they invented planes on the 17th of December 1903
Answer2
I suggest that the date of an invention and the date it worked are not necessarily the same. The first flight by an aeroplane is generally accepted to be 17th of December 1903. But the concept must have been months or years before this. But who knows when the first thought process started? In fact Leornardo da Vinci in the 1400-1500s had the idea for a helicopter. Does that make him the inventor of the helicopter? And are you counting a a helicopter as an aeroplane in your question?
it can fly
two planes intersect in one line, or the planes could be parallel. by the way there is no such thing as skew planes...
The angle between two planes when the planes intersect at a point is the acute angle fixed by the normal vectors of the planes.
9 planes in Cube 3 Planes in Cuboid
parallel planes
yes they did invent the first powered planes
Glenn Curtiss invented ailerons which helped steer planes.
They made the first airplane (with an engine.) They did not actually invent flight.
Probably the cavemen...so many people invented planes that couldn't fly, everyone quit counting.
He invented a human run tank, cannons, 6 shooter guns, and big crossbows not all were made but he drew planes for them to. I think that's all.
they created light houses cars phones electricity bikes planes rockets guns clothes computers books pens buildings and pretty much everything.
honestly what i think is that people invented boats before cars, planes, or trains.
Of course not! A plane can travel at hundreds of miles an hour. The fastest horse only reaches 55 miles per hour for a very short distance. I mean, really! If horses were faster than planes, than why did we invent planes to travel long distances?
By WWI, airplanes had been around for more than a decade. Too late by far to "invent" them then. There were several countries and manufacturers turning out planes that weren't absolutely horrible to fly.
what did Obama invent
Yes but these military planes are flown by navy pilots or military pilots.
they invent cheese