A. Charles Richter
B. Hiram Walker
C. Giuseppe Mercalli
D. Joshua Rumble
A. Barometer
B. Pendulum clock
C. Microscope
D. Thermometer
A. George Washington
B. Alexander Hamilton
C. John Adams
D. Thomas Jefferson
A. Diving bell
B. Steam boat
C. Hot air balloon
D. Rotary steam engine
A. Yorkshire
B. Lancashire
C. Staffordshire
D. Norfolk
A. Sir Frank Whittle
B. Gottlieb Daimler
C. Roger Bacon
D. Lewis E. Waterman
A. Dynamite
B. Ladders
C. Race cars
D. Parachute
A. G. Ferdinand Von Zeppelin
B. Sir Frank Whittle
C. Roger Bacon
D. Leo H Baekeland
A. 1828
B. 1831
C. 1825
D. There is no sure date
A. 1850s
B. 1860s
C. 1870s
D. 1880s