Ufos Unidentified Flying Objects Fact or Fiction
By: Lou Rountree
After meeting a stranger named Gorko just outside Bandera, Texas in 1985 while on a cat fishing trip, Gorko advised me that he had crash landed some thirty minutes earlier that afternoon in his UFO. I advised Gorko that this was no time for clowns...
By: Patricia Wicker
The scientific method is based on observation. Observation is followed by an attempt to draw some conclusion about a group of observations. This conclusion is named a hypothesis. Testing the hypothesis follows and then the results of the test are included into the consideration of...
By: Steve Lussing
Judging from what I have been reading on this site about Universal Law, I must have experienced a different academic upbringing than your average American student. Fact is, I am not American so I can't speak for the education that the kids across the border...
By: Curtis Carper
Stalling an aircraft is similar to stalling a car only to the degree that forward motion has stopped or is reduced to a dangerous level. When a car stalls, you coast over to the side of the road and park. In an airplane this option...
By: Ronnie Jay
SETI: an Exercise in fatuous Whimsicality?Among the intelligentsia of our age, few scientists of international note have displayed more preoccupation with the idea of extraterrestrial intelligence than did the late Dr Carl Sagan. He wrote extensively on the subject in several of his numerous...
By: Curtis Carper
Aircraft propellers work on the same principle as the aerodynamic lift created by air passing over a wing. The cross section of a wing will show that the upper surface creates a drop in air pressure allowing air to pass quicker on the upper side...
By: Curtis Carper
Structural failure of a wing isn't a very common occurrence. As it would immediately lead to a major disaster, you can be assured the manufacturer of the aircraft your flying in has done everything possible to avoid this situation.Metal fatigue would be a leading...
By: Kary Wright
A propeller is a marvel of engineering that, with the exception of the invention of the internal combustion engine, is probably the most important breakthrough in allowing us to accomplish powered flight. Yet a propeller is nothing more than wings rotating around a hub. If...
By: peterpan
The principle behind a propeller is just like the forces that work in an airfoil. The plane undergoes different aerodynamic forces that directly act on it including lift, drag, weight and thrust. Thrusting is mainly provided by the propeller's action that is also affected by...
By: Fine Existence
Aircraft propellers can be analogized as the soul of an aircraft, as without it an aircraft will just be another piece of metal. Simply put, an aircraft needs a propeller to fly. A propeller is really a type of fan (literally shaped like one too...

 

1 49 50 51 52 53 132