Topic Details (Notes format)

Which element has the chemical symbol "Db"?

Which element has the chemical symbol "Po"?

Which logic gate outputs HIGH only if all inputs are HIGH?

Who discovered francium?

Who discovered the first gravitational lens?

Which Spanish conquistador conquered the Aztec Empire in the early 16th century?

What is the smallest unit of matter that retains the properties of an element?

Which wave property measures the number of oscillations per second?

Which scientist is known for the famous equation E=mc²?

Who invented the airplane with the first successful powered flight?