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Originally posted by weedwhacker
Do you know anything about satellite TV? Do you know how it works? Antennas, on Earth, point to satellites in orbit. The satellites must be in GEOSTATIONARY orbit.....they seem to stay fixed, in one place in the sky, when viewed from down here (otherwise, the dish antennae would have to move to track them...hopelessly complicated and unworkable, for consumer TV needs).
Originally posted by weedwhacker
So, put a camera on one of THOSE Sats...and, the view in that video is what you will see......the Sat is moving, "hovering" directly above one spot on the ground....over the Equator, to be exact.
Originally posted by weedwhacker
Guess, maybe, didn't notice the video of Earth filmed by the Galileo spacecraft??:
Yours look TOTALLY fake and superedited...
Explanation: When passing Earth on your way to Jupiter, what should you look for? That question arose for the robotic Galileo spacecraft that soundlessly coasted past the Solar System's most photographed orb almost two decades ago. The Galileo spacecraft, although originally launched from Earth, coasted past its home world twice in an effort to gain speed and shorten the duration of its trip to Jupiter. During Galileo's first Earth flyby in late 1990, it made a majestically silent home movie of our big blue marble rotating by taking images almost every minute during a 25-hour period. The above picture is one frame from this movie -- clicking on this frame will put it in motion (in many browsers). ...
Are you saying that satellites arn't travelling through space at 70,000kmph relative to the sun...
Originally posted by weedwhacker
Relative to the Sun....everything orbiting the Earth (whether man-made, or natural) are moving at the same speed, relative to the Sun, as the Earth (allowing for very, very tiny differences, of course. Such as, in example, when you are on a moving train. It is going forward @ 100 KPH, say. You walk at 3 KPH in direction of train motion, then relative to a person outside watching, you are moving @103 KPH. Reverse, if you turn 'round and walk back). From YOUR point-of-view, you are either standing/sitting still, or walking relative to the train itself. Big difference is you are also ON the train, not above it, and affected by its gravitational attraction. A satellite MUST move, or else it will fall directly straight back to Earth. In fact, an orbit IS "falling"...just, the path of the fall happens to keep missing the Earth's surface, due to the planet being a globe.
Also, the Earth is faster than 70,000 KPH. It is just under 30 Km per second. Or, about 108,000 KPH. Relative to the Sun...but, the Sun is moving too....within the Galaxy, and the Galaxy is moving to, relative to other galaxies....this gets harder and harder to define, though....there is no "fixed" reference point in the Universe.
Originally posted by weedwhacker
Now....if you wished to "brain exercise" it, as the Moon, for example orbits the Earth....when its orbit takes it on a side where it is moving, on its orbit, in the same direction the Earth is also moving, while travelling around the Sun...then the Moon is a bit faster, relative to the Sun...and vice versa when "retro-grade". But, this tiny extra relative speed, to the Sun, is not enough for the Sun to then "capture" the Moon, and have it then independently orbit the Sun. The Earth's gravitational influence is far, far more powerful...due to proximity and distance.
This is a 3-minute excerpt from a longer video (below) from NASA that, while dry ant not very exciting, is nonetheless very educational:
Basics of Kepler's Three Laws of Orbital Motion
Originally posted by weedwhacker
The long version, gets complicated and technical in parts. But, has a nice animation to explain WHY and how something will orbit the planet, without falling back and landing on the ground again
Originally posted by chan_chap
NO EXPERIMENTS HAS EVER PROVEN THAT THE EARTH IS MOVING!!!!!!!
Originally posted by ArmorOfGod
And when you figure in that it also must be zooming along at the same speed that this galaxy is supposed to be moving away from the bigbang....is it about half a million klicks?...well....it all gets very complicated...like you said. And still not even a flicker on the camera, and everything looks perfectly still. Odd.
Or we can just trust our senses and say everything is stationary. Which is much simpler, and lines up with real science, and observation........and the bible.
I dont suppose you could summarise it in laymans terms. I have a very slow connection and I'm not much of a science expert. How does gravity dictate orbits, in simple terms? It's a one way force no?
Originally posted by Aloysius the Gaul
Originally posted by chan_chap
NO EXPERIMENTS HAS EVER PROVEN THAT THE EARTH IS MOVING!!!!!!!
Except for all these??
curious.astro.cornell.edu...
Originally posted by Aloysius the Gaul
no - what is odd is that anyone would think it is odd.
Ever been in a car driving at 60mph/100kph with a bunch of other cars doing the same speed alongside and/or in front and behind you?
Ever walked beside someone and kept pace with them?
Originally posted by Aloysius the Gaul
Where does the bible say the Earth doesn't orbit the sun?
Originally posted by Aloysius the Gaul
Gravity sucks objects towards the central body (whether it be the earth, sun, galactic centre or whatever), but their straight line motion makes them try to fly away tangentially.
Where the 2 forces are in balance they orbit. If the 2 forces do not balance they change their distance until they either do balance or one of them becomes too small to have any effect and the other "rules" - ie either the objct flies off (gravity is too small), or it descends to the surface of the central object if the tangential "force" is too small.
Simple enough yet?
Originally posted by weedwhacker
(To repeat, for those who are blind....Aberration uses the FIXED speed of light, as a very accurate measurent of distance differences, as the Earth moves on orbit...AND as the entire Solar System moves, to a lesser degree. Parallax measures changes in the ANGLES measured. To a very, very precise and fine degree, in both cases. It is called "science".)
Originally posted by weedwhacker
Did you tell him about the Foucault Pendulum???:
Originally posted by weedwhacker
AND, of course....merely to prove the Earth is rotating, is Coriolis Effect