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- Question
What item, originally called the 'Whirlwind', was invented by Ives McGaffey in 1869?
Options- A. Blender
- B. Electric mixer
- C. Washing machine
- D. Vacuum cleaner
- Correct Answer
- Vacuum cleaner
- 1. What Galileo invented?
Options- A. Barometer
- B. Pendulum clock
- C. Microscope
- D. Thermometer Discuss
- 2. Which scientist discovered the radioactive element radium?
Options- A. Isaac Newton
- B. Albert Einstein
- C. Benjamin Franklin
- D. Marie Curie Discuss
- 3. What did cardiologist Dr. Paul Zoll invent in Massachusetts in 1952?
Options- A. EKG
- B. Artificial heart valve
- C. Artificial heart
- D. Pacemaker Discuss
- 4. When were bar code scanners invented?
Options- A. 1940s
- B. 1950s
- C. 1970s
- D. 1960s Discuss
- 5. In which decade was the AEEE (now the IEEE) founded?
Options- A. 1850s
- B. 1880s
- C. 1930s
- D. 1950s Discuss
- 6. Who invented Bakelite?
Options- A. Charles Goodyear
- B. Leo Hendrik Baekeland
- C. Roy Plunkett
- D. Henry Ford Discuss
- 7. What drink was invented by Charles Leiper Grigg in 1929?
Options- A. 7-Up
- B. Yoo-Hoo
- C. Pepsi
- D. Hawaiian Punch Discuss
- 8. Radish is a
Options- A. bulb
- B. conn
- C. modified root
- D. tuber Discuss
- 9. Primary phloem develops from
Options- A. lateral meristem
- B. protoderm
- C. extrastelar cambium
- D. provascular tissue Discuss
- 10. Nymph is the name of young one of
Options- A. butterfly
- B. beetle
- C. housefly
- D. cockroach Discuss
Inventions problems
Search Results
Correct Answer: Thermometer
Explanation:
Various authors have credited the invention of the thermometer to Cornelius Drebbel, Robert Fludd, Galileo Galilei or Santorio Santorio. The thermometer was not a single invention, however, but a development.
Galileo Galilei also discovered that objects (glass spheres filled with aqueous alcohol) of slightly different densities would rise and fall, which is nowadays the principle of the Galileo thermometer (shown). Today such thermometers are calibrated to a temperature scale.
Correct Answer: Marie Curie
Correct Answer: Pacemaker
Explanation:
The pacemaker is an electrical device that regulates the heartbeat.
Correct Answer: 1970s
Explanation:
The scanner reads the bar code label on something at a supermarket, and translates it into a number which the computer reads.
Correct Answer: 1880s
Explanation:
The IEEE (Institute of Electrical and Electronics Engineers) was formed in 1963 by the merger of the Institute of Radio Engineers (IRE, founded 1912) and the American Institute of Electrical Engineers (AIEE, founded 1884).
Correct Answer: Leo Hendrik Baekeland
Explanation:
Leo Hendrik Baekeland invented the first plastic called Bakelite.
Correct Answer: 7-Up
Explanation:
Grigg, who was from Missouri, originally named his creation 'Bib-Label Lithiated Lemon-Lime Soda'.
Correct Answer: modified root
Correct Answer: provascular tissue
Correct Answer: cockroach
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