MK Technology and science

An induction motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding.[1] An induction motor can therefore be made without electrical connections to the rotor.[a] An induction motor's rotor can be either wound type or squirrel-cage type. Three-phase squirrel-cage induction motors are widely used as industrial drives because they are rugged, reliable and economical. Single-phase induction motors are used extensively for smaller loads, such as household appliances like fans. Although traditionally used in fixed-speed service, induction motors are increasingly being used with variable-frequency drives (VFDs) in variable-speed service. VFDs offer especially important energy savings opportunities for existing and prospective induction motors in variable-torque centrifugal fan, pump and compressor load applications. Squirrel cage induction motors are very wid...

The technological and industrial history of the United States describes the United States' emergence as one of the most technologically advanced nations in the world. The availability of land and literate labor, the absence of a landed aristocracy, the prestige of entrepreneurship, the diversity of climate and a large easily accessed upscale and literate free market all contributed to America's rapid industrialisation. The availability of capital, development by the free market of navigable rivers, and coastal waterways, and the abundance of natural resources facilitated the cheap extraction of energy all contributed to America's rapid industrialization. Fast transport by the very large railroad built in the mid-19th century, and the Interstate Highway System built in the late 20th century, enlarged the markets and reducing shipping and production costs. The legal system facilitated business operations and guaranteed contracts. Cut off from Europe by the embargo and the Br...

Google Inc. is an American multinational technology company that specializes in Internet-related services and products. These include online advertising technologies, search, cloud computing, software, and hardware. Google was founded in 1998 by Larry Page and Sergey Brin while they were Ph.D. students at Stanford University, in California. Together, they own about 14 percent of its shares, and control 56 percent of the stockholder voting power through supervoting stock. They incorporated Google as a privately held company on September 4, 1998. An initial public offering (IPO) took place on August 19, 2004, and Google moved to its new headquarters in Mountain View, California, nicknamed the Googleplex. In August 2015, Google announced plans to reorganize its various interests as a conglomerate called Alphabet Inc. Google, Alphabet's leading subsidiary, will continue to be the umbrella company for Alphabet's Internet interests. Upon completion of the restructure, Sundar Pichai ...

The final frontier. And so are the sounds it makes. Yes, yes I know: there are no actual “sounds” in the spectrum of human hearing in the firmament, but we can “hear” what’s out there when the electromagnetic waves of celestial bodies like stars, moons, comets and planets are brought into the range of human hearing – and the results are truly extraordinary. Thanks to Cassini, Voyager and Rosetta, we can encounter the music of the spheres as a physical, sonic phenomenon rather than only as an abstract philosophical concept: and the range of sub-super and hypersonic energies in space is jaw-dropping in its range, its strangeness, and even its flat-out terror. Listen to Saturn, the Sun and Miranda, one of the moons of Uranus in Nasa’s recordings to hear that implacable awesomeness. But first, here are the clicks and calls of comet 67P, recorded by Rosetta as Philae went where few apart from Bruce Willis had been before. I find hearing these sounds simultaneously hypnotic and terri...

From an ice planet that's on fire to a strange planet made of solid diamond, we look at 10 of the strangest planets in the known universe! Don't forget to watch it. 10. J1407 b. 9. HD 106906 b 8. TrEs-2b 7. 55 Cancri E 6. Gliese 436b 5. WASP-12b 4. Gliese 581c 3. GJ 1214b 2. WASP-17b 1. HD 188753.

Nuclear bomb test Between 1945 and 1962, the United States conducted 210 atmospheric nuclear bomb tests. For each of those tests, the government used multiple cameras filming at 2,400 frames per second to document things. Over 700 of the films have been declassified so far, and they’re currently being uploaded to YouTube. The videos are being uploaded by Lawrence Livermore National Laboratory of Livermore, California, which conducted the original nuke tests. Researchers and film experts are going through the roughly 10,000 films that were previously classified and stored around the country in high-security vaults. So far 6,000 have been found, 4,000 have been scanned, and 750 have been declassified. Since the film reels weren’t stored properly, they’re in the process of decomposing and losing their images, so a team is working to digitize and preserve the data so that the footage is preserved for the future. 64 of the nuclear bomb explosion videos can now be found through Li...

4 simple science experiments you can do right now with ballons In this video i goona show you 4 simple science experiments 1.fill ballons with eno and it will explode 2.when ballons touch fire it will explode Fill will water it will never explode 3.pin a balloon it will explode tep balloon it will never 4.crush orange on balloon and see the magic For this you goona need this things 1.candle 2. Some ballons 3 . tape 4. Lighter or match box 5. orange 6. Pin 7.coin 8.eno Etc. Now show your kids Must wear gloves and do at home school or where you whant.

Fantasy promo reel for the DALTON/STANLEY A/SRH-C1 Assault/Sniper Rifle Hybrid Tactical Weapon that I designed, built and animated. Weapon design, modelling and animation by Jamie Martin. Modelled and animated in Maxon Cinema 4D. Edited in Final Cut Pro.

The U.S. military is the world's second largest, after China's People's Liberation Army, and has troops deployed around the globe. From 1776 until September 2012, a total of 40 million people have served in the United States Armed Forces. People's Liberation Army (Chinese Armed Forces) The People's Liberation Army (PLA; simplified Chinese: 中国人民解放军; traditional Chinese: 中國人民解放軍; pinyin: Zhōngguó Rénmín Jiěfàngjūn) is the military of the People's Republic of China (PRC) under the leadership of the CPC. August 1 is celebrated annually as Chinese Workers and Farmers Red Army Day. The PLA consists of four professional service branches: the People's Liberation Army Ground Force, the People's Liberation Army Navy, the People's Liberation Army Air Force and the Second Artillery Corps. The PLA is the world's largest military force, with a strength of approximately 2,285,000 personnel, 0.18% of the country's population. The People's Libera...

 Samsung Galaxy S7 edge..... with excellent features

(images)                                 BLACK HOLE A black hole is a region of spacetime exhibiting such strong gravitational effects that nothing—not even particles and electromagnetic radiation such as light—can escape from inside it.[1] The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.[2][3] The boundary of the region from which no escape is possible is called the event horizon. Although the event horizon has an enormous effect on the fate and circumstances of an object crossing it, no locally detectable features appear to be observed.[4] In many ways a black hole acts like an ideal black body, as it reflects no light.[5][6] Moreover, quantum field theory in curved spacetime predicts that event horizons emit Hawking radiation, with the same spectrum as a black body of a temperature inversely proportional to its mass. This tempera...

A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or from a combination of fission and fusion reactions (thermonuclear bomb). Both bomb types release large quantities of energy from relatively small amounts of matter. The first test of a fission ("atomic") bomb released an amount of energy approximately equal to 20,000 tons of TNT (84 TJ). The first thermonuclear ("hydrogen") bomb test released energy approximately equal to 10 million tons of TNT (42 PJ).[1] A thermonuclear weapon weighing little more than 2,400 pounds (1,100 kg) can release energy equal to more than 1.2 million tons of TNT (5.0 PJ).[2] A nuclear device no larger than traditional bombs can devastate an entire city by blast, fire, and radiation. Since they are weapons of mass destruction, the proliferation of nuclear weapons is a focus of international relations policy. Nuclear weapons have been used twice in war, both ...

Jawaharlal Nehru, the first Prime Minister of India (office: 15 August 1947 – 27 May 1964), initiated reforms to promote higher education, science, and technology in India.[2] The Indian Institutes of Technology – conceived by a 22-member committee of scholars and entrepreneurs in order to promote technical education – was inaugurated on 18 August 1951 at Kharagpur in West Bengal by the minister of education Maulana Abul Kalam Azad.[3] More IITs were soon opened in Bombay, Madras, Kanpur and Delhi as well in the late 1950s and early 1960s. Beginning in the 1960s, close ties with the Soviet Union enabled the Indian Space Research Organisation to rapidly develop the Indian space program and advance nuclear power in India even after the first nuclear test explosion by India on 18 May 1974 at Pokhran. India accounts for about 10% of all expenditure on research and development in Asia and the number of scientific publications grew by 45% over the five years to 2007[citation needed]. Howe...

A star is a luminous sphere of plasma held together by its own gravity. The nearest star to Earth is the Sun. Many other stars are visible to the naked eye from Earth during the night, appearing as a multitude of fixed luminous points in the sky due to their immense distance from Earth. Historically, the most prominent stars were grouped into constellations and asterisms, the brightest of which gained proper names. Astronomers have assembled star catalogues that identify the known stars and provide standardized stellar designations. However, most of the stars in the Universe, including all stars outside our galaxy, the Milky Way, are invisible to the naked eye from Earth. Indeed, most are invisible from Earth even through the most powerful telescopes. For at least a portion of its life, a star shines due to thermonuclear fusion of hydrogen into helium in its core, releasing energy that traverses the star's interior and then radiates into outer space. Almost all naturally occurri...

The Sun is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma,[14][15] with internal convective motion that generates a magnetic field via a dynamo process.[16] It is by far the most important source of energy for life on Earth. Its diameter is about 1.39 million kilometers, i.e. 109 times that of Earth, and its mass is about 330,000 times that of Earth, accounting for about 99.86% of the total mass of the Solar System.[17] About three quarters of the Sun's mass consists of hydrogen (~73%); the rest is mostly helium (~25%), with much smaller quantities of heavier elements, including oxygen, carbon, neon, and iron.[18] The Sun Sun with sunspots and limb darkening as seen in visible light with solar filter. Observation data Mean distance from Earth 1 au ≈ 1.496×108 km 8 min 19 s at light speed Visual brightness (V) −26.74[1] Absolute magnitude 4.83[1] Spectral classification G2V[2] Metallicity Z = 0.0122[3] Angular size 31.6–32...