the wright brothers first invented planes
first use: they were one of the first planes to fly successfully. They were used in ww1 and the first part of ww2. Now they are used in air clubs, air shows and as private planes
well the first inventor of planes and technically the first inventor of by planes were the wright brothers because there first plane was a by plane
Planes powered by internal combustion engines came first.
The first serial number of Boeing planes is 707.
The inclined plane is a simple machine known to us since ancient times, so it's impossible to tell when/where it was first used.
In WWI planes were used mostly for reconnaissance.
There have been many such books, One of the first that survived is Euclid's Elements.
two planes intersect in one line, or the planes could be parallel. by the way there is no such thing as skew planes...
No, two planes do not intersect in exactly one plane unless the planes are exactly overlapping, making one plane. In Euclidean Geometry two planes intersect in exactly one line.
The word planes has one syllable.
Yes.No. Any two planes will be contained in infinitely many planes, not "exactly one".
If it's the one I'm thinking of, then Kai.