Ever questioned how an jet manages to float into the heavens? The key principle at work is something called lift. Simply put, lift is a energy that propels an thing upwards, opposing the pull of the earth. It's https://www.youtube.com/watch?v=m6XXPg5TT9I&list=PLelLU2xEiPay4YIA1_oRA_PNKrAJc3din&index=1