Topic Details (Notes format)

Who discovered the electron microscope?

Which alliance of city-states under Athens fought against Sparta’s Peloponnesian League?

In which layer of Earth’s atmosphere do commercial airplanes typically fly?

Which inventor is known for the phonograph and practical electric light bulb improvements?

Who discovered roentgenium?

In which city is the Brandenburg Gate, a famous historical monument in Germany?

Which element has the chemical symbol "Ca"?

Which Indo-Greek city was founded by Alexander the Great on the Indus River?

Which element has the chemical symbol "Se"?

Who discovered myostatin?