Radium was discovered by
Answer: C
Marie and Pierre Curie discovered radium.
They isolated it from pitchblende in 1898, along with polonium, processing tonnes of ore for a fraction of a gram. Marie received the 1911 Nobel Prize in Chemistry for it.
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What invention is credited to the Russian born American inventor Vladimir Kosma Zworykin?
Answer: C
Television is credited to him.
Vladimir Zworykin invented the iconoscope camera tube in 1923 and the kinescope picture tube in 1929, which together made all-electronic television possible. He worked at Westinghouse and then RCA.
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Who Invented Microwave Oven ?
Answer: C
Percy Spencer invented it.
An engineer at Raytheon, he noticed in 1945 that a chocolate bar in his pocket had melted while he stood near an active magnetron. He tried popcorn next, then an egg, which exploded. Raytheon sold the first Radarange in 1947.
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Who invented silicones?
Answer: B
Professor F.S. Kipping invented them.
Frederic Stanley Kipping worked on organosilicon compounds from 1899 and coined the word silicone. He thought them of no practical use; they became the basis of sealants, lubricants and medical implants.
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Which group invented and developed the early Internet?
Answer: B
The United States government did.
ARPANET was funded by the Advanced Research Projects Agency of the Department of Defense, and its first link was made in October 1969. The TCP/IP protocols that made it an internet were developed under the same funding in the 1970s.
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When was the first lawn mower invented?
Answer: A
The first lawn mower was invented in 1830.
Edwin Budding, an engineer in a Gloucestershire cloth mill, adapted the rotary cutter used to trim the nap on cloth. Before it, grass was cut with a scythe or grazed by sheep.
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The type of resistor whose electrical resistance falls as its temperature rises was invented by
Answer: A
Samuel Ruben invented it.
The thermistor's resistance falls sharply as it warms, which makes it a sensitive temperature sensor and a means of limiting the surge of current when equipment is switched on. Ruben also invented the mercury battery.
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Which of the following was first patented by an Australian in 1889?
Answer: A
It was the electric drill.
Arthur James Arnot, an engineer working for the Union Electric Company in Melbourne, patented it in 1889 for drilling rock and coal. Wilhelm Fein had made an electric hand drill in Germany in 1895, and Black and Decker added the pistol grip and trigger in 1917.
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In which decade was the Internet first implemented?
Answer: C
It was first implemented in the 1960s.
ARPANET's first link, between UCLA and Stanford Research Institute, was made on 29 October 1969. The first message crashed the system after two letters of 'login'.
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In which decade was the AEEE (now the IEEE) founded?
Answer: B
It was founded in the 1880s.
The American Institute of Electrical Engineers was founded in 1884, with Norvin Green as its first president and Thomas Edison among its early members. It merged with the Institute of Radio Engineers in 1963 to form the IEEE.
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