Monday 26 September 2016

Do You Know Philadelphia Experiment.....?


Popularized by the 1984 film, a bizarre low-budget sequel, and a 2012 Syfy channel movie, tales of the Philadelphia Experiment involves covert U.S. Navy operations that led to time travel, teleportation, and mangled flesh. According to urban legends, two separate and completely different Philadelphia Experiments took place. Both, however, involved the same vessel, the USS Eldridge. What happened in each of these alleged experiments, and what evidence is there to support the rumors?

Electromagnetic Waves Subjected on Ship
Two separate sets of bizarre events make up the "Philadelphia Experiment." Both revolve around a Navy Destroyer escort, the USS Eldridge, with the events taking place on two separate days in the summer and fall of 1943. In the first experiment, an alleged method of electrical field manipulation allowed the USS Eldridge to be rendered invisible on July 22, 1943 in the Philadelphia Naval Shipyard. The second rumored experiment was the teleportation and small-scale time travel (with the ship sent a few seconds in the past) of the USS Eldridge from the Philadelphia Naval Shipyard to Norfolk, Virginia, on October 28, 1943.
Horrible tales of mangled seamen and sailors stuck within the metal of the USS Eldridge often accompany this experiment, with the USS Eldrige reappearing seconds later in the waters around Philadelphia. Recitation of the events surrounding the second Philadelphia Experiment often include a cargo and troop transport vessel, the SS Andrew Furuseth. The lore of the second experiment claims those on board the Andew Furuseth viewed the USS Eldridge and it's crew as they teleported into Norforlk momentarily before the ship returned to the waters of Philadelphia. Prior to the mid-1950s, no rumors of bizarre activity surrounded any teleportation or invisibility experiments in North America during the 1940s, let alone in the area surrounding Philadelphia. Carl Meredith Allen, using the alias Carlos Miguel Allende, sent a series of letters to astronomer and writer Morris K. Jessup. Jessup authored several early UFO books including the mildly successful The Case For The UFO. Allen claimed to be on the SS Andrew Furuseth during the second experiment, witnessing the USS Eldridge emerge in the waters of Norfolk and quickly disappear into thin air. Carl Allen supplied no proof to verify what he claimed to witness on October 28, 1943. He did win the mind of Morris Jessup, who began to champion Allen's view of the Philadelphia Experiment. Jessup, however, died four years after his first contact with Allen from an apparent suicide.Moving a ship weighing several thousands tons leaves an inevitable paper trail. On the date of the Philadelphia "Invisibility" Experiment, July 22, 1943, theUSS Eldridge had yet to be commissioned. The USS Eldridge spent the day of the alleged teleportation experiments, October 28, 1943, safely within a New York harbor, waiting to escort a naval convoy to Casablanca. The SS Andrew Norfolkspent October 28, 1943, sailing across the Atlantic Ocean en route to the Mediterranean port city of Oran, further discrediting Carl Allen's comments.
In these experiments, researchers ran an electric current through hundreds of meters of electrical cable around the hull of a ship to see if they could make the ships "invisible" to underwater and surface mines. Germany deployed magnetic mines in naval theatres — mines that would latch on to the metal hull of ships as they came near. In theory, this system would make the ships invisible to the magnetic properties of the mines.
Sixty years later, we are left without a shred of credible evidence for the Philadelphia Experiment(s), yet rumors persist. If you are still unconvinced, think of the situation from a different viewpoint. No incident, regardless of the horrific nature, would stall development of teleportation technology if the military believed it feasible. Such a resource would be an invaluable front line weapon in war and the backbone of many commercial industries, yet decades later, teleportation is still caged within the realm of science fiction.
In 1951, the United States transferred the Eldrige to the country of Greece. Greece christened the ship the HS Leon, using the vessel for joint U.S. operations during the Cold War. The USS Eldridge met an unceremonious end, with the decommissioned ship sold to a Grecian firm as scrap after five decades of service.
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Sunday 25 September 2016

OLED

An organic light-emitting diode (OLED) is a light-emitting diode (LED) in which the emissive electroluminescent layer is a film of organic compound that emits light in response to an electric current. This layer of organic semiconductor is situated between two electrodes; typically, at least one of these electrodes is transparent. OLEDs are used to create digital displays in devices such as television screens,computer monitors, portable systems such as mobile phoneshandheld game consoles and PDAs. A major area of research is the development of white OLED devices for use in solid-state lighting applications.
OLED
There are two main families of OLED: those based on small molecules and those employing polymers. Adding mobile ions to an OLED creates a light-emitting electrochemical cell (LEC) which has a slightly different mode of operation. OLED displays can use either passive-matrix (PMOLED) or active-matrix (AMOLED) addressing schemes. Active-matrix OLEDs (AMOLED) require a thin-film transistorbackplane to switch each individual pixel on or off, but allow for higher resolution and larger display sizes. An OLED display works without a backlight; thus, it can display deep black levels and can be thinner and lighter than a liquid crystal display (LCD). In low ambient light conditions (such as a dark room), an OLED screen can achieve a higher contrast ratio than an LCD, regardless of whether the LCD uses cold cathode fluorescent lamps or an LED backlight.
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Friday 24 July 2015

A world of wireless power


If you buy a 2016 Toyota Prius, you won’t need to worry about keeping your hybrid car charged — just get the option for wireless power transfer that lets you drive into your garage and have your battery automatically topped up from a pad on the floor.
A year or two from now you’ll also be able to purchase laptops, tablets, mobile phones and other consumer electronic devices that don’t need any wires, because their power needs will be met by wireless transmission.
“Instead of having a different charging cord for every device you own, you can have one location where you put your mobile phone or your laptop, and it will stay charged automatically,” says Morris Kesler, chief technology officer at WiTricity of Watertown, Mass. “There’s no reason that these devices need a cord anymore.”
WiTricity, an MIT spinoff, offers highly resonant wireless power transfer technology that “is applicable in any situation where a device has a cord or a battery that needs to be charged,” Kesler says.

An idea that resonated
In magnetic induction, an alternating magnetic field is generated in a transmitter coil and then converted into electrical current in a receiver coil. Wireless power systems that exploit this technique have been around for decades, with cordless toothbrushes offering one example. But traditional wireless power systems based on magnetic induction come with severe operational limitations, especially in transfer distance and positioning.
In 2006, MIT physics professor Marin Soljačić and his colleagues demonstrated a highly resonant form of magnetic induction that can carry wireless power efficiently over larger distances — the breakthrough being commercialized by WiTricity.
“The use of resonance enables efficient use of energy transfer over greater distances and with greater positional freedom than you get with a traditional inductive system,” says Kesler. “For example, your cordless toothbrush only works when the toothbrush is in the holder. Resonance technology lets you move that receiver farther apart and still transfer energy efficiently, and the orientation of the device is less critical than it is in a traditional system. You also can transfer energy from one source to more than one device, the source and the devices don’t have to be the same size, and you can charge through materials like tables.”
Most importantly, “the technology allows you to charge things without even thinking about it,” he emphasizes. “You put your device on a table or a workspace, and it charges as you go.”
Like other magnetic inductive power transmissions, the WiTricity technology interacts only very weakly with the human body, Kesler adds. From a safety perspective, it satisfies the same regulatory limits as common household electronics and appliances.
As the holder of the foundational patents, WiTricity is helping to drive standardization efforts around wireless power transfer over distance using magnetic resonance, including those for automobiles run by the Society of Automotive Engineers and those for consumer electronics pursued by the Alliance for Wireless Power, whose Rezence™ specification incorporates WiTricity technology.
Powering up under difficult conditions
In addition to offering compelling increases in convenience for cars and consumer electronics, the WiTricity technology will provide dramatic enhancements in applications where power is difficult to deliver.
In one example, WiTricity licensee Thoratec is leveraging the improved wireless power transfer to develop better heart-assist pumps. Today, such pumps are typically powered by implanted wires that exit the body. Wireless power transfer offers the potential to improve quality of life for patients, giving them greater freedom of movement, and removing the wires that are uncomfortable and likely to trigger infections. Medical devices implanted several centimeters below the skin could be charged safely and with high efficiency, Kesler says.
In addition to a host of medical applications, the technology is finding many uses in industrial settings. Wireless power transfer that works over a distance offers important advantages, for instance, in powering equipment that gets wet. “You don’t necessarily want to have a charge port on a device like that,” Kesler points out. “By embedding our technology into that device, you can charge it wirelessly without having to plug it in, which basically offers a safer usage model.”
For example, the remotely-operated undersea vehicles employed in offshore petroleum operations must dock very precisely to connect up for charging. “WiTricity technology would allow you to charge them without requiring that precise positioning and without having any electrical components exposed,” Kesler says.
The company also envisions a host of military applications, ranging from powering remotely operated vehicles to rationalizing the collections of batteries carried by foot combatants.

Readying for fast-growing markets
WiTricity’s publicly announced licensees include Intel and Mediatek for consumer electronics and Delphi, IHI, TDK, and Toyota for automotive applications. The total market for wireless power systems of all kinds will reach $8.5 billion in 2018, driven most strongly by adoption in mobile phones and tablet computers, predicts IHS Technology. In this highly competitive market, numerous companies will offer different technologies and system designs. Many products will work by traditional magnetic induction, but those using magnetic resonance technology will need a WiTricity license, Kesler says.
“The market has started to catch up with the technology now, and we are working on standardized licensing agreements to make it easier for our customers to put it into practice,” he says. The firm develops prototypes and reference designs that help licensees get started on their applications, and offers the WiCAD simulation environment, a design tool that allows companies to create specifications for their designs virtually before building expensive prototypes.