Ever questioned how an jet manages to ascend into the heavens? The key principle at effect is something known as lift. Simply explained, lift is a force that lifts an thing upwards, opposing the force of gravity. It's https://www.youtube.com/watch?v=m6XXPg5TT9I&list=PLelLU2xEiPay4YIA1_oRA_PNKrAJc3din&index=1