When was barb wire patented?

A. 1874
B. 1840
C. 1895
D. 1900

What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes?

A. Charles Richter
B. Hiram Walker
C. Giuseppe Mercalli
D. Joshua Rumble

What Galileo invented?

A. Barometer
B. Pendulum clock
C. Microscope
D. Thermometer

This statesman, politican, scholar, inventor, and one of early presidents of USA invented the swivel chair, the spherical sundial, the moldboard plow, and the cipher wheel?

A. George Washington
B. Alexander Hamilton
C. John Adams
D. Thomas Jefferson

What James Watt invented?

A. Diving bell
B. Steam boat
C. Hot air balloon
D. Rotary steam engine

Where is the village of Branston, after which the famous pickle is named?

A. Yorkshire
B. Lancashire
C. Staffordshire
D. Norfolk

Who invented Jet Engine?

A. Sir Frank Whittle
B. Gottlieb Daimler
C. Roger Bacon
D. Lewis E. Waterman

What invention caused many deaths while testing it?

A. Dynamite
B. Ladders
C. Race cars
D. Parachute

Who invented Gunpowder?

A. G. Ferdinand Von Zeppelin
B. Sir Frank Whittle
C. Roger Bacon
D. Leo H Baekeland

Until Victorian times, chocolate was thought of as a drink. When did the first chocolate bar appear?

A. 1828
B. 1831
C. 1825
D. There is no sure date