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Sean Watson

Robert Hooke - Wikipedia, the free encyclopedia - 0 views

  • Jump to: navigation, search Robert Hooke Portrait of Hooke, 2004. Born 18 July 1635Freshwater, Isle of Wight, England Died 3 March 1703 (aged 67)London, England Fields Physics and chemistry Institutions Oxford University Alma mater Christ Church, Oxford Academic advisors Robert Boyle Known for Hooke's LawMicroscopyapplied the word 'cell' Influences Richard Busby Contents [hide] 1 Life and works 1.1 Early life 1.2 Oxford 1.3 The Watch Balance Spring 1.4 Royal Society 2 Personality and disputes 3 Hooke the scientist 3.1 Mechanics 3.2 Gravitation 3.3 Microscopy 3.4 Astronomy 4 Hooke the architect 5 Likenesses 6 Commemorations 7 See also 8 References 9 Further reading 10 External links //
  • Hooke is known for his law of elasticity (Hooke's law), his book, Micrographia, and for first applying the word "cell" to describe the basic unit of life
  • Micrographia
James Wilcox

Airplane Timeline - Greatest Engineering Achievements of the Twentieth Century - 0 views

    • James Wilcox
       
      I love helicopters!  But I never knew that they had been around for so many years.
  • 1947   Sound barrior broken U.S. Air Force pilot Captain Charles "Chuck" Yeager becomes the fastest man alive when he pilots the Bell X-1 faster than sound for the first time on October 14 over the town of Victorville, California.
  • 1952   Discovery of the area rule of aircraft design Richard Whitcomb, an engineer at Langley Memorial Aeronautical Laboratory, discovers and experimentally verifies an aircraft design concept known as the area rule. A revolutionary method of designing aircraft to reduce drag and increase speed without additional power, the area rule is incorporated into the development of almost every American supersonic aircraft. He later invents winglets, which increase the lift-to-drag ratio of transport airplanes and other vehicles.
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  • 1925-1926   Introduction of lightweight, air-cooled radial engines The introduction of a new generation of lightweight, air-cooled radial engines revolutionizes aeronautics, making bigger, faster planes possible.
  •   1917   The Junkers J4, an all-metal airplane, introduced Hugo Junkers, a German professor of mechanics introduces the Junkers J4, an all-metal airplane built largely of a relatively lightweight aluminum alloy called duralumin.
  • 1904   Concept of a fixed "boundary layer" described in paper by Ludwig Prandtl German professor Ludwig Prandtl presents one of the most important papers in the history of aerodynamics, an eight-page document describing the concept of a fixed "boundary layer," the molecular layer of air on the surface of an aircraft wing. Over the next 20 years Prandtl and his graduate students pioneer theoretical aerodynamics.
  • 1933   First modern commercial airliner In February, Boeing introduces the 247, a twin-engine 10-passenger monoplane that is the first modern commercial airliner. With variable-pitch propellers, it has an economical cruising speed and excellent takeoff. Retractable landing gear reduces drag during flight.
  • 935   First practical radar British scientist Sir Robert Watson-Watt patents the first practical radar (for radio detection and ranging) system for meteorological applications. During World War II radar is successfully used in Great Britain to detect incoming aircraft and provide information to intercept bombers.
  • 1937   Jet engines designed Jet engines designed independently by Britain’s Frank Whittle and Germany’s Hans von Ohain make their first test runs. (Seven years earlier, Whittle, a young Royal Air Force officer, filed a patent for a gas turbine engine to power an aircraft, but the Royal Air Ministry was not interested in developing the idea at the time. Meanwhile, German doctoral student Von Ohain was developing his own design.) Two years later, on August 27, the first jet aircraft, the Heinkel HE 178, takes off, powered by von Ohain’s HE S-3 engine.
  •   1939   First practical singlerotor helicopters Russian emigre Igor Sikorsky develops the VS-300 helicopter for the U.S. Army, one of the first practical singlerotor helicopters.
Kristi Koerner

Theories of Religion in Early 20th Century Psychology@Everything2.com - 0 views

  • Freud believed humanity is moving through three stages of development: Tribal, Religious, Scientific.  He believed society would eventually cast off the unnecessary and unfounded ideals of religion in trade for the exactitudes and truth offered by the scientific method.
  • Unlike Sigmund Freud, who believed religion to be an illusory wish fulfillment for the weak minded, Carl Jung advocated religion as an indispensable part of an individual's psychological development. Jung viewed the mind as having three components: the ego, the personal unconscious, and the collective unconscious. Freud's vision of the mind did not include a collective unconscious. Instead, Freud proposed a moral super-ego, which grew to become the mind's administrator according to a learned sense of morality. Jung believed the self-actualizing properties of Freud's super ego pre-exist in the mind as a collective unconscious which is to be discovered through introspection as opposed to learned from experience.
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    Good contrast btw Freud and Jung
Kristen Nicole Cardon

Sigmund Freud Quotes - 0 views

  • The great question that has never been answered, and which I have not yet been able to answer, despite my thirty years of research into the feminine soul, is “What does a woman want?” SIGMUND FREUD, Ernest Jones' Sigmund Freud: Life and Work
  • Religion is an illusion and it derives its strength from the fact that it falls in with our instinctual desires. SIGMUND FREUD, New Introductory Lectures on Psychoanalysis
  • America is the most grandiose experiment the world has seen ... but, I am afraid, it is not going to be a success. SIGMUND FREUD, Ronald W. Clark's Freud: The Man and His Cause
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    Quotes from that crazy one, Sigmund Freud
Ariel Szuch

ScholarSearch - 0 views

  • Open government (View details) Perritt, H Government Information Quarterly, 1997, Vol.14(4), p.397-406 [Peer Reviewed Journal] updating... Full text available (GetIt) Add to e-Shelf
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    Article: "Open Government" by H Perritt
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    This article has a very interesting section on why open government is important to a democratic society.
Brian Earley

Life's Lessons Learned - 0 views

    • Brian Earley
       
      Thoreau put his priorities on understanding himself.  We must make our priorities and work diligently for them.
  • I have known many great men and women.
  • they all have this in common: they work diligently and persistently towards achieving their goals
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  • “If one advances confidently in the direction of his dreams,” wrote Henry David Thoreau, “and endeavors to live the life which he has imagined, he will meet with a success unexpected in common hours.”1     UAdd a Note In other words, never take your eye off the ball.
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    I love this football story, but it emphasizes following simple principles in a complex system.  "Keep your eye on the . . ." We each decide what fills the blank.  Let's see our dreams and advance confidently in that direction.
Margaret Weddle

Atomic Age #1 - Atomic Age (comic book issue) - Comic Vine - 0 views

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    ""Atomic Age #1" is a comic whose story involves the arrival of an alien humanoid on a US Air Force base located on a fictional island in the South Pacific." History, Science, & comic books! fun!!
Andrew DeWitt

LDS.org - Ensign Article - Things as They Really Are - 2 views

shared by Andrew DeWitt on 21 Sep 10 - Cached
Andrew DeWitt liked it
  • I raise an apostolic voice of warning about the potentially stifling, suffocating, suppressing, and constraining impact of some kinds of cyberspace interactions and experiences upon our souls. The concerns I raise are not new; they apply equally to other types of media, such as television, movies, and music. But in a cyber world, these challenges are more pervasive and intense. I plead with you to beware of the sense-dulling and spiritually destructive influence of cyberspace technologies that are used to produce high fidelity and that promote degrading and evil purposes.
  • Brothers and sisters, please understand. I am not suggesting all technology is inherently bad; it is not. Nor am I saying we should not use its many capabilities in appropriate ways to learn, to communicate, to lift and brighten lives, and to build and strengthen the Church; of course we should. But I am raising a warning voice that we should not squander and damage authentic relationships by obsessing over contrived ones.
    • Andrew DeWitt
       
      Watch/Listen to it here http://lds.org/broadcast/ces/0,7341,538-1-61-1681,00.html
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    A great talk--applicable to the focus of our class!
Erin Hamson

Transparent science - 1 views

    • Erin Hamson
       
      Of course they want mess with the data, other wise the fundung companies pulls out from under you...
  • However, whether consciously or subconsciously, the danger is that these data may sometimes be interpreted in a certain, more favourable, light. With private funding of basic research on the increase, potential conflicts of interest are becoming more With private funding of basic research on the increase, potential conflicts of interest are becoming more frequent frequent and scientists may have more than their reputations at stake when making their results public
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    Looks into how much is actually disclosed in scientific studies
Gideon Burton

Nerds 2.0.1 - Wiring the World - 0 views

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    A short history of the Internet and World Wide Web (as of 1998) done through PBS.
Erin Hamson

Free! Why $0.00 Is the Future of Business - 4 views

shared by Erin Hamson on 25 Sep 10 - Cached
Andrew DeWitt liked it
  • zero-cost distribution has turned sharing into an industry
    • Bri Zabriskie
       
      This article is long but well worth skimming. I used a quote from it in one of my latest blogposts, "Free Entertainment?" at bricolorful.wordpress.com
  • Invent something people use and throw away.
    • Erin Hamson
       
      Eliminates scarcity
  • By giving away the razors, which were useless by themselves, he was creating demand for disposable blades.
    • Erin Hamson
       
      Supply and demand
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  • The fastest-growing parts of the gaming industry are ad-supported casual games online and free-to-try massively multiplayer online games
    • Erin Hamson
       
      Still need a way to make money
  • The first is the extension of King Gillette's cross-subsidy to more and more industries.
    • Erin Hamson
       
      That is, giving somethings to make you buy others
  • The second trend is simply that anything that touches digital networks quickly feels the effect of falling costs.
  • And that meant software of broader appeal, which brought in more users, who in turn found even more uses for computers.
    • Erin Hamson
       
      Cheaper goods brings in more people allowing the standard of living to rise for all.
  • FREE CHANGES EVERYTHING
    • Andrew DeWitt
       
      Wow, this is awesome.  Imagine the world of free electricity.  It makes me wonder what our age of free digital will bring.
    • Kristi Koerner
       
      I actually agree that some things, maybe even more things, should be free. But not as a marketing ploy. And this system seems to go against our capitalist ideals of competition.
  • The most common of the economies built around free is the three-party system. Here a third party pays to participate in a market created by a free exchange between the first two parties.
    • Erin Hamson
       
      Where the money comes in.
  • There are dozens of ways that media companies make money around free content, from selling information about consumers to brand licensing, "value-added" subscriptions, and direct ecommerce
  • subscription model of media and is one of the most common Web business models.
  • Isn't it just the free sample model found everywhere from perfume counters to street corners?
  • the manufacturer gives away only a tiny quantity
  • A typical online site follows the 1 Percent Rule — 1 percent of users support all the rest.
  • Yahoo's pay-per-pageview banners, Google's pay-per-click text ads, Amazon's pay-per-transaction "affiliate ads," and site sponsorships were just the start.
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    A seminal post that became the basis of Anderson's 2009 book, FREE (Hyperion) 
Jeffrey Whitlock

A Drop in the Ocean - Introduction to Microfinance Seminars (session 1) by Daan Harmsen on Prezi - 0 views

    • Jeffrey Whitlock
       
      I highly suggest checking out this pretzi on microfinance. It might be a bit hard to understand if you are just becoming acquainted with the subject. I might suggest reading the Wikipedia article on it first.
Katherine Chipman

Hard Times - 0 views

  • Published in weekly parts Apr 1854 - Aug 1854
  • Hard Times -  Published in weekly parts Apr 1854 - Aug 1854
  • Dismissed initially as "sullen socialism", the novel gained new life with F.R. Leavis' positive critical treatment in The Great Tradition (1948). Leavis considered Hard Times Dickens' "masterpiece" and "his only serious work of art". Since then it has been one of Dickens' best-sellers, widely taught in schools
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  • Dismissed initially as "sullen socialism", the novel gained new life with F.R. Leavis ' positive critical treatment in The Great Tradition (1948). Leavis considered Hard Times Dickens' "masterpiece" and "his only serious work of art". Since then it has been one of Dickens' best-sellers, widely taught in schools ,
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    It is interesting that Hard Times was published in parts over a 4 month period.
Kevin Watson

George Washington Quotes - 0 views

  • However [political parties] may now and then answer popular ends, they are likely in the course of time and things, to become potent engines, by which cunning, ambitious, and unprincipled men will be enabled to subvert the power of the people and to usurp for themselves the reins of government, destroying afterwards the very engines which have lifted them to unjust dominion. GEORGE WASHINGTON, Farewell Address, Sep. 17, 1796
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    I love the views of the first President. He truly was inspired.
Gideon Burton

You Arent Blogging Yet?!? - The Scientist - Magazine of the Life Sciences - 1 views

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    Very good article about how important it is for scientists to be blogging -- how much opportunity it opens for them.
Rhett Ferrin

1. The Love Song of J. Alfred Prufrock. Eliot, T.S. 1917. Prufrock and Other Observations - 0 views

shared by Rhett Ferrin on 28 Oct 10 - Cached
    • Rhett Ferrin
       
      Etherised? I didn't know ether could be verbalised.
  • Though I have seen my head [grown slightly bald] brought in upon a platter, I am no prophe
    • Erin Hamson
       
      John the Baptist
  • “I am Lazarus, come from the dead
    • Erin Hamson
       
      Another religious reference
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  • The yellow fog that rubs its back upon the window-panes,        15 The yellow smoke that rubs its muzzle on the window-panes Licked its tongue into the corners of the evening, Lingered upon the pools that stand in drains, Let fall upon its back the soot that falls from chimneys, Slipped by the terrace, made a sudden leap,        20 And seeing that it was a soft October night, Curled once about the house, and fell asleep.
    • Rhett Ferrin
       
      This is my favorite part of the whole poem. Eliot makes the smoke act like a cat. I can almost see it moving...
Gideon Burton

Op-Ed Contributor - How the Internet Got Its Rules - NYTimes.com - 2 views

  • We thought maybe we’d put together a few temporary, informal memos on network protocols, the rules by which computers exchange information
  • Less important than the content of those first documents was that they were available free of charge and anyone could write one. Instead of authority-based decision-making, we relied on a process we called “rough consensus and running code.”
  • Still fearful of sounding presumptuous, I labeled the note a “Request for Comments.”
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  • the R.F.C.’s themselves took root and flourished. They became the formal method of publishing Internet protocol standards
  • Our intent was only to encourage others to chime in, but I worried we might sound as though we were making official decisions or asserting authority.
  • It probably helped that in those days we avoided patents and other restrictions; without any financial incentive to control the protocols, it was much easier to reach agreement.
  • This was the ultimate in openness in technical design and that culture of open processes was essential in enabling the Internet to grow and evolve as spectacularly as it has
  • we always tried to design each new protocol to be both useful in its own right and a building block available to others. We did not think of protocols as finished products, and we deliberately exposed the internal architecture to make it easy for others to gain a foothold.
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    Stephen D. Crocker explains the early planning documents ("Requests for Comments") and how they exemplified and made possible the open nature of the web.
Greg Williams

How Computerized Tutors Are Learning to Teach Humans - NYTimes.com - 0 views

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    The machines are taking over
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