Answer:
1) Hughes invented Hughes Aircraft in 1932 which helped form many ideas and inventions in aerospace tech.
2) Hughes drill bit was named "Rock Eater" because it penetrated medium and hard work with 10 times more speed then any former bit.
3) (I don't know if were still talking about the drill bit or what but here's my answer for that) "Rock Eater" found virtually all the oil discovered in the glory days of wildcatting, making Howard the richest man in the world at the time.
4) "Rock Eater" penetrated 14 feet of hard rock in 11 hours which no previous equipment had been able to penetrate.
5) It greatly effected the oil industry and the Hughes Tool Company.
Explanation:
(Really hope this helps!! Sorry if any of these are incorrect, if they are I am very very sorry! Have a lovely day by the way! <3)
The battle you are referring to is actually called the Battle of the Ironclads. In this battle, it was the Merrimac (from the Confederacy) versus the USS Monitor (from the Union). This was the first battle between iron-fortified vessels in the Civil War. This battle ended up in a draw but represented a new form of fighting that both the Union and Confederacy had to be ready for.