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Jac Londe

Greebo Science - 0 views

  • Planck Units
  • Planck units are largely based upon three fundamental units, h, G, and c.
  • The gravitational constant is given the symbol "G".   It is a measured value used in the force equation for gravity (see below). F = Gm1m2 / r2 The m units are masses of two bodies which are separated by a distance r.   By rearranging the equation, we have G (see below). G = Fr2 / m1m2 The gravitational force, F, was measured between two masses to arrive at G.   At various times, the laboratory equipment and methods were improved to arrive at more accurate values for G.   The physics texts were not usually updated for the new values because (1) the changes were not great enough to justify the added expense to the texts, and (2) the changes were happening frequently enough to make each text obsolete before it arrived in the hands of students.   Consequently, there are numerous variations of G to be found, but the differences between them are slight. There are many systems of weights and measures used in physics.   Fundamental constants such as G often have two values according to the measuring system used.   When two such units are mixed to arrive at subsidiary units such as the planck length, the result is a completely erroneous value along with units of measure which do not apply.   Consequently, it is important to convert the various units of the fundamental constants used to the same system of units.   In may instances of late, this has not been done. Finally, there is human error involved in copying from an old text to create a new next.   This means that it is wise to check various texts to see if they all agree (they usually don't), and decide what is correct and what is not correct.   For G, the following was discovered.
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  • G = 6.670x10-11 newton meter2/kilogram2 From a text created by the Department of Physics at the U.S. Air Force Academy in about 1955, Formulas and Tables. G = 6.673x10-11 newton meter2/kilogram2 From a textbook last copyrighted in 1972, Elements of Physics. G = 6.6742x10-11 meter3/kilogram second2 From a science publication announcing an improved value based upon data from a recent experiment 1994.   Note that the the text mentioned below, probably written prior to 1994, did not include the change. G = 6.67259x10-11 newton meter2/kilogram2 From a textbook last copyrighted in 1997, Fundamentals of Physics Extended.  
  • 1 newton = 1 kilogram of force = 1 kilogram of mass x 1 meter/second2 = 100,000 dynes
  • For h, the following was discovered. h = 6.6252x10-34 joule second   or   4.134x10-15 electron volt second
  • 1 joule = 10,000,000 ergs = .737324 (one book gave .7376) foot pounds = 1 watt second = .1020 kilogram meter
  • The joule is defined as the unit of work or energy equivalent to work done or heat generated in one second by an electric current of one ampere against a resistance of one ohm - or raising the potential of a coulomb by one volt.
  • The erg is defined as the unit of work and of energy, being the work done in moving a body one centimeter against a force of one dyne. 1 erg = one centimeter dyne = 980.7 centimeter grams = 107 joules = 107 watt seconds The electron volt (sometimes called the equivalent volt) is defined as the unit of energy equal to that acquired by an electron passing through a potential of one volt.
  • h = 1.0753x10-35 kilogram meter2/second G = 6.6742x10-11 meter3/kilogram second2 c = 2.9979x108 meters/second
Jac Londe

Sr2IrO4 - 0 views

As it turns out, the new phase that the Hsieh group identified is precisely this type of multipolar order. To detect multipolar order, Hsieh's group utilized an effect called optical harmonic gene...

setoftags physic science ondes

started by Jac Londe on 02 Nov 15 no follow-up yet
Jac Londe

Mind & Brain science news and articles from Scientific American - 0 views

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    The latest news about the human mind, including autism, from Sciam.com
Jac Londe

eScience - Science Tracer Bullet - 0 views

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    eScience. Science Tracer Bullets - Research Guides from the Library of Congress, Science Reference Services.
Jac Londe

Téléchargement de fichiers PDF / Olympus - 0 views

  • Téléchargement de fichiers PDFOur PDF library contains additional information on all Olympus IMS products. To access a brochure or datasheet, select a solution from the left menu and choose from the list presented.
Jac Londe

Electricity FERC - 0 views

  • Regulatory Changes by the Federal Energy Regulatory Commission
  • FERC Orders 888 and 889
  • On April 24, 1996, FERC issued Orders 888 and 889, which encourage wholesale competition.  The primary objective of these orders is the elimination of monopoly power over the transmission of electricity.  To achieve this objective, FERC requires all public utilities that own, control, or operate facilities used for transmitting electric energy in interstate commerce to: file open access nondiscriminatory transmission tariffs containing minimum terms and conditions, take transmission service (including ancillary services) for their own new wholesale sales and purchases of electricity under open access tariffs, develop and maintain a same-time information system that will give existing and potential  users the same access to transmission information that the public utility enjoys, and separate the transmission from generating and marketing functions and communications.
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  • Recovery of stranded costs is perhaps the most contentious issue confronting regulators in promoting competition.  Stranded costs (or assets) are costs that have been prudently incurred by utilities to serve their customers but cannot be recovered if the consumers choose other electricity suppliers. One study has estimated current stranded assets at $88 billion, and estimates of projected stranded costs range from $10 billion to $500 billion. In its Order 888, FERC reaffirmed "that the recovery of legitimate, prudent and verifiable stranded costs should be allowed." FERC's directive is grounded in the belief that the recovery of stranded costs "is critical to the successful transition of the electricity industry to a competitive, open-access environment." For this purpose, direct assignment of costs to departing customers was selected as the appropriate method for recovery of stranded costs.
Jac Londe

EBBG - 0 views

  • "To say we were striving for a one-world government is exaggerated, but not wholly unfair. Those of us in Bilderberg felt we couldn't go on forever fighting one another for nothing and killing people and rendering millions homeless. So we felt that a single community throughout the world would be a good thing."
  • The original conference was held at the Hotel de Bilderberg, near Arnhem in the Netherlands, from 29 to 31 May 1954. It was initiated by several people, including Polish politicians Józef Retinger and Andrew Nielsen, concerned about the growth of anti-Americanism in Western Europe, who proposed an international conference at which leaders from European countries and the United States would be brought together with the aim of promoting Atlanticism – better understanding between the cultures of the United States and Western Europe to foster cooperation on political, economic, and defense issues.[3]
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    Études critiques sur un noyau de commandement.
Jac Londe

Common Ground - Common Sense - 0 views

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    Bridging the political gap from labels to issues.
Jac Londe

chord house ::: chords and scales for guitar and piano - 0 views

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    Quickly get detailed finger settings for all the guitar chords and scales you can imagine, for _any_ tuning, both for right-handed and left-handed players. All clearly displayed in the graphical manner familiar from music books. You can even print out your own selection of guitar chords.
Jac Londe

Water Solar Stills: Clean Drinking Water - 0 views

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    High Frequency Welding HFW from Speed Plastics Ltd of Chesterfield Derbyshire UK supplying solar stills, survival aids, medical and surgical isolation tents
Jac Londe

Journal of Insect Science - 0 views

  • The Journal of Insect Science is an international, open access, peer-reviewed journal publishing papers in all aspects of the biology of insects and other arthropods from the molecular to the ecological, and their agricultural and medical impact. Published online by the University of Wisconsin Libraries,
Jac Londe

Researchers produce first complete computer model of an organism - 0 views

  • Researchers produce first complete computer model of an organism July 20, 2012 By Max McClure
  • (Phys.org) -- In a breakthrough effort for computational biology, the world's first complete computer model of an organism has been completed, Stanford researchers reported in the journal Cell.
  • team led by Stanford bioengineering Professor Markus Covert used data from more than 900 scientific papers to account for every molecular interaction that takes place in the life cycle of Mycoplasma genitalium – the world's smallest free-living bacterium.
Jac Londe

World Military Spending - Global Issues - 0 views

  • Of all the enemies to public liberty war is, perhaps, the most to be dreaded because it comprises and develops the germ of every other. War is the parent of armies; from these proceed debts and taxes … known instruments for bringing the many under the domination of the few.… No nation could preserve its freedom in the midst of continual warfare.— James Madison, Political Observations, 1795
Jac Londe

Scientists suggest spacetime has no time dimension - 0 views

  • Scientists propose that clocks measure the numerical order of material change in space, where space is a fundamental entity; time itself is not a fundamental physical entity.
  • They propose to replace these concepts of time with a view that corresponds more accurately to the physical world: time as a measure of the numerical order of change.
  • No time dimension
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  • “Einstein said, ‘Time has no independent existence apart from the order of events by which we measure it,’”
  • “Newton theory on absolute time is not falsifiable, you cannot prove it or disprove it, you have to believe in it,” Sorli said. “The theory of time as the fourth dimension of space is falsifiable and in our last article we prove there are strong indications that it might be wrong. On the basis of experimental data, time is what we measure with clocks: with clocks we measure the numerical order of material change, i.e., motion in space.”
Jac Londe

Neural signature of mental time travel | ZME Science - 0 views

  • Neural signature of mental time travel
  • memory triggering
  • “By examining the patterns of brain activity recorded from the implanted electrodes,” Manning said, “we can measure when the brain’s activity is similar to a previously recorded pattern. When a patient recalls a word, their brain activity is similar to when they studied the same word. In addition, the patterns at recall contained traces of other words that were studied prior to the recalled word.” “What seems to be happening is that when patients recall a word, they bring back not only the thoughts associated with the word itself but also remnants of thoughts associated with other words they studied nearby in time,” he said.
Jac Londe

Study finds capitalist network of companies runs the world [with list] | ZME Science - 0 views

  • capitalist ne
  • capitalist network of companies runs the world
  • A recent study conducted by researchers from Zurich found that a ‘super entity’ of 147 companies controls 40% of the entire corporate network.
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  • Here’s a list of 50 of those 147 companies. 1. Barclays plc 2. Capital Group Companies Inc 3. FMR Corporation 4. AXA 5. State Street Corporation 6. JP Morgan Chase & Co 7. Legal & General Group plc 8. Vanguard Group Inc 9. UBS AG 10. Merrill Lynch & Co Inc 11. Wellington Management Co LLP 12. Deutsche Bank AG 13. Franklin Resources Inc 14. Credit Suisse Group 15. Walton Enterprises LLC 16. Bank of New York Mellon Corp 17. Natixis 18. Goldman Sachs Group Inc 19. T Rowe Price Group Inc 20. Legg Mason Inc 21. Morgan Stanley 22. Mitsubishi UFJ Financial Group Inc 23. Northern Trust Corporation 24. Société Générale 25. Bank of America Corporation 26. Lloyds TSB Group plc 27. Invesco plc 28. Allianz SE 29. TIAA 30. Old Mutual Public Limited Company 31. Aviva plc 32. Schroders plc 33. Dodge & Cox 34. Lehman Brothers Holdings Inc* 35. Sun Life Financial Inc 36. Standard Life plc 37. CNCE 38. Nomura Holdings Inc 39. The Depository Trust Company 40. Massachusetts Mutual Life Insurance 41. ING Groep NV 42. Brandes Investment Partners LP 43. Unicredito Italiano SPA 44. Deposit Insurance Corporation of Japan 45. Vereniging Aegon 46. BNP Paribas 47. Affiliated Managers Group Inc 48. Resona Holdings Inc 49. Capital Group International Inc 50. China Petrochemical Group Company
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