Nikola Tesla Nikola Tesla (Serbian Cyrillic: Никола Тесла; 10 July 1856 – 7 January 1943) was a Serbian-American inventor, electrical engineer, mechanical engineer, physicist, and futurist who is best known for his contributions to the design of the modern alternating current (AC) electricity supply system. Born and raised in the Austrian Empire, Tesla received an advanced education in engineering and physics in the 1870s and gained practical experience in the early 1880s working in telephony and at Continental Edison in the new electric power industry. He emigrated to the United States in 1884, where he would become a naturalized citizen. He worked for a short time at the Edison Machine Works in New York City before he struck out on his own. Attempting to develop inventions he could patent and market, Tesla conducted a range of experiments with mechanical oscillators/generators, electrical discharge tubes, and early X-ray imaging. Early years Tesla's baptismal record, 28 June 1856 Tesla coil
Thirst . Film Description Population growth, pollution, and scarcity are turning water into "blue gold," the oil of the 21st century. Global corporations are rushing to gain control of this dwindling natural resource, producing intense conflict in the US and worldwide where people are dying in battles over control of water. As revealed in Thirst, the world is poised on the brink of epochal changes in how water is stored, used, and valued. Will these changes provide clean water to the billions of people who need it? Or save the child who dies every eight seconds from contaminated water? A young girl carrying a jug of water in Rajasthan, India. In many ways, the Bolivian city of Cochabamba, India's Rajasthan state, and Stockton, California, occupy very different rungs of the global economic ladder. Without narration, Thirst dramatically reveals this growing storm through charismatic characters, tense confrontations, and cinema vérité footage. "Water is essential to life," Kaufman says.
The Coconut Revolution This is the modern-day story of a native peoples remarkable victory over Western Colonial power. A Pacific island rose up in arms against giant mining corporation Rio Tinto Zinc (RTZ) - and won despite a military occupation and blockade. When RTZ decided to step up production at the Panguna Mine on the island of Bougainville, they got more than they bargained for. The islands people had enough of seeing their environment ruined and being treated as pawns by RTZ. The Papua New Guinea Army (PNGDF) were mobilised in an attempt to put down the rebellion. What was happening within the blockade was an environmental and spiritual revolution. Watch the full documentary now -
Tesla's Egg of Columbus World's Fair: Columbian Exposition Tesla presentation, 1893 Nikola Tesla, at the 1893 World's Columbian Exposition, demonstrated a device he constructed known as the "Egg of Columbus." It was used to demonstrate and explain the principles of the rotating magnetic field model and the induction motor. Tesla's Egg of Columbus performed the feat of Columbus with a copper egg in a rotating magnetic field. Tesla's device used a toroidal iron core stator on which four electromagnetic coils were wound. References External links What Did Nikola Tesla Invent?
/money-banking/ Thomas Jefferson and Andrew Jackson understood The Monster. But to most Americans today, Federal Reserve is just a name on the dollar bill. They have no idea of what the central bank does to the economy, or to their own economic lives; of how and why it was founded and operates; or of the sound money and banking that could end the statism, inflation, and business cycles that the Fed generates. Dedicated to Murray N. Alan Greenspan is not, we're told, happy about this 42-minute blockbuster. Watch the full documentary now War of Currents In the War of Currents era (sometimes, War of the Currents or Battle of Currents) in the late 1880s, George Westinghouse and Thomas Edison became adversaries due to Edison's promotion of direct current (DC) for electric power distribution over alternating current (AC). Thomas Edison, American inventor and businessman, known as "The Wizard of Menlo Park", pushed for the development of a DC power network. George Westinghouse, American entrepreneur and engineer, financially backed the development of a practical AC power network. Edison's direct-current system generated and distributed electric power at the same voltage as used by the customer's lamps and motors. This meant that the current in transmission was relatively large, and so heavy conductors were required and transmission distances were limited, to about a mile (kilometre); otherwise transmission losses would make the system uneconomical. At the time, no method was practical for changing voltages of DC power. DC AC
The Secret Life of Plants It means even on the lower levels of life, there is a profound consciousness or awareness that bonds all things together. Published in 1973, The Secret Life of Plants was written by Peter Tompkins and Christopher Bird. It is described as "A fascinating account of the physical, emotional, and spiritual relations between plants and man." Essentially, the subject of the book is the idea that plants may be sentient, despite their lack of a nervous system and a brain. This sentience is observed primarily through changes in the plant's conductivity, as through a polygraph, as pioneered by Cleve Backster. That said, this book is about much more than just plants; it delves quite deeply into such topics as the aura, psychophysics, orgone, radionics, kirlian photography, magnetism/magnetotropism, bioelectrics, dowsing, and the history of science. Watch the full documentary now
Colombia declares US base share deal unconstitutional (Build 20100722155716) 18 August 2010Last updated at 08:06 A Colombian court has declared as unconstitutional a deal which gives US troops access to its military bases. The constitutional court ruled the 2009 accord should be redrafted as an international treaty and sent to Colombia's Congress for approval. The deal allows the US to use seven bases to help with operations against drug trafficking and terrorism. But it was criticised by other Latin American countries over a concern about the rise in US influence in the region. The US, which has supplied Colombia with more than $7bn (£4.5bn) in aid since 2000, was forced to look for a new centre for regional operations after Ecuador refused to renew the lease on its military base at Manta. The deal agreed by former President Alvaro Uribe in October 2009 gave the US access to the bases for 10 years and would see a maximum of 800 US military personnel and 600 civilian defence contractors based in Colombia.
/on-piracy/ Each day, millions of youths from Canada and around the world download music and movies off of the Internet. This epidemic of unauthorized downloading has been cited by the record and film industries as being the prime cause for billions in losses. Politicians have come under tremendous pressure to pass legislation on the issue. But despite all the media frenzy on the piracy crackdowns, there's been very little attention to the topic itself. At the very best, news reporters regurgitated the contents of an industry press release. There was nothing of substance, which is where this documentary fits in: we wanted to cover the issue in-depth. We interviewed industry execs, copyright lawyers, pirates, consumers, artists, and everyone we could think of - and made you this film. This documentary is available for preview only - .
Tesla coil A Tesla coil is an electrical resonant transformer circuit invented by Nikola Tesla around 1891. It is used to produce high-voltage, low-current, high frequency alternating-current electricity. Tesla coils can produce higher voltages than electrostatic machines, which are another source of artificial high-voltage discharges. Tesla experimented with a number of different configurations consisting of two, or sometimes three, coupled resonant electric circuits. Tesla used these coils to conduct innovative experiments in electrical lighting, phosphorescence, X-ray generation, high frequency alternating current phenomena, electrotherapy, and the transmission of electrical energy without wires. Theory A Tesla coil transformer operates in a significantly different fashion from a conventional (i.e., iron core) transformer. History The later and higher-power coil design has a single-layer primary and secondary. 1902 design