No, you are really imagining them.
1937.
12km and above is the stratosphere . Human life cannot exist with that air pressure.The airplanes stay just to the peak of the troposhere.
nothing they didn't and they never will that's why airplanes don't exist -_-
Indoor RC airplanes do not exist due to regulations. As you might note, manufacturers are required to list the age range of the toys and specify that they are to be used outdoors.
There was no need for airports during the 17th and 18th century because there were no airplanes.
If gravity did NOT exist, then we all would be floating in mid air and would float into things, like airplanes. Plus, then if we fall, we would be in outerspace. COOL!
Concepts of flying machines existed, but the first powered flight by an aircraft didn't occur until 1903.
Please look at the coin again and post new question. No U.S. $10.00 gold coins exist dated 1937.
No, the air is what allows for lift. The only way an airplane can "fly" without air is if the downward force of gravity didn't exist.
The West Point Mint didn't exist in 1937. "W" is the initial of the coin's designer, A. A. Weinman. Please see the related question for more information.
Yes, jets really are airplanes but they are faster airplanes.