Question 41 : Who invented the battery?
1. John Wilkinson
2. Alessandro Volta
3. James Hargreaves
4. Thomas Edison
View Answer   Discuss with Members

Question 42 : What J. B. Dunlop invented?
1. Pneumatic rubber tire
2. Automobile wheel rim
3. Rubber boot
4. Model airplanes
View Answer   Discuss with Members

Question 43 : The initials JCB on earth-moving equipment are those of the founder of the company that makes it. What is his name?
1. John Christopher Ballantyne
2. Joseph Cyril Bamford
3. John Christopher Baxter
4. Jack Croxford Baker
View Answer   Discuss with Members

Question 44 : What Benjamin Franklin invented?
1. Bifocal spectacles
2. Radio
3. Barometer
4. Hygrometer
View Answer   Discuss with Members

Question 45 : Which of the following was first patented by an Australian in 1889?
1. Electric Drill
2. Electric Shaver
3. Electric Fence
4. Electric Heater
View Answer   Discuss with Members

Question 46 : What Thomas Davenport invented?
1. Screw propellor
2. Electric streetcar
3. Chesterfield
4. Sleeping (railway) car
View Answer   Discuss with Members

Question 47 : Who invented the phonograph?
1. Thomas Edison
2. John Kruesi
3. Jules Levy
4. Alexander Graham Bell
View Answer   Discuss with Members

Question 48 : What plaything was invented by Joe McVicker in 1956?
1. Silly Putty
2. Etch-A-Sketch
3. Lite-Brite
4. Play-Doh
View Answer   Discuss with Members

Question 49 : Who is the English physicist responsible for the 'Big Bang Theory'?
1. Albert Einstein
2. Michael Skube
3. George Gamow
4. Roger Penrose
View Answer   Discuss with Members

Question 50 : What piece of clothing was invented by French fashion designer Louis Reard in 1946?
1. Zoot suit
2. Mini-skirt
3. Bikini
4. Tank top
View Answer   Discuss with Members