Post by dukeOn Wed, 30 Aug 2017 18:39:23 -0700 (PDT), Atlatl Axolotl
Post by Atlatl AxolotlPost by TedOn Tue, 29 Aug 2017 13:41:52 -0700 (PDT), Atlatl Axolotl
Post by Atlatl AxolotlPost by TedPost by dukePost by TedPost by dukePost by TimPost by dukePost by TedA quick search revealed that Seth (nature bats last), whose knowledge of
physics is much greater than mine, had his own experiences with duke's
arrogant stupidity.
But how can a mechanical engineer not know anything about mechanics?
So tell us again. How does a satellite in stable velocity in earth orbit have
acceleration or deceleration???????????????
Any object travelling at a constant speed while changing direction is
accelerating, you fat moron. In case you didn't know satellites orbit
other objects and are therefore always changing direction and are
therefore accelerating, you putty brained lump of shit.
Gosh, and here I thought the satellite was circling the earth. Heeheehee.
You must have been one of teddie the fairy's students.
I recently explained centripetal acceleration to you, duke.
You screwed up.
No, I explained it correctly. It's basic mechanics, about which you
know nothing at all because you're a fraud.
What? Please don't tell me Duke said that a satellite in
Earth orbit isn't undergoing acceleration.
It's not. It's not changing altitude. It's not changing speed.
Acceleration is a vector quantity. Speed and direction.
It's quite common for moving objects to constant speed change and constant
direction and not have acceleration. You gobblers are eat up with goobers over
definitions.
I have absolutely no idea what "moving objects to constant speed change"
is supposed to mean. "To constant speed change"?
Why don't you give us some clearly defined examples instead?
How about here:
In any event:
"Artificial satellites are continually accelerating towards
the Earth."
-- http://www.bbc.co.uk/schools/gcsebitesize/science/triple_ocr_gateway/space_for_reflection/satellites_gravity_circular_motion/revision/4/
"a satellite is acted upon by the force of gravity and this
force does accelerate it towards the Earth. In the absence
of gravity a satellite would move in a straight line path
tangent to the Earth."
-- http://www.physicsclassroom.com/mmedia/vectors/sat.cfm
"The acceleration of the satellite would be directed towards
the center of the circle - towards the central body that it
is orbiting. And this acceleration is caused by a net force
that is directed inwards in the same direction as the
acceleration."
-- http://www.physicsclassroom.com/class/circles/Lesson-4/Circular-Motion-Principles-for-Satellites
"It does keep accelerating. Its velocity in the direction of
the object being orbited keeps increasing.
But this direction keeps changing. The reason the
satellite's total speed doesn't increase, at least in the
case of a circular orbit, is that while its velocity towards
the object increases, its tangential motion moves it forward
so that that direction is always perpendicular to the
direction of motion. Thus while the satellite is undergoing
constant acceleration, that acceleration is always
perpendicular to the direction of motion and the speed of
the object never changes."
-- https://physics.stackexchange.com/questions/122284/why-doesnt-an-orbiting-body-keep-accelerating
AtlAxo
Post by dukePost by Atlatl AxolotlThe
satellite is constantly changing direction. If it's not constantly
changing direction, then it's going in a straight line, and the people
who paid tens of millions of dollars to have it put in orbit are
going to be very very very upset.
Of course that's viewed from the usual inertial frame of reference,
the proverbial fixed stars. You are equally welcome to center
your axes at the non-inertial frame of reference, the satellite itself.
Which now means the entire universe is accelerating around the satellite.
Your choice ... but in the second case, you get to do the math.
Thus your acceleration is a misnomer in definitions. The universe is
accelerating around the satellite. Are you beginning to see your mistake?
Post by Atlatl AxolotlAtlAxo
Post by TedPost by Atlatl AxolotlIt certainly is -- constantly being accelerated toward the Earth's
center of mass. Forever falling.
And it damn well better be, otherwise some very
expensive hardware will suddenly start sailing off in a straight line
towards Alpha Centauri.
AA
the dukester, American-American
*****
Purpose of Life: To Know, love and serve God and to love your
neighbor as yourself and thus be happy with God in heaven.
*****
the dukester, American-American
*****
Purpose of Life: To Know, love and serve God and to love your
neighbor as yourself and thus be happy with God in heaven.
*****