111. Who is known as the father of canning (food preservation)?
112. Cotton gin was created by Eli Whitney in the year:
113. Stereoscope was invented by:
Frederic E. Ives
Sir Charles Wheatstone
114. Who developed the modern moving assembly line?
Ransom E. Olds
115. Who is the inventor of the lawn mower?
116. Who is the inventor of the modern drinking straw?
117. Who discovered neutron?
118. Who is referred to as the father of nuclear chemistry?
119. Who created the first true modern atlas?
120. In which year, Richter magnitude scale was developed?