General Knowledge - Inventions
Exercise : Inventions - Section 1
- Inventions - Section 1
86.
Who invented Bicycle?
87.
In which decade with the first transatlantic radio broadcast occur?
Answer: Option
Explanation:
On December 12, 1901, a radio transmission received by Guglielmo Marconi resulted in the first transmission of a transatlantic wireless signal (Morse Code) from Poldhu, Cornwall, to St. John's, Newfoundland.
88.
In the 1700s, who would pay the postage fee for letters before the stamp was invented?
Answer: Option
Explanation:
Later in 1840, Rowland Hill invented the stamp, which was paid for by the sender, not the receiver.
89.
Who synthesized the first wholly artificial gene?
90.
FROZEN FOOD - Who discovered the first practical method of freezing food?
Answer: Option
Explanation:
In the 1920s Clarence Birdseye discovered that if food was flash-frozen under pressure, it would freeze without the formation of ice crystals.
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