16373 Hard Trivia Questions
16373 public questions at this depth. How many can you answer?
What is the chemical name of the compound responsible for banana scent?
Answer
Isoamyl acetate
What element was first discovered in the sun's spectrum?
Answer
Helium
What is the half-life of carbon-14?
Answer
5,730 years
Who was the first woman to win a Nobel Prize in Chemistry?
Answer
Marie Curie
What is the temperature of the triple point of water in Kelvin?
Answer
273.16 K
What is the half-life of uranium-238 in billions of years?
Answer
4.468 billion years
Which element has the highest ionization energy?
Answer
Helium
Who discovered the neutron?
Answer
James Chadwick
What is the molecular geometry of methane?
Answer
Tetrahedral
What is the element with the highest melting point among metals?
Answer
Tungsten
Which American created Maltesers at the Mars factory in Slough in 1936?
Answer
Forrest Mars Sr.
What does the stretching acronym 'PNF' stand for?
Answer
Proprioceptive Neuromuscular Facilitation
Which principle states that the body adapts specifically to the demands placed on it?
Answer
SAID principle
Which test of anaerobic power involves a 30-second maximal bike sprint?
Answer
Wingate test
What does the acronym 'ATP' stand for in the context of cellular energy for exercise?
Answer
adenosine triphosphate
What is the type of muscle contraction where the muscle lengthens under tension, such as when lowering a weight?
Answer
eccentric contraction
Which Brazilian aviator made the first powered flight in Europe in 1906?
Answer
Alberto Santos-Dumont
What treaty ended the Russo-Japanese War in 1905?
Answer
Treaty of Portsmouth
Who made the first radio broadcast of voice and music in 1906?
Answer
Reginald Fessenden
What was the first fully synthetic plastic, invented in 1907?
Answer
Bakelite
What was the name of Charles Lindbergh's transatlantic airplane?
Answer
Spirit of St. Louis
What language family includes Tamil, Telugu, and Kannada?
Answer
Dravidian
Which language family contains the most languages?
Answer
Niger-Congo
What is the reconstructed ancestor of the Indo-European languages called?
Answer
Proto-Indo-European
What is the name of the language spoken in ancient Sumer?
Answer
Sumerian