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Página 94
By this definition , the light we call red at the bottom of the rainbow spectrum ripples at a wavelength - a distance between the crests of its waves of about 617 nanometers , roughly 205 billionths of a foot .
By this definition , the light we call red at the bottom of the rainbow spectrum ripples at a wavelength - a distance between the crests of its waves of about 617 nanometers , roughly 205 billionths of a foot .
Página 97
In laboratory experiments scientists have raised generations of mice under colored lights . ... A rainbow also caused a spectrum of activity : mice living under green light were least active ; those under red light were most active .
In laboratory experiments scientists have raised generations of mice under colored lights . ... A rainbow also caused a spectrum of activity : mice living under green light were least active ; those under red light were most active .
Página 59
MISER Light Bulbs Light of a 100 WE BRING GOOD THINGS TO LIFE . watt bulb for only 95 watts NOW YOU CAN HAVE THE LIGHT YOU NEED ... FOR LESS ENERGY . Miser Lights give you light comparable to ordinary household bulbs .
MISER Light Bulbs Light of a 100 WE BRING GOOD THINGS TO LIFE . watt bulb for only 95 watts NOW YOU CAN HAVE THE LIGHT YOU NEED ... FOR LESS ENERGY . Miser Lights give you light comparable to ordinary household bulbs .
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Contenido
PAGE | 49 |
A Place in the Mountains | 57 |
Chinas Great Wall of Wonder | 67 |
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