The air pressure under the wings is greater that the pressure over the wings creating lift.
Iron is heavier because iron is a metal and metals are heavier but silica is not a metal so silica is lighter than iron.
no vinegar is heavier
No, the Sun is much heavier than the Earth. The Sun's mass is about 333,000 times greater than the Earth's mass.
Yes, uranium is more dense (heavier) than lead.
Gases that are heavier than oxygen include nitrogen, argon, krypton, xenon, and radon. These gases have greater atomic or molecular weights than oxygen, making them heavier.
"Heavier than air" refers to airplanes.
The first heavier than air flight, which was by the Wright brothers was in 1903.
Heavier: Airplanes Gliders Helicopters Lighter: Blimps Balloons
hot air balloon, jets, airplanes, etc.
Yes they are still being used but they are not popular. That answer is true for military airplanes but for civilian airplanes propeller driven airplanes are the MOST flown and more of them are being manufactured than jet planes.
All airplanes are aircraft, but not all aircraft are airplanes. "Aircraft" means any man-made thing that is supposed to be able to maintain sustained flight--gliders, helicopters, autogyros, blimps, paper airplanes, whatever. An "airplane" is a powered heavier-than-air aircraft with fixed wings.
are you being serious, if you are no, 15 is not heavier than 18 pounds of feathers.
There are "lighter-than-air" craft which are known as blimps or balloons, "heavier-than-air" craft which are divided into fixed-wing (airplanes) and rotary wings (helicopters).
A tank is typically heavier than an airplane. Tanks are military vehicles designed for combat, and they are armored and heavily equipped with weapons. Airplanes are designed for flight, and their weight can vary depending on the type and size of the aircraft.
Any object, provided it is aerodynamic in its design, may be rendered airborne, providing it can generate the needed lift and thrust.
There was some experiments with gliders in the late 1800 but nothing yet for powered airplanes which is what is generally meant when referring to airplanes. Not until 1903, when brothers Orville and Wilbur Wright from Dayton Ohio, were the first to successfully fly a heavier than air powered airplane and have been credited with being the authentic true inventors of the airplane.
yes Airplanes were called Heavier Than Air Machines originally. Aeroplane was another common word. Not sure when airplane became the general word.