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Bill Tracer

Time Travel: Some Say Impossible, but is it? Part 2 - News - Bubblews - 1 views

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    In part 1 of this series, published here at Bubblews, www.bubblews.com/news/454618-time-travel-some-say-impossible-but-is-it-part-1 we introduced this debate, and discussed how as a consequence of Professor Einstein's Relativity Theory, approaching the speed of light creates the phenomenon of time dilation, which is effectively time travel forward into the future at an accelerated rate. This kind of forward time travel is however theoretically a one way trip, without any opportunity to return from that future to your originating "present time".

    We also dealt with the first, (weakest), of the major arguments used by time travel detractors to justify their unproven stand that time travel into the past is impossible.

    Here in part 2 we will move on to talking about another much stronger issue; the so-called paradox problem, often employed by those who declare backward time travel impossible. At first glance, this argument appears quite sound, but to really examine any subject properly one must do more than just glance at it.
Bill Tracer

Time Travel: Some Say Impossible, but is it? Part 1 - News - Bubblews - 0 views

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    I recently came upon a post exploring the possibility of Time Travel. In that post the writer, ( my friend &tarunandlaxmi ) pointed out that most conventional scientists of our day think backward time travel, or traveling into the past is an impossibility. However, according to Relativity Theory skipping into the future should be quite possible, given the ability to attain great speeds approaching but not quite reaching the speed of light. We aren't that fast yet, but if we should live long enough, and attain sufficient technological advancement, relativistic speeds are within our grasp. When that day comes, the principles of time dilation will make future time travel very possible. However, by that method, it is a one way trip. There would be no way to come back with that particular technological approach. But we are still left with the question; is it possible to travel back to the past, by some other technological method?
yc c

TSUNAGARAI project | National Museum of Emerging Science and Innovation (Miraikan) - 0 views

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    "Geo-Cosmos" is made up of 10,362 OLED panels that display continuously-updating satellite footage of our tiny blue marble, representing what our planet looks like from space in something close to realtime. It replaces an earlier model covered in LED panels, offering museum-goers a full 10 million pixels, a resolution 10 times greater than its predecessor.
yc c

AuthaGraph オーサグラフ 世界地図 - 0 views

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    This projection method transfers a 3-dimentional sphere into a 2-dimensional rectangle while maintaining areas proportions. Using this method, the "AuthaGraph world map" succeeds in transferring an image of the spherical Earth to a flat surface while evenly distributing distortion. An architect, Hajime Narukawa and his collaborators invented it in 1999.
    AuthaGraph world map can be tiled in any directions without visible seams. From this map-tiling, a new world map with triangular, rectangular or parallelogram's outline can be framed out with various regions at its center. This map provides a perspective on decentralized world views. Just as the center of global politics, economy and culture is shifted and decentralized, this map tries to reflect such new global vision in the 21st century.
yc c

UltraViolet - Future of Entertainment - 4 views

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    UltraViolet...Freedom of Entertainment. Nearly 60 leading entertainment and Technology companies from around the world are working together to create a revolutionary new approach to digital entertainment. UltraViolet is being designed so that UltraViolet-enabled content, devices and services can give consumers the freedom to experience movies and TV shows like never before.
yc c

Ride Like the Wind (only faster) - 3 views

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    Rick Cavallaro and John Borton have built a cart that moves 2.86 times the speed of the wind, moving straight downwind. That may seem impossible, but after a year of tinkering and some financial assistance from Google and Joby Energy, they did it. Don't believe me? Check out the video. Keep a weather eye out for the green flag at 0:35. Notice how it's blowing the exact opposite direction of the orange wind socks on the cart? That's because the cart is going faster than the wind.
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    The cart is quite aerodynamic, so it makes a crappy sail, but it's still a sail. The wind gives it a push, and the car starts to roll, however slowly. As it moves along the ground, the wheels turn. At 0 kph the cart has an air speed (relative to the 10 kph wind) of -10 kph. As it gets rolling, it will catch up to the wind in velocity: at 5 kph ground speed, it has a -5 kph relative air speed, and at 10 kph ground speed, it has a relative air speed of 0 kph. At 10 kph ground speed, the cart is just like the balloon, and would not beat the balloon in a race.

    But unlike the balloon, the cart has a 17-foot propeller linked by a complicated drive train to the wheels. And it's the wheels that provide the work to turn the propeller. Remember that: The wheels turn the prop. Not the wind. Not magic pixie dust. The wheels turn the propeller. That's important.

    At 0 kph air speed, the propeller, sections of which have already been pulling on the car, really begins to bite on the air. It pulls the car forward exactly as a propeller pulls an airplane forward. The ground speed of the car increases, turning the wheels faster, which turn the propeller even faster, adding yet more acceleration. And now the whole project seems ridiculous,because everyone knows a perpetual motion machine is impossible.

    But the wind never stops adding power to the system. Come back to the difference between the relative air speed and the ground speed. In the example, the cart reaches a ground speed of 10 kph, and relative air speed of 0 kph. The propeller kicks in and the cart accelerates: Ground speed rises to 20 kph, with relative air speed of 10 kph; then 30 kph ground speed with relative air speed of 20 kph, then it finally reaches a top speed of 28.6 kph, with a relative air speed of 18.6 kph (meaning, going 18.6 kph faster than the wind). There's some loss to friction and to the drive train, but generally the wheels are always doing 10 kph-worth more work then the propeller, because the
Bill Tracer

Thou Shall Not Chip! - 2 views

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    Or, To Chip or Not To Chip - That is The Question. Are GPS chip implants a good idea, or a scary way "the Man" can keep a perpetual eye on where we are in the world? Are they just another way to potentially control the populous, or a beneficial technology for Humankind in general?
yc c

yellowBird | See the world like never before - 360°videos - 0 views

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    Click and drag your mouse in all directions
yc c

Transistor merges man and machine - Innovation - 1 views

  • Man and machine can now be linked more intimately than ever, according to a new article in the journal ACS Nano Letters. Scientists have embedded a nano-sized transistor inside a cell-like membrane and powered it using the cell's own fuel.
  • The research could lead to new types of human-machine interactions where embedded devices could relay information about the inner workings of disease-related proteins inside the cell membrane, and eventually lead to new ways to read, and even influence, brain or nerve cells.
yc c

2020 Shaping Ideas - Sony Ecrisson - 2 views

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    Life in 2020 reflects Ericsson's view of what the world of communications might look like in the future. We hereby invite you to life in 2020.
yc c

nsf.gov - Nanoscience - Discoveries - US National Science Foundation (NSF) - 2 views

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    Read here about the Internet, microbursts, Web browsers, extrasolar planets, and more... a panoply of discoveries and innovations that began with NSF support.
yc c

Robonaut - 2 views

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    NASA and General Motors are working together to accelerate development of the next generation of robots and related technologies for use in the automotive and aerospace industries.
yc c

NANOPOOL - 4 views

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    "SiO2- ultra thin layering" is the technical term for Liquid Glass. Apart from a select group of professionals, few people in the UK know about this stunning technology. If you walk around Ataturk's Mausoleum in Ankara you are walking on it; if you visit certain hospitals in the UK you are touching it. If you see an unusually clean train you are probably looking at it, and if you wonder how your white settee looks so clean, you may be sitting on it. All of these surfaces have been coated with invisible glass.
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