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The point of the original question, which I guess I should have clarified, was to help establish (or debunk) the possibility of extraterrestrial life travelling to Earth in space. I was trying to figure out how realistic the possibility is. Not understanding propulsion, anti-gravity, physics, etc, I figured that chances of interplanetary travel is nil if a craft required more than one type of propulsion; one to drive it through space, and another to travel in an atmosphere.
Both Pioneer spacecraft are escaping the Solar System, but are slowing under the influence of the Sun's gravity. Upon very close examination of navigational data, the spacecraft were found to be slowing slightly more than expected. The effect is an extremely small but unexplained acceleration towards the Sun, of 8.74±1.33×10−10 m/s2. The two spacecraft were launched in 1972 and 1973 and the anomalous acceleration was first noticed as early as 1980, but not seriously investigated until 1994. The last communication with either spacecraft was in 2003, but analysis of recorded data continues.
Originally posted by IblisLucifer
reply to post by Aim64C
To define gravity is to overcome time, gravity is what dominates time and all matter defeating it takes alot of energy its a war you can never really win
but you can save as much time as you can, "The most valuable thing i know is Time"
One way is to move fast on the surface like a car or a ship it runs on gas/fuel the faster is goes the more fuel it needs as travel across the surface of earth with only the wind to slow you down and gravity keeping and the ship on grounded, but you can travel in a submarine which is flying in density that rises pressure further down but keeps up against the pull of gravity
The air on the other hand is lighter and less dense the further up in sky this means that movement requires a plane to have wings to lift and control the craft which no matter how strong the engines and fuel is speed but it can only go one-way at any time
Unlike a helicopter by using a big rotor and a little horizontal one for control they can rise above the ground and move with ease although not extremely fast nor slow but dependent on fuel
A blimps in principle an anti submarine since its flying through a medium of air instead of water like a plane which uses a propeller to take off and overcome gravity an Airship uses the same principals of a sub but the pressure of lighter then are gases against outside air keep the airship aloft with little energy expenditure but they tend to move slow and are hard to maneuver
i say combine them all and you to can make a UFO
All this is time traveling in away since your saving time in moving somewhere about the sphere of the earth and its bs time zones
a tower will observe that clocks at ground level tick slower, and observers on the ground will agree about the direction and the ratio of the difference. There is not full agreement, as all the observers make their own local clocks out to be correct, but the direction and ratio of gravitational time dilation is agreed by all observers, independent of their altitude.(remember if you put a clock on the bottom of the ocean 1 on the surface and then 1 on a mountain plus another in orbit going away as well
These clocks would keeping time at different speeds The closer to a significant gravitational mass the more pull it has on anything in relation to something further away, but the clock in the ocean would appear to slow down to an observer at the top which isn't because time has slowed but the clocks is now moving faster relative to thoughts above but the clock itself is moving faster in time to the surface clock that stays the same at any equal surface point of earth the 2 elevated clocks on the mountain and in orbit time to them would cause the clocks to appear to speed up to the surface clock observer this to the clock is actually because less gravity= your time slowing down your time the further one becomes from the surface(SGM) compared to the other clocks this would from the surface observer to look and see the clock not going fast but actually see the clock appear to slow down as i gets farther away
"Time is the fire in which we burn." I love this quote and thought it fit nicely with you saying, "The most valuable thing i know is Time." (sorry, I couldn't resist lol)
"Unlike a helicopter by using a big rotor and a little horizontal one for control they can rise above the ground and move with ease although not extremely fast nor slow but dependent on fuel."
-While helicopters and planes rely on fuel for combustion, the ability to obtain Lift and Flight rests with the main rotor disc, while the tail rotor is responsible for off-setting the torque created by the main rotor disc, or yaw. (The helicopter naturally wants to move in the direction opposite the main rotor is travelling). The helicopter's collective controls the pitch of the blades, which also controls its speed. For a helicopter, it's all about the lift that the main rotor disc produces. Without de-icing equipment, the blades will lose the ability to produce lift and not fly. Environmental factors such as heat and cold will also effect the helicopter's ability to produce/create lift. On extremely hot days, when the helicopter is carrying a full fuel tank it may not even want to get off the ground, vice versa, it flies extremely well when temperatures are cooler.
While I may not have the best grasp of interstellar physics and propulsion, I do fly on helicopters for a living so I thought I might contribute to your post.Thanks for posting and keep it coming!!
Even if we could figure out a way to build that warp drive to travel faster than light, finding a power source with more energy than 10 times the mass of the entire observable universe might be a problem, don't you think?
Now, for a macroscopically useful warp drive, one might want the radius of the Warp-Drive Bubble to be at least 100 meters so that a space ship could fit inside. The authors calculate that for a bubble radius of 100 meters, the required amount of negative energy to create the warp drive bubble is ten orders of magnitude greater than the total mass of the observable universe.
I don't think you understand the article.
Originally posted by bodcausailor
reply to post by Arbitrageur
Power souce is an element not naturally occurring on this planet.
Originally posted by Aliensun
It does not take an Einstein to understand clearly what method that UFOs, thus, their deep space vehicles, use to putt-putt about the stars. The UFOs give every evidence of cancelling the entire mass of the ship. No one needs to be a genius to see a UFO make instant stops, starts and changes of direction to see that such maneuvers are impossible without having that feature. It is as simple as that.
Originally posted by Cosmic911
I thought there might be some intellectuals in this forum so I pose this question here. I have only a limited grasp of physics so I can't answer this question. Please help!
How many types of propulsion would a UFO travelling through space and entering Earth's atmosphere require? If they utilize anti-gravity propulsion for atmospheric travel, would anti-gravity work in the vaccuum of space? Would an anti-gravity propulsion-driven craft work in space? Is space devoid of gravity? How would it work? Is gravity limited to celestial bodies like planets, because of magnetic fields?
Please & thank you!