Ever considered how an jet manages to float into the heavens? The key principle at work is something known as lift. Simply stated, lift is a force that propels an item upwards, fighting the force of the earth. It's https://www.youtube.com/watch?v=m6XXPg5TT9I&list=PLelLU2xEiPay4YIA1_oRA_PNKrAJc3din&index=1