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  • April 21, 2014 12:11 am

    sci-universe:

    Italy’s Mount Etna volcano erupting perfect smoke rings.
    Blaze it.

  • April 21, 2014 12:10 am
    august-mor:

Jane Goodall. National Geographic, 1974.
“You cannot get through a single day without having an impact on the world around you. What you do makes a difference, and you have to decide what kind of difference you want to make.” 
View high resolution

    august-mor:

    Jane GoodallNational Geographic, 1974.

    “You cannot get through a single day without having an impact on the world around you. What you do makes a difference, and you have to decide what kind of difference you want to make.” 

  • April 21, 2014 12:07 am
    gotafli:

Going to School

    gotafli:

    Going to School

    (Source: dovga.com)

  • April 19, 2014 8:33 am
  • April 19, 2014 8:32 am
  • April 17, 2014 11:46 pm
    Study for next piece. #graphite #sketch #wip View high resolution

    Study for next piece. #graphite #sketch #wip

  • April 15, 2014 3:34 am
    #LunarEclipse View high resolution

    #LunarEclipse

  • April 15, 2014 12:45 am

    gotafli:

    Little Dragon - Coachella 2014

  • April 13, 2014 1:00 pm
    leradr:

a—fri—ca:

Thomas Fuller, African slave and mathematician
Thomas Fuller was an African, shipped to America as a slave in 1724. He had remarkable powers of calculation, and late in his life was discovered by antislavery campaigners who used him as a demonstration that blacks are not mentally inferior to whites. The place of his birth appears to have been between present day Liberia and Benin. Known as Negro Tom, we know that he was described as a very black man and also we know that he lived in Virginia after being brought to the United States as a slave. Certainly late in his life he was the property of Elixabeth Coxe of Alexandria. Thomas Fuller, known as the Virginia Calculator, was stolen from his native Africa at the age of fourteen and sold to a planter. When he was about seventy years old, two gentlemen, natives of Pennsylvania, viz., William Hartshorne and Samuel Coates, men of probity and respectable characters, having heard, in travelling through the neighbourhood in which the slave lived, of his extraordinary powers in arithmetic, sent for him and had their curiosity sufficiently gratified by the answers which he gave to the following questions: First, Upon being asked how many seconds there were in a year and a half, he answered in about two minutes, 47 304 000. Second: On being asked how many seconds a man has lived who is 70 years, 17 days and 12 hours old, he answered in a minute and a half 2 210 500 800. One of the gentlemen who employed himself with his pen in making these calculations told him he was wrong, and the sum was not so great as he had said - upon which the old man hastily replied: stop, master, you forget the leap year. On adding the amount of the seconds of the leap years the amount of the whole in both their sums agreed exactly.Another question was asked and satisfactorily answered. Before two other gentlemen he gave the amount of nine figures multiplied by nine. … In 1790 he died at the age of 80 years, having never learned to read or write, in spite of his extraordinary power of calculation. Present day thinking is that Fuller learnt to calculate in Africa before he was brought to the United States as a slave. Supporting evidence for this comes from a passage written by Thomas Clarkson in 1788 describing the purchase of African slaves: It is astonishing with what facility the African brokers reckon up the exchange of European goods for slaves. One of these brokers has ten slaves to sell , and for each of these he demands ten different articles. He reduces them immediately by the head to bars, coppers, ounces… and immediately strikes the balance. The European, on the other hand, takes his pen, and with great deliberation, and with all the advantage of arithmetic and letters, begin to estimate also. He is so unfortunate, as to make a mistake: but he no sooner errs, than he is detected by this man of inferior capacity, whom he can neither deceive in the name or quality of his goods, nor in the balance of his account. Despite Fuller’s calculating abilities he was never taught to read or write and again this is evidence that he did not learn to calculate while in the United States. When someone who had witnessed his calculating abilities remarked that it was a pity he had not been educated, Fuller replied: ‘It is best I got no learning; for many learned men be great fools.' 

He died on 1790 in Alexandria, Virginia, USA

(from History of Mathematics)

image: portrait of a slave (author unknown)

    leradr:

    a—fri—ca:

    Thomas Fuller, African slave and mathematician

    Thomas Fuller was an African, shipped to America as a slave in 1724. He had remarkable powers of calculation, and late in his life was discovered by antislavery campaigners who used him as a demonstration that blacks are not mentally inferior to whites. 

    The place of his birth appears to have been between present day Liberia and Benin. Known as Negro Tom, we know that he was described as a very black man and also we know that he lived in Virginia after being brought to the United States as a slave. Certainly late in his life he was the property of Elixabeth Coxe of Alexandria. 

    Thomas Fuller, known as the Virginia Calculator, was stolen from his native Africa at the age of fourteen and sold to a planter. When he was about seventy years old, two gentlemen, natives of Pennsylvania, viz., William Hartshorne and Samuel Coates, men of probity and respectable characters, having heard, in travelling through the neighbourhood in which the slave lived, of his extraordinary powers in arithmetic, sent for him and had their curiosity sufficiently gratified by the answers which he gave to the following questions: First, Upon being asked how many seconds there were in a year and a half, he answered in about two minutes, 47 304 000. Second: On being asked how many seconds a man has lived who is 70 years, 17 days and 12 hours old, he answered in a minute and a half 2 210 500 800. One of the gentlemen who employed himself with his pen in making these calculations told him he was wrong, and the sum was not so great as he had said - upon which the old man hastily replied: stop, master, you forget the leap year. On adding the amount of the seconds of the leap years the amount of the whole in both their sums agreed exactly.

    Another question was asked and satisfactorily answered. Before two other gentlemen he gave the amount of nine figures multiplied by nine. … In 1790 he died at the age of 80 years, having never learned to read or write, in spite of his extraordinary power of calculation. 

    Present day thinking is that Fuller learnt to calculate in Africa before he was brought to the United States as a slave. Supporting evidence for this comes from a passage written by Thomas Clarkson in 1788 describing the purchase of African slaves: 

    It is astonishing with what facility the African brokers reckon up the exchange of European goods for slaves. One of these brokers has ten slaves to sell , and for each of these he demands ten different articles. He reduces them immediately by the head to bars, coppers, ounces… and immediately strikes the balance. The European, on the other hand, takes his pen, and with great deliberation, and with all the advantage of arithmetic and letters, begin to estimate also. He is so unfortunate, as to make a mistake: but he no sooner errs, than he is detected by this man of inferior capacity, whom he can neither deceive in the name or quality of his goods, nor in the balance of his account. 

    Despite Fuller’s calculating abilities he was never taught to read or write and again this is evidence that he did not learn to calculate while in the United States. When someone who had witnessed his calculating abilities remarked that it was a pity he had not been educated, Fuller replied: ‘It is best I got no learning; for many learned men be great fools.
    He died on 1790 in Alexandria, Virginia, USA
    image: portrait of a slave (author unknown)

  • April 13, 2014 12:57 pm

    theolduvaigorge:

    Sculpting Science

    • by  Alexa Lim, Associate Producer

    "Who were our first ancestors? What does it mean to be human? These are questions artist John Gurche and paleoanthropologist Rick Potts have been working to answer. They describe their collaborations on the Smithsonian’s Hall of Human Origins exhibit and discuss how art and science inform one another."

    Click through for audio: Paleo-artist John Gurche and paleoanthropologist Rick Potts discuss the intersection between art and science

    ***Very interesting interview.

    (Source: Science Friday)