Who invented Jet Engine?
Who invented Jet Engine?
What Frank Whittle invented?
What Frank Whittle invented?
Which scientist discovered the radioactive element radium?
Which scientist discovered the radioactive element radium?
When was barb wire patented?
When was barb wire patented?
Where is the village of Branston, after which the famous pickle is named?
Where is the village of Branston, after which the famous pickle is named?
Until Victorian times, chocolate was thought of as a drink. When did the first chocolate bar appear?
Until Victorian times, chocolate was thought of as a drink. When did the first chocolate bar appear?
What James Watt invented?
What James Watt invented?
What Benjamin Franklin invented?
What Benjamin Franklin invented?
In which decade was the first solid state integrated circuit demonstrated?
In which decade was the first solid state integrated circuit demonstrated?
When was the Raggedy Ann doll patented?
When was the Raggedy Ann doll patented?
Who synthesized the first wholly artificial gene?
Who synthesized the first wholly artificial gene?
What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes ?
What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes ?
What now-ubiquitous device was invented by Zenith engineer Eugene Polley in 1955?
What now-ubiquitous device was invented by Zenith engineer Eugene Polley in 1955?
FROZEN FOOD - Who discovered the first practical method of freezing food?
FROZEN FOOD - Who discovered the first practical method of freezing food?
Who invented Gunpowder?
Who invented Gunpowder?
What type of system did Paul Nipkow, John Baird, and Charles Jenkins all invent?
What type of system did Paul Nipkow, John Baird, and Charles Jenkins all invent?
What Sir Isaac Newton invented?
What Sir Isaac Newton invented?
What invention caused many deaths while testing it?
What invention caused many deaths while testing it?
What J. B. Dunlop invented?
What J. B. Dunlop invented?
Who invented Bicycle?
Who invented Bicycle?