Even though traveling by plane is common nowadays, these huge steel birds are still surrounded by secrets and myths that give birth to a lot of questions. Pardon the pun, but its high time to get more answers!
Ever noticed, for example, how on a cold day, you see your own puff of breath when you exhale? The exact same thing happens to a plane. The temperature at 25, 000 feet or higher, which is cruising altitude, is really low, around -30 degrees Fahrenheit. Ok, but why are these contrails sometimes long and sometimes short? Date: 2022-04-19
