Before This… Planes Used Propellers! ✈️

本站添加: 2026-05-16

[00:00:00]Before jet engines, flying was slow.

[00:00:02]Planes used propellers. Then came the jet engine. German engineer Hans von Ohain developed one of the first operational jet engines. [music] Instead of propellers, it used fast-moving exhaust to generate thrust.

[00:00:16]Germany even made the first operational jet fighter during World War II. Though it wasn't ready to be used effectively.

[00:00:22][music] The result? Much higher speeds and more efficient long-distance travel.

[00:00:28]Today, almost every commercial airplane you see uses jet engines. It made the world a much smaller place.