[NYG]

Originally Posted by owenscj21

If you were on a train travelling at the speed of light and walked from the back to the front of the train, are you travelling faster than the speed of light?

Frame of reference, observer, etc...

[tranquility]

Originally Posted by dreamingat30fps

Yes, except your ass is always being pushed into the seat by gravity. So while I have no idea how the effects of magic gravity on a ship would differentiate from earths gravity on a plane... I would imagine the effects are similar.

Ok, so we're talking or not talking about the same topic? It's just like sitting on your couch in your tv room, I don't feel any (additional?) 'push' that you mention...everything is moving at the same speed, to say there's a 'push' means something is at odds w another, right?

Re the airplane example, you're actually going faster than the plane if walking up the aisle and slower by walking down. At least that's what I remember the teacher saying from high school physics.

[BMWILUVU]

Originally Posted by owenscj21

If you were on a train travelling at the speed of light and walked from the back to the front of the train, are you travelling faster than the speed of light?

According to Einstein, no.

[wtwo3]

What happens when an unstoppable force collides with an immovable object

[leopard print]

Originally Posted by wtwo3

What happens when an unstoppable force collides with an immovable object

Is there such a thing as a truly unstoppable force or immovable object? Or does everything have some kind of limit?

[tranquility]

Originally Posted by BMWILUVU

According to Einstein, no.

According to my old physics teacher, yes.

[owenscj21]

Originally Posted by BMWILUVU

According to Einstein, no.

If an electric train is travelling north and the wind is blowing south, in which direction will the engine exhaust blow?

[///d]

Originally Posted by owenscj21

If an electric train is travelling north and the wind is blowing south, in which direction will the engine exhaust blow?

Same direction that the egg rolls off the roof that the rooster laid

[///d]

This all reminds me of the plane on a treadmill debate

[dreamingat30fps]

Originally Posted by tranquility

Ok, so we're talking or not talking about the same topic? It's just like sitting on your couch in your tv room, I don't feel any (additional?) 'push' that you mention...everything is moving at the same speed, to say there's a 'push' means something is at odds w another, right?

Re the airplane example, you're actually going faster than the plane if walking up the aisle and slower by walking down. At least that's what I remember the teacher saying from high school physics.

I was just saying you are technically always being pulled down by gravity (at least on earth).

[tranquility]

Originally Posted by dreamingat30fps

I was just saying you are technically always being pulled down by gravity (at least on earth).

Yup, for sure, I'm just wondering about our plane example as I was trying to explain I don't feel anything different from sitting in my living room.

[NYG]

Originally Posted by tranquility

Ok, so we're talking or not talking about the same topic? It's just like sitting on your couch in your tv room, I don't feel any (additional?) 'push' that you mention...everything is moving at the same speed, to say there's a 'push' means something is at odds w another, right?

Re the airplane example, you're actually going faster than the plane if walking up the aisle and slower by walking down. At least that's what I remember the teacher saying from high school physics.

You don't feel motion but there is an equal and opposite force (push) that is keeping you static.

There is an inertial and a non-inertial frame of reference that is applicable in different cases. Things start to make more sense and open your mind when you start looking at things from an inertial frame of reference.

Originally Posted by wtwo3

What happens when an unstoppable force collides with an immovable object

Verstappen wins.

[Redd]

Originally Posted by owenscj21

If you were on a train travelling at the speed of light and walked from the back to the front of the train, are you travelling faster than the speed of light?

Both yes and no, depending on where the observer is. An observer inside the train would not see you as being faster than light. An observer outside the train would. Theory of Relativity.

Gravity is attractive force between two masses. Earth exerts gravity in our bodies because it is much more massive than our body.

When you accelerate in a plane/spaceship, the force acting on your body has nothing to do with gravitational forces. Here the Law of Conservation of Momentum is at work. Because there is a force (thrust) accelerating the plane in one direction, there is an equal and opposite force pushing you back into your seat. Because the plane is much more massive than your body, the force acting on your body is proportionally higher. The confusion occurs because in flight terms, they refer to the force acting on your body as a 'g', whereby 'g' has the value of gravitational force. It is not caused by gravity.

Now let's take a stab at your spaceship question. Without artificial gravity/magnetic boots or some sort of method to negate the Law of Conservation of Momentum, every time the USS Enterprise went to warp speed, the crew would end up as red smears on the back wall of the ship. It's TV. If you want better examples of space flight/combat physics from TV, watch The Expanse (highly highly recommend it!).

Anyway that's my 2 cents based on high school physics learnt 30 years ago. Lol.

[Frostynorth]

Gravity is the warping of space by objects with huge mass. The warping of this space causes gravity. Space is pushing you down. (General relativity)

[3.0L]

Originally Posted by owenscj21

If an electric train is travelling north and the wind is blowing south, in which direction will the engine exhaust blow?

Originally Posted by ///d

Same direction that the egg rolls off the roof that the rooster laid

Is a fly buzzing around inside the cabin adding to the weight of the airplane?

[Rono63]

You would definitely feel it, I have seen many episodes of Star Trek where they were thrown about the ship.

[JAI///M3]

Uhh

[kscarrol]

Just a bunch of amateur astrophysicists who all stayed at a Holiday Inn Express last night…

[BMWILUVU]

Originally Posted by owenscj21

If an electric train is travelling north and the wind is blowing south, in which direction will the engine exhaust blow?

According to Einstein, no.

[BMWILUVU]

Originally Posted by Rono63

You would definitely feel it, I have seen many episodes of Star Trek where they were thrown about the ship.

Compare the federation insignia vs US Space Force insignia.

[Mason Hatcher]

Inertial dampers. Any ship capable of generating artificial gravity would have them.

Official Star Trek nerd here.

[Maynard]

You'll feel it, but you'll also complain that it isn't as direct and engaging as your old E46 M3 used to be.