![Three-Dimensional Mid-Air Acoustic Manipulation [Acoustic Levitation] (2013,2014-)](http://cdn.pearltrees.com/s/pic/sq/dimensional-manipulation-73597525)
Tagged sharks send Twitter messages to warn tourists if they are approaching a beach Scientists have fixed transmitters to sharks around Western AustraliaWhen a tagged shark swims within range of a beach, an alert is triggeredThis generates an automatic tweet with the size and location of the sharkIt is sent from Surf Life Saving Western Australia's (SLSWA) Twitter feed By Victoria Woollaston Published: 13:57 GMT, 30 December 2013 | Updated: 22:15 GMT, 30 December 2013 Western Australia is now considered the world's deadliest place for shark attacks and since 2012 six people have been killed - with the number of attacks said to be rising. In a bid to solve this problem, scientists from the area have fitted 320 sharks with special transmitters that track the animals’ movements. If a tagged shark swims within a kilometre of any beach along the west coast, a receiver will trigger an alert, which then generates an automatic warning tweet. If a tagged shark swims within a kilometre of any beach along the west coast, a receiver in the water triggers an alert.
L'animal qui détecte la plus haute fréquence sonore est... Fausse teigne de la cire Photo : Ministère de l'agriculture de l'Ontario La fausse teigne de la cire, un papillon européen, est l'animal capable de détecter la plus haute fréquence enregistrée, ont découvert des scientifiques écossais. Les travaux du Dr James Windmill et de ses collègues de l'Université de Strathclyde montrent que l'insecte lépidoptère peut percevoir des fréquences sonores atteignant 300 kHz. Par comparaison, l'oreille humaine perçoit des fréquences sonores allant jusqu'à 20 kHz. Certains animaux comme les cétacés, les chiens et les chauves-souris peuvent se rendre jusqu'à 160 kHz. Une chauve-souris s'approche d'un appât, une fausse teigne de la cire, lors d'une étude américaine réalisée à l'Université Wake Forest. « D'autres animaux, comme les chauves-souris, utilisent les ultrasons pour communiquer. Ils veulent maintenant approfondir leur compréhension de l'oreille de la teigne et de celles d'autres insectes. Le saviez-vous?
Algorave: Programmieren im Club | VICE Alps Programmieren und Party machen scheinen auf den ersten Blick nicht besonders gut zusammen zu passen. Im Algorave jedoch ergeben genau diese beiden Zutaten eine überaus unterhaltsame Symbiose. Vor zwei Jahren hat Alex McLean eine Bewegung gestartet, die inzwischen Musikclubs überall auf der Welt aufmischt. Während er eigentlich nur ein Programm für Live-Sets im Club zu entwickeln wollte, fiel ihm auf, dass schon das Code Schreiben selbst für eine wunderbare Performance elektronischer Musik sorgen kann. Auf einem Algorave wird Programmiersprache zum Instrument und die kryptischen Kommandos werden Zeile für Zeile großflächig auf die Wände projeziert, um dem Publikum die Synthesizer und Drums zu denen sie gerade tanzen in allen digitalen Einzelheiten vorzuführen. Das Video vom Algorave könnt ihr auf Motherboard sehen.
Earth Biggest Volcano Discovered The biggest volcano on Earth has been discovered. In fact it is around the size of the state of New Mexico and is in fact is rivaling some of the largest volcanoes in our solar system. This monster is underwater and has been named Tamu Massif. It was discovered approximately 1,000 miles off the eastern coast of Japan. The volcano is in the Pacific Northwest to the giant, stated William Sager. It was formerly thought that the area, where the volcano is located, was a spot that had many eruption spots instead of just one. The volcano is reported to cover an area of over about 120,000 square miles. The shape of this massive volcano is different from any other sub-marine volcano that has ever been found on Earth. But even with its enormous size, the scientist’s research believe the volcano has never peaked above the ocean. This massive volcano is also thought to be around 145 million years old. The volcano was named partly in honor of the university where Sager was first employed. Sources:
Espace : sur Mars, le son a deux vitesses et il s'atténue plus vite que sur Terre Elle a beau être calme et silencieuse, des Terriens ont réussi à faire parler la planète Mars. Dans une étude publiée dans la revue Nature (en anglais), vendredi 1er avril, des chercheurs détaillent ce que les enregistrements captés par le rover Perseverance ont permis de montrer. C'est la fin d'un silence assourdissant ! A peine atterri, en février 2021, le robot de la Nasa nous faisait parvenir le premier audio jamais capturé sur Mars grâce à un micro, à des fréquences audibles par l'oreille humaine, ce que de précédentes missions avaient tenté sans succès. "Sur Terre, les sons de l'orchestre vous parviennent à la même vitesse, qu'ils soient graves ou aigus. L'environnement sonore de Mars présente d'autres particularités. Le "pari scientifique", celui d'avoir équipé une mission spatiale d'un microphone, est réussi aux yeux de celui qui est co-responsable scientifique de l'instrument SuperCam du rover, où est installé le microphone conçu par l'Isae-Supaéro de Toulouse.
The most powerful man in Hollywood is dead. And you’ve never heard of him. The Psychopath’s Relationship Cycle: Idealize, Devalue and Discard Because they suffer from incurable personality disorders, psychopaths repeat over and over the same relationship cycle, no matter whom they’re dating or for how long. Relationships with them are always castles–or, sometimes, marriages–built on sand. Today I’ll describe the entire process of psychopathic seduction, from its seemingly ideal beginning to its invariably bitter end. In their book on psychopaths in the workplace, entitled Snakes in Suits, Babiak and Hare state that the psychopathic bond follows certain predictable stages: idealize, devalue and discard. This process may take several years or only a few hours. Babiak and Hare explain that although psychopaths are highly manipulative, the process of idealize, devalue and discard is a natural outgrowth of their personalities. During the manipulation phase, Babiak and Hare go on to explain, psychopaths construct the “psychopathic fiction.” This raises the question of why a psychopath idealizes his targets in the first place.
Le son : comment fonctionnent l’ouïe, l’oreille et l’équilibre ? Les ondes sonores, caractérisées par leur fréquence et leur amplitude, sont perçues de manière unique par différents organismes. Qu’est-ce que le son ? Les stimuli auditifs sont des ondes sonores, qui sont des ondes de pression mécaniques qui se déplacent dans un milieu, comme l’air ou l’eau. Il n’y a pas d’ondes sonores dans le vide, car il n’y a pas de molécules d’air pour que les ondes se déplacent. La vitesse des ondes sonores diffère en fonction de l’altitude, de la température et du milieu. Au niveau de la mer et à une température de 20º C, les ondes sonores se déplacent dans l’air à environ 343 mètres par seconde. Comme pour toutes les ondes, il existe quatre caractéristiques principales d’une onde sonore : la fréquence, la longueur d’onde, la période et l’amplitude. L’amplitude, ou la dimension d’une onde du pic au creux, dans le son est entendue comme volume. Quel est le rapport entre l’équilibre et l’oreille ? Qu’est-ce que le système vestibulaire ? La transduction du son
Scientists have found that memories may be passed down through generations in our DNA New research from Emory University School of Medicine, in Atlanta, has shown that it is possible for some information to be inherited biologically through chemical changes that occur in DNA. During the tests they learned that that mice can pass on learned information about traumatic or stressful experiences – in this case a fear of the smell of cherry blossom – to subsequent generations. According to the Telegraph, Dr Brian Dias, from the department of psychiatry at Emory University, said: ”From a translational perspective, our results allow us to appreciate how the experiences of a parent, before even conceiving offspring, markedly influence both structure and function in the nervous system of subsequent generations. “Such a phenomenon may contribute to the etiology and potential intergenerational transmission of risk for neuropsychiatric disorders such as phobias, anxiety and post-traumatic stress disorder.” Research link-
Most amazing NASA space photos of Earth of the year By Daily Mail Reporter Published: 16:19 GMT, 27 December 2013 | Updated: 17:46 GMT, 27 December 2013 When it comes to a room with a view, one several hundred miles above earth is hard to beat. Satellites orbiting the planet and astronauts aboard the International Space Station often take pictures of volcano eruptions, hurricanes and other examples of nature’s fury. And now NASA has rounded up the most spectacular images taken from space all year. The images also include some of the most beautiful sights our planet has to offer – from Princess Charlotte Bay, in Australia, to the surprising beauty of Reno, Nevada’s city lights set against the mountains that surround it. A picture was captured just weeks ago of a new island forming in the Pacific. The past year provided some amazing images, the ones below are from a NASA collection made public. Terrifying beauty: Supertyphoon Haiyan the day before it made landfall in the Philippines.
BUG-A-SALT: The Original Salt Gun A miniaturized shotgun effect is generated through this ingenious design. Ordinary table salt is utilized as a lethal projectile with accuracy range of within 3 feet. Bugs will remain whole for easy clean up. Insect hunting as sport has entered the 21st century with this fun, new non-toxic device. Lift LOADER CAP and pour in ordinary granulated table salt (Holds about 50 shots). Non-ToxicNo batteriesExtremely inexpensive to useExcellent for flies on windowsExcellent for bugs on ceilings and in cornersFun—Say goodbye to insect intruders
Ray Kurzweil: This is your future Ray Kurzweil says health and medicine is an information technology and is therefore subject to the "law of accelerating returns" which implies a doubling of capability each year. Kurzweil believes solar energy could satisfy 100% our power needs. Kurzweil sees the early 2020s as a "golden era" of 3D printing. Google is creating a system that will read every document on the web and every book for meaning. Kurzweil says this will provide a rich search and question answering experience based on the true meaning of natural language. Humans will be able to augment real reality so it appears someone is present, even if that person is hundreds of miles away, Kurzweil says. The future of humanity Editor's note: Ray Kurzweil is one of the world's leading inventors, thinkers, and futurists, with a 30-year track record of accurate predictions. (CNN) -- By the early 2020s, we will have the means to program our biology away from disease and aging. Ray Kurzweil Read more: Le Web, the next ten years
I want to dip everything in this magic hydrocoating water paint From what I gather it's pretty similar to an art project you did. Even put paint in water then dip paper in it to make a fun pattern? That's all that's happening. Decal on-the-fly - (really) thin image floated on liquid, "glue" sprayed on, done. It's basically paint on a dissolvable substrate.