1) To be a good engineer, you need a lot of writing and learning.
2) The pyrometer is used to measure the temperature of hot metal.
3) Man has learned to split the atom in order to obtain a large amount of energy.
4) Scientists are trying to solve the problem associated with the new phenomena of electricity.
5) Lighting-conductor is a metal device used to protect buildings against lightning.
6) To conduct experiments with atmospheric electricity was very dangerous at that time.
7) To magnetize an object means to put it into the field of the magnet.