Title: Incandescent light bulb.
Question: What does a "T" rating symbol on an electrical contact mean?

Title: Copper.
Question: What is a weaker form of copper than fine-grained polycrystalline?

Title: Red.
Question: What was on the forehead of the woman on the scarlet horned beast?

Title: Political philosophy.
Question:
What strongly altered the power balances and perceptions of origin of power in the Mediterranean region?