Edwin Herbert Land invented what ?
Answer: B
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Electron was invented by
Answer: A
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The first hand glider was designed by??
Answer: A
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For what does the world owe Almon Strowger a debt of gratitude?
Answer: C
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For what is Charles Babbage (1792-1871) remembered?
Answer: A
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Ernest Rutherford invented what ?
Answer: C
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Aeroplane was invented in the year
Answer: D
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Rayon was invented by
Answer: A
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When were bar code scanners invented?
Answer: C
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First electric DC motor was invented by
Answer: B
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