Inventions Questions

• Analytical Engine was invented by
• Which insurance salesman invented the fountain pen in 1884?
• Air conditioner was discovered by
• Who is often called the 'first African-American' inventor?
• Roentgen discovered
• What Frank Whittle invented?
• What Henry Bessemer invented?
• Who Invented Contact Lens ?
• Who Invented Worldwide Standard Time Zones ?
• In which year was the first solid state integrated circuit demonstrated?
• Who invented the BALLPOINT PEN?
• What drink was invented by Charles Leiper Grigg in 1929?
• What item, originally called the ‘Whirlwind’, was invented by Ives McGaffey in 1869?
• What treat was invented by 11-year-old Frank Epperson in 1905?
• Who Invented Dynamite Explosive Material?
• The credit of inventing the tv goes to
• When was the voting machine invented?
• Who invented logarithms?
• When were bar code scanners invented?
• Stethoscope was invented by