More commonly known as Fibonacci, Leonardo Bonacci is notable for popularising the Hindu-Arabic numeral system, with its use of zero, decimal points and 10 numbers instead of the ponderous Roman numeral system. He"s most famous, however, for his sequence of numbers: 0, 1, 1, 2, 3, 5, 8... By adding the first two numbers, you arrive at the third, and adding the previous two numbers, you arrive at the next number, and so on. Disregarding the zero, the first four numbers correspond to today"s date, 11/23.
Spiral aloe, Kangaroo Island, Australia
Today in History
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Grand Teton National Park, Wyoming, USA
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Leucistic Annas hummingbird
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North Sea at sunset, Norddorf, Germany
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Dubrovnik, Croatia
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Porto Flavia, Sulcis-Iglesiente, Sardinia, Italy
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Greater flamingos, Camargue Regional Nature Park, France
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Everglades National Park, Florida
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Sassnitz lighthouse, Germany
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Methoni Castle, Messinia, Greece
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Gran Paradiso National Park, Italy
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Quiver trees, Namibia
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Thorny devil, Australia
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Waterfall at Wimbachklamm Gorge, Bavaria, Germany
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Jackson Square, New Orleans, Louisiana, United States
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European hedgehog
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Boreal owl
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Lightning and storm clouds at sunset near Bowman, Nebraska, United States
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Red kite in snow
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Skipper butterfly on an Echinacea flower
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The Temple of Saturn, Rome, Italy
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Emerald Bay and Fannette Island, Lake Tahoe, California, United States
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Autumn colours below Mount Sneffels near Ridgway, Colorado, United States
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Cable car and Sugarloaf Mountain, Rio de Janeiro, Brazil
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Banff, Alberta, Canada
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Reine, Norway
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Grand Canyon and the Colorado River, Arizona, United States
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Medieval Aqueduct, Perugia, Italy
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Madame Sherri Forest, New Hampshire, United States
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Central Park, New York, United States
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Alpine marmots, Hohe Tauern National Park, Austria
Bing Wallpaper Gallery

