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Timeline of black holephysics

• 1916 S Mercury Dime Worth
• 1916 Dime Worth

Pre-20th century[edit]

Mercury Dime Price Guide Last Update: 02-06 07:11 AM EST Silver $26.96 ( +0.60 ) as of 02-05 04:59 PM EST. USA Coin Book Estimated Value of 1916 Barber Dime is Worth $4.73 in Average Condition and can be Worth $116 to $245 or more in Uncirculated (MS+) Mint Condition. Click here to Learn How to use Coin Price Charts. Also, click here to Learn About Grading Coins. Additional Info: 1916 was the 1st year that the Mercury (actually named the Winged Liberty) dimes were minted. These beautiful dimes are 90% silver. If a mint mark was placed it would be on the reverse, near the word 'one' but you wont find one on this coin as it was minted in Philadelphia. Fully struck versions of this coin worth more. The Barber Dime is a classic American coin — part of a collection of dimes, quarters, and half dollars designed by Charles Barber, U.S. Mint Chief Engraver from 1879 to 1917. The Barber Dime replaced the Seated Liberty Dime in 1892 and was followed by the Mercury Dime in 1916. Mercury Dime (1916-1945) - Coins for sale on Collectors Corner, The Collectibles Marketplace, where you can buy safely from the world's top Coins dealers.

• 1640 — Ismaël Bullialdus suggests an inverse-square gravitational force law
• 1676 — Ole Rømer demonstrates that light has a finite speed
• 1684 — Isaac Newton writes down his inverse-square law of universal gravitation
• 1758 — Rudjer Josip Boscovich develops his theory of forces, where gravity can be repulsive on small distances. So according to him strange classical bodies, such as white holes, can exist, which won't allow other bodies to reach their surfaces
• 1784 — John Michell discusses classical bodies which have escape velocities greater than the speed of light
• 1795 — Pierre Laplace discusses classical bodies which have escape velocities greater than the speed of light
• 1798 — Henry Cavendish measures the gravitational constantG
• 1876 — William Kingdon Clifford suggests that the motion of matter may be due to changes in the geometry of space

20th century[edit]

• 1909 — Albert Einstein, together with Marcel Grossmann, starts to develop a theory which would bind metric tensorg_ik, which defines a spacegeometry, with a source of gravity, that is with mass
• 1910 — Hans Reissner and Gunnar Nordström defines Reissner–Nordström singularity, Hermann Weyl solves special case for a point-body source
• 1915 — Albert Einstein presents (David Hilbert has presented this independently five days earlier in Göttingen) the complete Einstein field equations at the Prussian Academy meeting in Berlin on 25 November 1915^[1]
• 1916 — Karl Schwarzschild solves the Einstein vacuumfield equations for uncharged spherically-symmetric non-rotating systems
• 1917 — Paul Ehrenfest gives conditional principle a three-dimensional space
• 1918 — Hans Reissner and Gunnar Nordström solve the Einstein–Maxwell field equations for charged spherically-symmetric non-rotating systems
• 1918 — Friedrich Kottler gets Schwarzschild solution without Einstein vacuum field equations
• 1923 — George David Birkhoff proves that the Schwarzschild spacetime geometry is the unique spherically symmetric solution of the Einstein vacuum field equations
• 1931 — Subrahmanyan Chandrasekhar calculates, using special relativity, that a non-rotating body of electron-degenerate matter above a certain limiting mass (at 1.4 solar masses) has no stable solutions
• 1939 — Robert Oppenheimer and Hartland Snyder calculate the gravitational collapse of a pressure-free homogeneous fluid sphere into a black hole
• 1958 — David Finkelstein theorises that the Schwarzschild radius is a causality barrier: an event horizon of a black hole
• 1963 — Roy Kerr solves the Einstein vacuum field equations for uncharged symmetric rotating systems, deriving the Kerr metric for a rotating black hole
• 1963 — Maarten Schmidt discovers and analyzes the first quasar, 3C 273, as a highly red-shifted active galactic nucleus, a billion light years away
• 1964 — Roger Penrose proves that an imploding star will necessarily produce a singularity once it has formed an event horizon
• 1964 — Yakov Zel’dovich and independently Edwin Salpeter propose that accretion discs around supermassive black holes are responsible for the huge amounts of energy radiated by quasars^[1]
• 1964 — Hong-Yee Chiu coins the word quasar for a 'quasi-stellar radio source' in his article in Physics Today
• 1964 — The first recorded use of the term 'black hole', by journalist Ann Ewing
• 1965 — Ezra T. Newman, E. Couch, K. Chinnapared, A. Exton, A. Prakash, and Robert Torrence solve the Einstein–Maxwell field equations for charged rotating systems
• 1966 — Yakov Zel’dovich and Igor Novikov propose searching for black hole candidates among binary systems in which one star is optically bright and X-ray dark and the other optically dark but X-ray bright (the black hole candidate)^[1]
• 1967 — Jocelyn Bell discovers and analyzes the first radio pulsar, direct evidence for a neutron star^[2]
• 1967 — Werner Israel presents the proof of the no-hair theorem at King's College London
• 1967 — John Wheeler introduces the term 'black hole' in his lecture to the American Association for the Advancement of Science^[1]
• 1968 — Brandon Carter uses Hamilton–Jacobi theory to derive first-order equations of motion for a charged particle moving in the external fields of a Kerr–Newman black hole
• 1969 — Roger Penrose discusses the Penrose process for the extraction of the spinenergy from a Kerr black hole
• 1969 — Roger Penrose proposes the cosmic censorship hypothesis
• 1972 — Identification of Cygnus X-1/HDE 226868 from dynamic observations as the first binary with a stellar black hole candidate
• 1972 — Stephen Hawking proves that the area of a classical black hole's event horizon cannot decrease
• 1972 — James Bardeen, Brandon Carter, and Stephen Hawking propose four laws of black hole mechanics in analogy with the laws of thermodynamics
• 1972 — Jacob Bekenstein suggests that black holes have an entropyproportional to their surface area due to information loss effects
• 1974 — Stephen Hawking applies quantum field theory to black hole spacetimes and shows that black holes will radiate particles with a black-body spectrum which can cause black hole evaporation
• 1975 — James Bardeen and Jacobus Petterson show that the swirl of spacetime around a spinning black hole can act as a gyroscope stabilizing the orientation of the accretion disc and jets^[1]
• 1989 — Identification of microquasarV404 Cygni as a binary black hole candidate system
• 1994 — Charles Townes and colleagues observe ionized neon gas swirling around the center of our Galaxy at such high velocities that a possible black hole mass at the very center must be approximately equal to that of 3 million suns^[3]

21st century[edit]

• 2002 — Astronomers at the Max Planck Institute for Extraterrestrial Physics present evidence for the hypothesis that Sagittarius A* is a supermassive black hole at the center of the Milky Way galaxy
• 2002 — NASA's Chandra X-ray Observatory identifies double galactic black holes system in merging galaxiesNGC 6240
• 2004 — Further observations by a team from UCLA present even stronger evidence supporting Sagittarius A* as a black hole
• 2006 — The Event Horizon Telescope begins capturing data
• 2012 — First visual evidence of black-holes: Suvi Gezari's team in Johns Hopkins University, using the Hawaiian telescope Pan-STARRS 1, publish images of a supermassive black hole 2.7 million light-years away swallowing a red giant^[4]
• 2015 — LIGO Scientific Collaboration detects the distinctive gravitational waveforms from a binary black hole merging into a final black hole, yielding the basic parameters (e.g., distance, mass, and spin) of the three spinning black holes involved
• 2019 — Event Horizon Telescope collaboration released the first direct photo of a black hole, the supermassive M87* at the core of the Messier 87 galaxy

References[edit]

1. ^ ^abcdeThorne, Kip S. (1994). Black holes and time warps : Einstein's outrageous legacy. New York. ISBN0393035050. OCLC28147932.
2. ^Ferrarese, Laura; Ford, Holland (February 2005). 'Supermassive Black Holes in Galactic Nuclei: Past, Present and Future Research'. Space Science Reviews. 116 (3–4): 523–624. arXiv:astro-ph/0411247. Bibcode:2005SSRv..116..523F. doi:10.1007/s11214-005-3947-6. S2CID119091861. it is fair to say that the single most influential event contributing to the acceptance of black holes was the 1967 discovery of pulsars by graduate student Jocelyn Bell. The clear evidence of the existence of neutron stars – which had been viewed with much skepticism until then – combined with the presence of a critical mass above which stability cannot be achieved, made the existence of stellar-mass black holes inescapable.
3. ^Genzel, R; Hollenbach, D; Townes, C H (1994-05-01). 'The nucleus of our Galaxy'. Reports on Progress in Physics. 57 (5): 417–479. Bibcode:1994RPPh...57..417G. doi:10.1088/0034-4885/57/5/001. ISSN0034-4885.
4. ^[1] Scientific American – Big Gulp: Flaring Galaxy Marks the Messy Demise of a Star in a Supermassive Black Hole

See also[edit]

CoinTrackers.com has estimated the 1916 D Mercury Dime value at an average of $949, one in certified mint state (MS+) could be worth $41,000. (see details)...

Type:Mercury Dime
Year:1916
Mint Mark: D
Face Value: 0.10 USD
Total Produced: 264,000 [?]
Silver Content: 90%
Silver Weight: .0723 oz.
Silver Melt: $1.97
Value: As a rough estimate of this coins value you can assume this coin in average condition will be valued at somewhere around $949, while one in certified mint state (MS+) condition could bring as much as $41,000 at auction. This price does not reference any standard coin grading scale. So when we say average, we mean in a similar condition to other coins issued in 1916, and mint state meaning it is certified MS+ by one of the top coin grading companies. [?].

Additional Info: These are the MOST VALUABLE mercury dimes ever minted! Some have been sold for 43,000 dollars. The 1916 (d) Denver Mercury dime was minted in seriously limited conditions! Just 264 thousand. If you happen to find one in a drawer or garage sale, grab that coin and head for the hills, you have just hit the jack pot. :) In addition you could always be generous and contact us, we would be more than happy to buy it for the silver spot, or face value :) This coin with Full Bands is worth even more.

Numismatic vs Intrinsic Value:This coin in poor condition is still worth $947.03 more than the intrinsic value from silver content of $1.97, this coin is thus more valuable to a collector than to a silver bug. Coins worth more to a collectors may be a better long term investment. If the metal prices drop you will still have a coin that a numismatic would want to buy.

Want more info? Then read Coin Collecting Investment an article that details the benifits of coin collecting as a way to build wealth. Also learn how to properly store your coins.

Current silver melt value* for a 1916 D is $1.97 and this price is based off the current silver spot price of $27.22 This value is dynamic so bookmark it and comeback for an up to the minute silver melt value.

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**When we say that 264,000, of these coins were produced or minted in 1916 this number doesn't always match the actual circulation count for this coin. The numbers come from the United States mint, and they don't reflect coins that have been melted, destroyed, or those that have never been released. Please keep that in mind.

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***Price subject to standard supply and demand laws, dealer premiums, and other market variations. Prices represent past values fetched at online auctions, estate sales, certified coins being sold by dealers, and user submitted values. While we wholeheartedly try to give honest price estimates there are many factors besides appearance, metal content, and rarity that help make up the coins overall value.Call or visit your local coin dealer for more information.

1916 S Mercury Dime Worth

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1916 Dime Worth

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