Title: Qing dynasty.
Question: Which two ethnicities made up the majority of the Banner Armies?

Title: Queen Victoria.
Question: Who was rumored to be the father of Flora Hastings "pregnancy"?

Title: Uranium.
Question: How much economically viable uranium is there in ore reserves, in millions of tonnes?

Title: Gramophone record.
Question:
What is a gramophone or 'vinyl' record?