Topic Details (Notes format)

Which empire built the famous Machu Picchu site?

Which element has the chemical symbol "Re"?

Which element has the chemical symbol "Sr"?

Which region in northern Chile and southern Peru is famed for dryness and astronomical observatories?

Which element has the chemical symbol "No"?

In computing, which device converts digital signals to analog and vice versa for telephone lines?

Which country is known for its fjords and Viking heritage, located in Northern Europe?

Who discovered electromagnetism?

Which chemical test uses nitric acid and ammonia to detect proteins (turning violet)?

The Nobel Prize for Literature was first awarded in which year?