansion of the Universe, widely misattributed to Edwin Hubble.[2][3] He was also the first to derive what is now known as Hubble's law and made the first estimation of what is now called the Hubble constant, which he published in 1927, two years before Hubble's article.[4][5][6][7] Lemaître also proposed what became known as the Big Bang theory of the origin of the Universe, which he called his 'hypothesis of the primeval atom or the "Cosmic Egg".[8] Biography[edit] According to the Big Bang theory, the universe emerged from an extremely dense and hot state (singularity). In 1925, on his return to Belgium, he became a part-time lecturer at the Université catholique de Louvain. Work[edit]
Il riferimento fotografico e le reference dei classici Disney - Roba da Disegnatori Era da un po’ di tempo che pensavo a come presentare questo post. Oggi sono capitata casualmente su un album dedicato alle foto reference Disney e ho deciso di rispolverare l’argomento. Trovo sempre un po’ di resistenza nei confronti dell’uso di reference (riferimenti) per la costruzione delle tavole, sopratutto quelle articolate per composizione o anatomia. In realtà non c’è nulla di sbagliato nell’utilizzarle: il riferimento, nel disegno, fornisce un’impronta importante per chi sta imparando a disegnare, per chi deve solidificare la propria esperienza e studiare forme e proporzioni specifiche di soggetti non comuni; ma non è tutto. Molti restano stupiti nell’apprendere che in realtà, l’uso di riferimenti fotografici o video, è sempre stato prezioso anche per chi si occupa di disegno per professione. Nel libro “Le chiavi del disegno” di Bert Dodson, questo è spiegato più chiaramente: Nel campo specifico dell’animazione, invece, l’uso di reference è più spontaneo. La carica dei 101 (1961)
iPad App Builder, iPad App Maker, iPad App Creator, App Generator | Appy Pie Now develop applications for an Apple iPad using Appy Pie’s iOS iPad App Builder. This app creator software is a tool that will help you build applications for iPad with ease. Creating apps, using this app maker doesn’t require any previous knowledge of coding or any experience of mobile app development. This app creator is based on simple drag and drop operation and allows users to create beautiful applications within minutes. Apple’s iPad is the most loved tablets available in the market and with the launch of iOS 7, its user-base is only going to increase. Appy Pie’s iOS iPad App builder offers you various premium features to keep your app users engaged with your application. Updating and modifying your application with Appy Pie’s App maker is very easy, users can easily make changes to their applications and the changes made will reflect on the app within minutes. The iPad app builder from Appy Pie is unique and is most favoured by developers because of following reasons:
Hawking Radiation Recreated In A Laboratory A researcher claims to have produced a simulation of Hawking radiation, which if true will give physicists the chance to test one of Stephen Hawking's most significant predictions. In 1974, Hawking upended ideas about black holes with his theory that just outside the event horizon, particle-antiparticle pairs should appear as a result of the black hole's gravitational field. One of these would be drawn into the hole, but the other escape. Hawking's equations have won widespread support from physicists, and are a major contributor to his reputation. Now Professor Jeff Steinhauer of the Technion-Israel Institute of Technology claims to be getting close. The fluctuations occur in pairs, modelling the particle-antiparticle pairs appearing around a black hole. In Nature, Steinhauer reported, “the observation of Hawking radiation emitted by this black-hole analogue.” Cowen notes that it is still unclear how well Steinhauer's creation models a real black hole. Image CC BY-SA 2.5
New Study: Smart People More Likely to Use Drugs I have a feeling they won’t be mentioning this in DARE class. A new British study finds children with high IQs are more likely to use drugs as adults than people who score low on IQ tests as children. The data come from the 1970 British Cohort Study, which has been following thousands of people over decades. So much of what we’ve been told about drugs and drug users turns out to be the opposite of the truth, it’s amazing that the anti-drug fanatics are able to find any audience at all anymore. It ought to be intuitive that the curiosity which comes along with above-average intelligence would also be correlated with a heightened interest in experiencing altered states of consciousness.
Igniting individual purpose | McKinsey&Company In these stressful, surreal times, it’s understandable for CEOs to fixate on urgent corporate priorities at the expense of more intangible, personal considerations. How important is getting your people to think about their “purpose in life” right now when you’re worried about their well-being—not to mention corporate survival? It’s more important than you think. During times of crisis, individual purpose can be a guidepost that helps people face up to uncertainties and navigate them better, and thus mitigate the damaging effects of long-term stress. People who have a strong sense of purpose tend to be more resilient and exhibit better recovery from negative events. Indeed, our research conducted during the pandemic finds that when comparing people who say they are “living their purpose” at work with those who say they aren’t, the former report levels of well-being that are five times higher than the latter. Purposeful people also live longer and healthier lives. Get personal Recruiting.
Islamisme à l’école : des profs brisent l’omerta, Le Parisien Sans être une généralité, ni le fait de tous les établissements en France, les incidents de cours et les tensions de préaux mettant en cause la laïcité semblent bien plus nombreux que ce que donnent à voir les statistiques officielles : 935 cas d'entraves aux valeurs de la République ont été remontés entre septembre 2019 et mars 2020, selon le bilan publié il y a une semaine par l'Education nationale à la Sorbonne, à l'endroit même où sera rendu ce mercredi l'hommage national à Samuel Paty. «Qui est le mâle de la truie ? Au moment de dire cochon, personne n'a voulu répondre» Aurélie, institutrice dans le Val-d'Oise Quel est le petit de l'âne ? VIDÉO. Choquée, l'institutrice n'a pourtant rien dit à sa hiérarchie. « Pour quoi faire ? «Vous les Français, vous aimez trop parler de sexualité, un classique» Marie, prof de SVT dans l'Essonne Newsletter - L'essentiel de l'actu Chaque matin, l'actualité vue par Le Parisien Bruno, prof d'histoire géo en Ile-de-France VIDÉO. VIDÉO. VIDÉO. VIDÉO. VIDÉO.
When Parallel Worlds Collide . . . Quantum Mechanics Is Born Parallel universes – worlds where the dinosaur-killing asteroid never hit, or where Australia was colonised by the Portuguese – are a staple of science fiction. But are they real? In a radical paper published this week in Physical Review X, we (Dr Michael Hall and I from Griffith University and Dr Dirk-André Deckert from the University of California) propose not only that parallel universes are real, but that they are not quite parallel – they can “collide”. In our theory, the interaction between nearby worlds is the source of all of the bizarre features of quantum mechanics that are revealed by experiment. Many worlds in existing interpretations The existence of parallel worlds in quantum mechanics is not a new idea in itself – they are a feature of one of the leading interpretations of quantum mechanics, the 1957 “many worlds interpretation” (MWI). First, its formalism is extremely remote from everyday experience. Heads or tails? Many interacting worlds Implications and applications
Does Marijuana Make You Stupid? | Wired Science Marijuana is currently regulated by the United States government as a Schedule I drug, placing it in the same category as heroin, MDMA and LSD. This is largely due to the first condition of Schedule I drugs, which is that the substance “has a high potential for abuse.” The language in that clause is deliberately vague. Does abuse equal addiction? Probably not, since marijuana is not addictive like other Schedule I drugs. Rather, the case for marijuana “abuse” has always stemmed from its cognitive effects. That, at least, has been the collective stereotype for decades. The lower education levels of the pot smokers — and their greater likelihood of being male — had made it look like marijuana had significantly affected their intelligence. Once these population differences were corrected for, the long-term effects of marijuana use disappeared: The scientists found that “there were no significant between group differences.” cottage Swiss cake This answer is pretty obvious: cheese.