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Why the Universe is Flat I The Great Courses

Why the Universe is Flat I The Great Courses

10 Strange Things About The Universe Space The universe can be a very strange place. While groundbreaking ideas such as quantum theory, relativity and even the Earth going around the Sun might be commonly accepted now, science still continues to show that the universe contains things you might find it difficult to believe, and even more difficult to get your head around. Theoretically, the lowest temperature that can be achieved is absolute zero, exactly ? One of the properties of a negative-energy vacuum is that light actually travels faster in it than it does in a normal vacuum, something that may one day allow people to travel faster than the speed of light in a kind of negative-energy vacuum bubble. One prediction of Einstein’s theory of general relativity is that when a large object moves, it drags the space-time around it, causing nearby objects to be pulled along as well. Relativity of Simultaneity Since this extra dimension is so small, only tiny objects, such as particles, can move along it. Antimatter Retrocausality

Scientists twist light to send data: Beams of light can be twisted and combined to transmit data dramatically faster A multi-national team led by USC with researchers hailing from the U.S., China, Pakistan and Israel has developed a system of transmitting data using twisted beams of light at ultra-high speeds -- up to 2.56 terabits per second. To put that in perspective, broadband cable (which you probably used to download this) supports up to about 30 megabits per second. The twisted-light system transmits more than 85,000 times more data per second. Their work might be used to build high-speed satellite communication links, short free-space terrestrial links, or potentially be adapted for use in the fiber optic cables that are used by some Internet service providers. "You're able to do things with light that you can't do with electricity," said Alan Willner, electrical engineering professor at the USC Viterbi School of Engineering and the corresponding author of an article about the research that was published in Nature Photonics on June 24.

If the Moon Were Only 1 Pixel - A tediously accurate map of the solar system Mercury Venus Earth You Are Here Moon Mars Jupiter Io Europa Ganymede Callisto Saturn Titan Uranus Neptune Pluto(we still love you) That was about 10 million km (6,213,710 mi) just now. Pretty empty out here. Here comes our first planet... As it turns out, things are pretty far apart. We’ll be coming up on a new planet soon. Most of space is just space. Halfway home. Destination: Mars! It would take about seven months to travel this distance in a spaceship. Sit back and relax. When are we gonna be there? Seriously. This is where we might at least see some asteroids to wake us up. I spy, with my little eye... something black. If you were on a road trip, driving at 75mi/hr, it would have taken you over 500 years to get here from earth. All these distances are just averages, mind you. If you plan it right, you can actually move relatively quickly between planets. Pretty close to Jupiter now. Sorry. Lots of time to think out here... Pop the champagne! We're always trying to come up with metaphors for big numbers.

Losing the Language of Happiness If you haven’t read Daniel Everertt’s fabulous Don’t Sleep, There are Snakes about his work as a linguist in the Amazon—well, stop whatever you are doing, go directly to Amazon and enjoy. After 30 years living with and studying the Piraha, a tribe living in the Amazonian basin, Everett has concluded that neither Chomsky’s argument—that language is innate to humans and there are universal laws of grammar—and Skinner’s argument—that language is completely learned and genetics account for nothing—are correct. Instead, Everett posits that language and culture are completely intertwined and you cannot study one without the other. Furthermore, and this is where things get really interesting, Everett believes that grammar is significantly less important than culture-based meanings and constraints on talking” are the key. So what’s the big deal? Those 2000 bits are what we call conscious reality. Some of this is straight up anatomy. And right now, this is a critical bit of information.

Animations Animation:Angular diameter distance scaling with curvature and lambda (&OmegaK=1-&Omegam-&Omega&Lambda, fixed &Omegamh2 and &Omegabh2) 110 Year Old Light Bulb Baffles Scientists & zowienews An incandescent light bulb recognized by Guinness World Records as being the longest burning is still glowing strong days after celebrations that marked its 110th anniversary. The Centennial Light Bulb, at Fire Station No. 6 in Livermore, Calif., has been burning bright since it was first installed in 1901. (The exact date appears unknown, though the bulb’s “birthday” is typically held in June, most recently June 18th.) Other than a few power outages, there has only been one break in its operation, when it was removed from one fire station and fitted in another in 1976. The bulb is an improved incandescent lamp, invented by Adolphe A. According to a website dedicated to the bulb, www.centennialbulb.org, Debora Katz, a physicist at the US Naval Academy in Annapolis, Md., has conducted extensive research into the Livermore light bulb’s physical properties, using a vintage light bulb from Shelby Electric Co. that is a near replica of the Livermore light. Like this: Like Loading...

The Scientific Explanation As To Why Matter Is Simply An Illusion Niels Bohr, a Danish Physicist who made significant contributions to understanding atomic structure and quantum theory once said: “if quantum mechanics hasn’t profoundly shocked you, you haven’t understood it yet.” Quantum physics has left scientists all over the world baffled, especially with the discovery that our physical material reality, isn’t really physical at all. “Everything we call real is made of things that cannot be regarded as real.” It seems philosophers of our ancient past were right, our senses really do deceive us. Again, our physical material reality really ISN’T physical at all. Scientific understandings change continuously throughout human history. The notion that the atom was the smallest particle in the universe fell with the discovery that the atom itself is made up of even smaller, subatomic elements. At the turn of the ninetieth century, physicists started to explore the relationship between energy and the structure of matter. What Does This Mean? Sources:

ReadySet Go: How A Simple Solar Power Pack Is Driving Wealth In The Developing World | Gadget Lab The ReadySet power station. Photo: Peter McCollough/Wired Last week, a peculiar little box called ReadySet blew up on Kickstarter. It blasted past its fundraising goal in just a day, but while it’s new here in the States, it’s been juicing phones, laptops and even lightbulbs by the thousands in Africa for more than a year. Encased in plastic, ReadySet is about the size of a shoe box, and it stores 54 watt-hours of power in its field-ready battery pack. On the back side, positive and negative terminals let it connect to just about any power-generation source. For thousands of Africans, it is nothing less than a light in the darkness. San Francisco-based Fenix International, the company behind the ReadySet, had its roots in the One Laptop Per Child (OLPC) project. “When we were working on that $100 laptop, we realized that the way most people in the developing world go online would be to leapfrog [over laptops] with phones and smartphones,” Lin told Wired. Photo: Peter McCollough/Wired

Edad del Universo La edad del Universo, de acuerdo con la Teoría del Big Bang, es el tiempo transcurrido desde el Big Bang hasta el presente. El consenso de los científicos contemporáneos es de unos 13,798 ± 0,037 miles de millones de años,[1] es decir que la edad del universo está comprendida entre 13.761 y 13.835 millones de años. En la ciencia moderna el modelo más prudente (y ampliamente aceptado) de la formación del Universo es el Big Bang. Hay siempre una ambigüedad en la relatividad especial y la relatividad general definiendo de forma precisa que se entiende por tiempo entre dos eventos. ) que aparece en la métrica. Edad basada en los resultados del WMAP[editar] El proyecto WMAP de la NASA estimó la edad del Universo en: (13,7 ± 0,2) × 109 años. Esto es, el Universo tiene unos 13.700 millones de años,[2] con una incertidumbre de 200 millones de años. Edad como función de parámetros cosmológicos[editar] . y . son los más importantes. con la materia total del Universo. donde la función . . .

Urban Physic Garden Adopted by Pembroke Community Garden, a pioneering food growing space located in the grounds of Pembroke House, a community centre in Walworth, Southeast London. Adopted by the wildflower organisation, River of Flowers. Adopted by the Newham Stroke Club, affiliated to the Stroke Association and offers a social opportunity for those affected by stroke. Adopted by Bankside Open Spaces Trust and Permaculture Demonstration Garden, Slade Gardens. Adopted by John Dunne and Pilgrims Way Primary Schools. Adopted by St. Adopted by Jason Lee House Homeless Charity and the DIY Community Allotment is based at Café Gallery Projects at Southwark Park. Adopted by Living Medicine, our resident medical herbalists, and the local community Garden across the street from the site. Adopted by Tabard House Community Garden. 8 Comments

Batteries: The Absolute Definitive Guide Interactive 3D model of Solar System Planets and Night Sky - StumbleUpon

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