Archive for May, 2008


Night Blindness : Cause & Cure


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You’ve heard of night vision right ? but did you know of night blindness ? Yes that’s right night blindness is an illness which causes the affected to be completely blind in dim light and darkness. It’s caused by a dietary deficiency of vitamin A which causes the eye cells to dry out thus limiting their […]

Whats A Light Year ?


A light year is the total distance travelled by a beam of light in one year. A beam of light can travel at up to 300,000 km/sec and the approximate distance covered in a year works out to be 9,470,000,000,000 km (1 light year = 9.47 x1012 km). So why did scientists create this new […]

Electric Eels & The Electric Fish


Did you know that fish like the electric eel and the electric ray can produce high voltage electric shocks as high as 700 volts.  Although these electric shocks can only be discharged in short bursts they are extremely effective as both an attack and defense mechanism. To put things into perspective the electricity levels involved with an eel could protect it from most […]