George Washington Carver (1880-1943) was born into a slave house near Diamond Grove, Missouri (USA); he worked his way through Iowa State college, obtaining an M.A. in Agriculture in 1896. He was then invited by Booker T. Washing ton to become Director of Agricultural Research at Tiskegee Institute in Alabama. Hoping to improve the lives of disadvantaged black farmers and the economy of the Southern US, he promoted peanuts and sweet potatoes as alternatives to soil-depleting cotton and developed numerous products that could be made from each of these crops. He lectured widely on his work and was instrumental in the crop diversification that occurred in the Southern US in the early 20th century.
Tuesday, 13 November 2007
What is Superfluidity?
What is Superfluidity?
Superfluidity is a phase of matter characterised by the complete absence of viscosity. Thus, superfluids placed in a close loop can flow endlessly without friction. Superfluidity was discovered by Pyotr Leonidvich Kapitsa, John F. Allen and Don Misener in 1937. The study of superfluidity is called quantum hydrodynamics.
Who was Kind Tutankhamun?
Who was Kind Tutankhamun?
Tutankhamun (1340 BC) was the Egyptian pharaoh of the 18th dynasty. He became king at the age of 12 and died at 18. He abandoned the worship of the sun-god instituted by Akhenaten, reinstating the worship of Amun and made Thebes the capital city. Although not important in the history of Egypt, he became world famous because of the rich and varied contents of his tomb at Thebes in the Valley of the Kings, discovered in 1922 by Lord Caranarvon and Howard Carter.
Night Blindness/Colour Blindness.....
What is the difference between night blindness and colour blindness?
Night blindness refers to the inability of the eye to adapt to reduced illumination, therefore, leading to a complaint of not being able to see in the dark. Individuals complaint of not being able to see in the dark. Individuals suffering from night blindness not only see poorly at night, but also require some time fore their eyes to adjust from brightly lit areas to dim ones.
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Colour blindness, on the other hand, refers to the difficulty in seeing differences between some of the colours that other people can easily distinguish. It is most often genetic in nature, but might also occur because of the eye, nerve, or brain damage or due to exposure to certain chemicals.
Monday, 12 November 2007
'When Witches go riding, and black cats are seen'
"Shadows of a thousand years rise unseen,
Voices whisper in the trees,
Tonight is Halloween!"
--------------------------------Dexter Kozen, Professor
"It's Halloween! It's Halloween!
The moon is full and bright
And we shall see what can't be seen
On any other night.
Skeletons and ghosts and ghouls,
Grinning goblins fighting duels,
Werewolves rising from their tombs,
Witches on their magic brooms.
In masks and gown we haunt the street
And knock on doors for trick or treat.
Tonight we are the king and queen,
For oh tonight it's Hallowen!"
--------------------------------------Jack Prelutsky, poet
"A grandmother pretends she doesn't
know who you are on Hallowen."
--------------------------------------Erma Bombeck, Humourist
"Eye of newt, and toe of frog,
Wool of bat, and tongue of dog,
Adder's fork, and blind-worm's sting,
Lizard's leg, and owlet's wing,
For a charm of powerful trouble,
Like a hell-broth boil and bubble."
--------------------------------------William Shakespeare, Playwright
"At first cock-crow the ghosts must go
Back to their quiet graves below."
--------------------------------------Theodosia Garrison, Poet
"My candle was nearly burnt out, when,
by the glimmer of the half-extinguished
light, I saw the dull yellow eye of the
creature open."
--------------------------------------Mary Shelley, novelist
"One need not be a chamber to be haunted;
One need not be a house;
The brain has corridors surpassing Material place."
-----------------------------------------------Emily Dickinson, poet
"When witches go riding, and black cats
are seen, the moon laughs and whispers,
'tis near Halloween."
-------------------------------19th century Halloween postcard
"The devil's voice is sweet to hear."
-----------------------------------------Stephen King, novelist
"Once upon a midnight dreary, while I
pondered, weak and weary,
Over many a quaint and curious volume of
forgotten lore,
While I nodded, nearly napping, suddenly
there came a tapping...."
------------------------------Edgar Allan Poe, Poet
Voices whisper in the trees,
Tonight is Halloween!"
--------------------------------Dexter Kozen, Professor
"It's Halloween! It's Halloween!
The moon is full and bright
And we shall see what can't be seen
On any other night.
Skeletons and ghosts and ghouls,
Grinning goblins fighting duels,
Werewolves rising from their tombs,
Witches on their magic brooms.
In masks and gown we haunt the street
And knock on doors for trick or treat.
Tonight we are the king and queen,
For oh tonight it's Hallowen!"
--------------------------------------Jack Prelutsky, poet
"A grandmother pretends she doesn't
know who you are on Hallowen."
--------------------------------------Erma Bombeck, Humourist
"Eye of newt, and toe of frog,
Wool of bat, and tongue of dog,
Adder's fork, and blind-worm's sting,
Lizard's leg, and owlet's wing,
For a charm of powerful trouble,
Like a hell-broth boil and bubble."
--------------------------------------William Shakespeare, Playwright
"At first cock-crow the ghosts must go
Back to their quiet graves below."
--------------------------------------Theodosia Garrison, Poet
"My candle was nearly burnt out, when,
by the glimmer of the half-extinguished
light, I saw the dull yellow eye of the
creature open."
--------------------------------------Mary Shelley, novelist
"One need not be a chamber to be haunted;
One need not be a house;
The brain has corridors surpassing Material place."
-----------------------------------------------Emily Dickinson, poet
"When witches go riding, and black cats
are seen, the moon laughs and whispers,
'tis near Halloween."
-------------------------------19th century Halloween postcard
"The devil's voice is sweet to hear."
-----------------------------------------Stephen King, novelist
"Once upon a midnight dreary, while I
pondered, weak and weary,
Over many a quaint and curious volume of
forgotten lore,
While I nodded, nearly napping, suddenly
there came a tapping...."
------------------------------Edgar Allan Poe, Poet
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