Territoire - Population, superficie et densité des principaux pays du Monde en 2014. Peer-Reviewed Paper On EmDrive To Be Published In December. Update (2 September): It has been confirmed to IFLScience by the AIAA that a paper on the EmDrive is being published in December 2016.
They said: “The American Institute of Aeronautics and Astronautics (AIAA) Journal of Propulsion and Power has accepted for publication a paper in the area of electromagnetic propulsion. However, it is AIAA’s policy not to discuss the details of peer reviewed papers before/until they are published. We currently expect the paper in question to be published in December 2016.” Our original article is below. According to the International Business Times, a scientist called Dr José Rodal left a comment on the NASA Spaceflight Forum (which is not actually associated with NASA) about the imminent publication of a peer-reviewed paper confirming that the EmDrive actually does work. Eloi Laurent : "En 40 ans, aucune baisse du chômage n'a jamais été liée à la flexibilité" Here's How We Could Reach Mars In Just 30 Minutes. Faster forms of spacecraft propulsion have been a dream for decades, but now one researcher thinks he has a solid idea.
Known as directed energy propulsion, it would involve firing a laser at a tiny spacecraft to speed it up to a significant fraction of the speed of light, potentially allowing for missions to Mars in less than an hour, rather than the months it takes at the moment. Yes, you read that right. As quick as 30 minutes, by one estimate. The idea was explored by a scientist working on NASA’s Innovative Advanced Concepts (NIAC) program.
Philip Lubin, from the University of California at Santa Barbara’s Experimental Cosmology Group, explained the idea last year. Faut-il croire au réchauffement climatique ? – Science étonnante. Diana Laufenberg: How to learn? From mistakes. Oren Yakobovich: Hidden cameras that film injustice in the world’s most dangerous places. Stephen Petranek: 10 ways the world could end. Technology Is the Beauty and Terror of the Human Mind Turned Inside Out. Technology Is the Beauty and Terror of the Human Mind Turned Inside Out In a recent video, Jason Silva says the goal of humanity is to turn our minds inside out, to actualize our imaginations in the real world through technology.
He terms humankind’s unique ability to imagine and create a “secondary force of evolution.” “Human beings take in matter of low organization,” Silva says, “We put it through the filters of the human mind, and we extrude space shuttles and wireless communications networks and smartphones.” Malcolm Gladwell: The unheard story of David and Goliath.
Moonshot Thinking. Matt Killingsworth: Want to be happier? Stay in the moment. Hans and Ola Rosling: How not to be ignorant about the world. James Flynn: Why our IQ levels are higher than our grandparents' Projet Orion. Un article de Wikipédia, l'encyclopédie libre.
Pour les articles homonymes, voir Orion. Vue d'artiste d'un vaisseau Orion selon les principes de conception de la NASA. Le Projet Orion fut la première étude de conception d'un véhicule spatial mû par propulsion nucléaire pulsée, idée proposée par Stanislaw Ulam en 1947. Le projet, initié dans les années 1950, était mené par une équipe d'ingénieurs et de physiciens de General Atomics, comprenant quelques célébrités telles que le physicien Theodore Taylor. Sur la demande de Taylor, le physicien Freeman Dyson quitta pendant une année ses travaux universitaires pour diriger le projet. En se basant sur l'énergie nucléaire, Orion aurait théoriquement permis d'obtenir à la fois une forte poussée et une importante impulsion spécifique, le Graal de la propulsion spatiale.
Historique[modifier | modifier le code] Démarrage du projet[modifier | modifier le code] Onora O'Neill: What we don't understand about trust. Talks to restore your faith in politics. Dan Gilbert: Why we make bad decisions. What We Fear : TED Radio Hour. 5 examples of how the languages we speak can affect the way we think. Keith Chen (TED Talk: Could your language affect your ability to save money?)
What if the horse knows the way? Stephen Hawking: Questioning the universe. Ben Saunders: Why bother leaving the house? Mark Pagel: How language transformed humanity. Ruth Chang: How to make hard choices. TED Radio Hour. Our Growing Addiction to “Cognitive Ecstasy” Drives Technology’s Progress…And That’s Okay. Why are humans so damn curious?
Are Chimps Natural Born Killers? Lethal aggression among chimps has been viewed as either primitive warfare or the result of human interference.
Now, researchers show that chimp-on-chimp violence is normal -- nay, adaptive -- behavior that gives the perpetrators an edge in the evolutionary sense. The study was published in Nature this week. Scientists trying to understand the factors contributing to aggressive behavior in our closest relatives have proposed two theories on why apes of the same species will kill each other.
First, lethal violence may be the result of adaptive strategies to enhance access to valuable resources (like food and mates) by eliminating competition when the costs of killing are low. Human Population Predicted To Reach 12 Billion By 2100. At 7.2 billion, the human population is already a serious burden on resources and a threat to the environment and species.
Imagine, then, how dire the global situation would be if we were to reach 12 billion, because if the current rate continues, that is what our planet may be facing at the turn of the next century. According to a new study by the United Nations (UN) and the University of Washington, there is an 80% probability that the world population will reach between 9.6 and 12.3 billion in 2100.
Ooho! Bulles d'eau! Adieu bouteilles de plastique! - Science Virale. Chaque année, 89 milliards de bouteilles d’eau en plastique sont vendues à travers le monde.
Des bouteilles qui à peine vidées, finissent bien souvent à la poubelle, constituant à l’échelle mondiale une quantité considérable de déchets. Existerait-il une solution au problème majeur de l’entassement de ces bouteilles dans les décharges ? Rodrigo Garcia Gonzalez, Pierre Paslier et Guillaume Couche l’ont imaginée ! Ces trois designers, basés à Londres, ont conçu une alternative étonnante à la bouteille : un contenant conçu à partir d’algues comestibles assez résistant pour stocker de l’eau. Baptisé Ooho, le matériau forme des sphères qui peuvent prendre plusieurs tailles. De même, les Oohos peuvent être personnalisés, notamment par les entreprises.
Visualizing the Future of Food, Well-Being, and Work with Three Incredible RSA Videos. Why Are Humans Altruistic? The saying “It takes a village to raise a child” can be seen in every community around the globe.
In addition to parental guidance, children are also shaped by extended family members, teachers, coaches, neighbors, and friends. But why does anyone care about the well-being of a child that isn’t theirs and participate in allomaternal care, also known as cooperative breeding? Wouldn’t it be more advantageous for all parents to only devote their energy and resources on their own offspring? In order to answer those questions, researchers needed to examine the origins of altruism, which is the practice of performing acts for others without expectation of reward. Researchers examined groups of primates to learn more about how concepts like altruism and cooperation evolved and the different forms it has taken on.
Humans and chimps split from a common ancestor about 5-7 million years ago, whereas apes and monkeys diverged roughly 24 million years ago. How to Plan a Revolution (an Excerpt from Abundance) How did a simple Facebook group mobilize 12 million people in 40 countries in just one month? That’s exactly what Oscar Morales accomplished when, in 2008, he created a Facebook group called A Million Voices Against FARC. I wrote about his story in Abundance — the excerpt follows. You’ve heard me say that technology is a resource-liberating force, check out the human-resources liberated by this! One Million Voices, an excerpt from Abundance. Humans Aren’t the Pinnacle of Evolution and Consciousness—We’re Only a Rung on the Ladder. In his latest video, host of National Geographic’s Brain Games and techno-poet, Jason Silva, explores the universe’s tendency to self-organize.
Biology, he says, seems to have agency and directionality toward greater complexity, and humans are the peak. “It’s like human beings seem to be the cutting edge," Silva says. "The evolutionary pinnacle of self-awareness becoming aware of its becoming.” I know Silva isn’t saying evolution ends with humans in our current form. Climate Change and Pollution Threaten Future Food Supplies. There have been studies implicating air pollution for causing lower crop yields. There have been studies accusing climate change of the same thing. However, scientists have often overlooked the damaging potential of these two factors working in concert. A new study led by Colette Heald of MIT has revealed that when pollution and climate change are factored together, four of the largest crops in the world will be severely affected by 2050, which threatens global food security.
The team’s findings were published in the journal Nature Climate Change. Is Tech Unemployment Good or Bad? Recently, in conversation with Vinod Khosla, Larry Page was asked what he thinks will happen to jobs in the future as technology begins to replace humans. His response was essentially, “everybody will work fewer hours.” Similarly, Richard Branson suggested that in the future, companies might choose to hire two part-time people for every one full-time job, employing more people for less time. Religious Children Struggle To Separate Fact From Fiction. The ability of young children to distinguish fact from fiction varies considerably with exposure to religion, two new studies have found.
Children who did not attend parochial (religious) schools or church were significantly better at identifying characters in religious or fantasy stories as pretend than those who did. The studies have been published in Cognitive Science. For the investigations, researchers enrolled 5- and 6- year old children and separated them into four groups: children who attend public school and church, children who attend public school but not church, children who attend parochial school and church and children who attend parochial school but not church. They then exposed the children to three different types of stories- biblical (religious), fantastical (where the divine element was replaced with magic) or realistic (all supernatural elements removed).
They then asked the children to judge whether the protagonist (lead character) was fictional or real. 5 Scary Effects Of Climate Change That Could Happen In Your Lifetime. NASA Believes Newest Telescopes Could Spot Extraterrestrial Life Within 20 Years. “Two possibilities exist: Either we are alone in the Universe or we are not. Both are equally terrifying.”
-Arthur Clarke Some of NASA’s top scientists held a public panel at the headquarters in Washington, D.C. earlier this week (July 14). They discussed the possibility of extraterrestrial life and how NASA’s current and future technology used for studying exoplanets could aid in its detection; an announcement that could possibly come even within the next twenty years. The first confirmed exoplanet was discovered in 1988. "What we didn't know five years ago is that perhaps 10 to 20 percent of stars around us have Earth-size planets in the habitable zone," Space Telescope Science Institute director Matt Mountain stated.
(1) Religion is a mental disorder. Evidence of Abundance #1: More Leisure, Less Work. Philip Zimbardo: The psychology of evil. The Five Biggest Threats To Human Existence. NASA Reveals Latest Warp-Drive Ship Designs. Look at the picture above. New Study Suggests The World Is On The Brink Of The Next Great Extinction. Just as we all die, all species eventually go extinct. Solving Humanity's Grand Challenges. Pollution-guzzling, Air-cleaning Buildings. According To A Nasa Funded Study, We're Pretty Much Screwed.