![]() ![]() The first black hole ever discovered was Cygnus X-1, located within the Milky Way in the constellation of Cygnus, the Swan. After decades of black holes being known only as theoretical objects. The term "black hole" was coined many years later in 1967 by American astronomer John Wheeler. First black hole discoveredĪlbert Einstein first predicted the existence of black holes in 1916, with his general theory of relativity. It is believed that the interior of black holes could contain a wormhole, the puncture is spacetime, that could offer a portal to another point in spacetime potentially even in a different universe. Wormholes can be thought of as tunnels that connect two separate points in space and time. Over very long timescales, we are speaking about timescales that are much much longer than the age of our universe, the theory states that this trickle of escaping particles will cause the black hole to slowly evaporate. Instead of the particle antiparticle pair existing for a moment and then annihilating each other, one of them can get by gravity and fall into the black hole, while the other particle can fly off into space. When this process occurs near the event horizon of a black hole, strange things can happen. However, they can also recombine and disappear again. When this happens, a particle and its companion anti-particle appear. Quantum theory suggests that there exist virtual particles popping in and out of existence all the time. Hawking predicted that black holes could also radiate away energy and shrink very slowly. Do black holes die?īlack holes do not die per se, but they are theoretically predicted to eventually slowly evaporate over extremely long time scales.īlack holes grow by the accretion of matter nearby that is pulled in by their immense gravity. The first detected black hole was Cygnus-X1. Over time, as other end products of stellar death were detected, namely, neutron stars seen as pulsars it became clear that black holes were real and ought to exist. It was unclear at the time if these corresponded to real objects in the universe. The black hole solution was found was by Karl Schwarzschild in 1915, and these regions - black holes - were found to distort space extremally and generate a puncture in the fabric of spacetime. The theory of general relativity connects the geometry or shape of shape to the detailed distribution of matter. Einstein's equations describe the shape of space around matter. ![]() Who discovered black holes?īlack holes were predicted as an exact mathematical solution to Einstein's equations. This channel circumvents the formation of the traditional star, and is believed to operate in the early universe and produce more massive black hole seeds. Another way that black holes form is from the direct collapse of gas, a process that is expected to result in more massive black holes with a mass ranging from 1000 times the mass of the sun up to even 100,000 times the mass of the sun. Not all stars leave behind black holes, stars with lower birth masses leave behind a neutron star or a white dwarf. The resulting black hole that is left behind is referred to as a stellar mass black hole and its mass is of the order of a few times the mass of the sun. Stars whose birth masses are above roughly 8 to 10 times mass of our sun, when they exhaust all their fuel - their hydrogen - they explode and die leaving behind a very compact dense object, a black hole. According to the first pathway, they are stellar corpses, so they form when massive stars die. How do black holes form?īlack holes are expected to form via two distinct channels. Fruton Professor of Astronomy and Professor of Physics, Yale University. Chair of the Department of Astronomy, Joseph S.
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![]() On Windows, it opens in Windows Media Player. There is no need for third-party software. Simply double-clicking the file opens it. ![]() MP4 files open in the operating system's default video player. Many consider MP4 to be one of the best video formats available today. It is also a popular video format for streaming over the Internet, such as on YouTube. It is compatible with a wide range of devices and operating systems, using a codec to compress file size, resulting in a file that is easy to manage and store. MPEG-4 (MP4) is a container video format that can store multimedia data, usually audio and video. They are Masterpoint green points data, which is obsolete and TeslaCrypt 3.0 ransomware encrypted file, which is malware that demanded ransom in bitcoins, but is thankfully now deactivated and no longer a threat.ĭeveloped by: ISO/ IEC, Moving Pictures Experts Group Keep in mind that two other file types use the MP3 extension. Users can also preview MP3 files.Īnother program that can open MP3 files is VLC media player. Simply clicking on the file will open it in iTunes or Windows Media Player, depending on your preferred platform. Due to small size and acceptable quality, MP3 files are accessible to a wide audience, as well as easy to store and share.īecause MP3 files are so prevalent, most major audio playback programs support them. ![]() MP3 files are the most widely-used audio file for consumers. MPEG-1 Audio Layer III or MPEG-2 Audio Layer III (MP3) is a digital, audio-coding format used to compress a sound sequence into a very small file to enable digital storage and transmission. ![]() Growing numbers of oil and gas companies are gearing to test the liquids-rich Utica Shale below the Marcellus formation in Ohio and Pennsylvania. ![]() Just how significant could Utica activity be for the Buckeye State’s economic recovery? Similar to the local economic booms associated with the Marcellus in Pennsylvania and West Virginia, the Bakken Shale in North Dakota and the Eagle Ford Shale in South Texas, leasing and initial exploration and drilling activity already are generating economic benefits in Ohio, one of the states hit hardest by the recession and chronic high unemployment rates. The epicenter of initial drilling and development activity to test the potential of the Utica is in eastern Ohio and western Pennsylvania. In fact, the Utica has nearly twice as much areal extent as the Marcellus, spanning more than 170,000 square miles (110 million acres) beneath eight states and across the border into Canada. ![]() Energy Information Administration, natural gas production in Pennsylvania and West Virginia now averages almost 4 billion cubic feet a day–more than five times the average daily volumes produced in the first four years of Marcellus activity from 2004 to 2008–and accounts for more than 85 percent of all gas produced in the Northeast United States.īut lurking 2,000 to 7,000 feet beneath the massive Marcellus formation is an even more dominant geologic feature: the Utica Shale, an Ordovician-age formation that is thicker and much more geographically expansive than even the Marcellus. Seven years after Range Resources drilled the discovery well to the play, the Marcellus ranks as the second largest natural gas accumulation on the planet, with up to 500 trillion cubic feet of estimated recoverable reserves.Īccording to the U.S. The Marcellus Shale is a thick “blanket” formation that covers 95,000 square miles (61 million acres) across the Appalachian Basin. |
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