[Script Info]
Title: 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:01.65,0:00:06.53,Default,,0000,0000,0000,,In this video i want to talk a little bit about Newton's first law of motion
Dialogue: 0,0:00:06.53,0:00:11.36,Default,,0000,0000,0000,,This is a translation from Newton's principia from latin into english
Dialogue: 0,0:00:11.36,0:00:13.49,Default,,0000,0000,0000,,So the first law
Dialogue: 0,0:00:13.49,0:00:16.18,Default,,0000,0000,0000,,every body persists in its state of being at rest
Dialogue: 0,0:00:16.18,0:00:22.08,Default,,0000,0000,0000,,or moving uniformly straight forward
Dialogue: 0,0:00:22.08,0:00:26.17,Default,,0000,0000,0000,,except insofar as it is complled to change its state by force impressed
Dialogue: 0,0:00:26.17,0:00:30.86,Default,,0000,0000,0000,,so another way to rephrase what theyre saying
Dialogue: 0,0:00:30.86,0:00:34.11,Default,,0000,0000,0000,,is that if theres something, every body persists
Dialogue: 0,0:00:34.11,0:00:41.91,Default,,0000,0000,0000,,so everything will stay at rest or moving at constant velocity unless it is compelled to change its state
Dialogue: 0,0:00:41.91,0:00:43.49,Default,,0000,0000,0000,,by force
Dialogue: 0,0:00:43.49,0:00:46.00,Default,,0000,0000,0000,,unless its acted on by a force, especially an unbalanced force
Dialogue: 0,0:00:46.00,0:00:47.76,Default,,0000,0000,0000,,and ill explain that in a second
Dialogue: 0,0:00:47.76,0:00:51.43,Default,,0000,0000,0000,,so completely at rest
Dialogue: 0,0:00:51.43,0:00:56.17,Default,,0000,0000,0000,,so i have a, this is something we've seen before
Dialogue: 0,0:00:56.17,0:00:58.77,Default,,0000,0000,0000,,so i have a, let's say that i have a rock
Dialogue: 0,0:00:58.77,0:01:02.02,Default,,0000,0000,0000,,someplace
Dialogue: 0,0:01:02.02,0:01:06.11,Default,,0000,0000,0000,,and its layuing on a field of grass
Dialogue: 0,0:01:06.11,0:01:10.19,Default,,0000,0000,0000,,on a field of grass, and i can keep observing that rock
Dialogue: 0,0:01:10.19,0:01:13.82,Default,,0000,0000,0000,,and it is unlikely to move assuming that nothing happens to it
Dialogue: 0,0:01:13.82,0:01:17.48,Default,,0000,0000,0000,,theres no force applied to that rock, that rock will just stay there
Dialogue: 0,0:01:17.48,0:01:20.18,Default,,0000,0000,0000,,so ther first part is pretty obvious
Dialogue: 0,0:01:20.18,0:01:24.36,Default,,0000,0000,0000,,if a body, "every body persists in a state of being at rest"
Dialogue: 0,0:01:24.36,0:01:26.45,Default,,0000,0000,0000,,im not gonna do the second part
Dialogue: 0,0:01:26.45,0:01:28.44,Default,,0000,0000,0000,,except insofar there is a force being applied to it
Dialogue: 0,0:01:28.44,0:01:31.18,Default,,0000,0000,0000,,so clearly a rock will be at rest
Dialogue: 0,0:01:31.18,0:01:33.83,Default,,0000,0000,0000,,unless theres some force applied to it
Dialogue: 0,0:01:33.83,0:01:40.47,Default,,0000,0000,0000,,what's less intuitive about the first law is the second part
Dialogue: 0,0:01:40.47,0:01:49.16,Default,,0000,0000,0000,,"every body persists in either being at rest or moving uniformly straight forward"
Dialogue: 0,0:01:49.16,0:01:53.43,Default,,0000,0000,0000,,except insofar it is compelled to change its state by force impressed
Dialogue: 0,0:01:53.43,0:01:56.50,Default,,0000,0000,0000,,so this Newton's law
Dialogue: 0,0:01:56.50,0:01:58.03,Default,,0000,0000,0000,,and i think i should do a little side here
Dialogue: 0,0:01:58.03,0:02:01.18,Default,,0000,0000,0000,,this right here is newton
Dialogue: 0,0:02:01.18,0:02:03.18,Default,,0000,0000,0000,,and if this is newtons first law
Dialogue: 0,0:02:03.18,0:02:05.41,Default,,0000,0000,0000,,why do i have this huge picture of this guy over here?
Dialogue: 0,0:02:05.41,0:02:07.50,Default,,0000,0000,0000,,well the reason is because Newton's first law is
Dialogue: 0,0:02:07.50,0:02:10.75,Default,,0000,0000,0000,,really just a restatement of this guy's law of inertia
Dialogue: 0,0:02:10.75,0:02:14.84,Default,,0000,0000,0000,,and this guy, another titan of civilization really,
Dialogue: 0,0:02:14.84,0:02:18.18,Default,,0000,0000,0000,,is Galileo Galilei
Dialogue: 0,0:02:18.18,0:02:23.01,Default,,0000,0000,0000,,and he is the first person to formulate the law of inertia
Dialogue: 0,0:02:23.01,0:02:27.19,Default,,0000,0000,0000,,and newton just rephrased it a little bit
Dialogue: 0,0:02:27.19,0:02:33.69,Default,,0000,0000,0000,,and packaged it with his other laws
Dialogue: 0,0:02:33.69,0:02:35.18,Default,,0000,0000,0000,,but he did many many other things
Dialogue: 0,0:02:35.18,0:02:37.20,Default,,0000,0000,0000,,so you really have to give galileo credit for newtons first law
Dialogue: 0,0:02:37.20,0:02:40.19,Default,,0000,0000,0000,,but i was in the mist of a thought
Dialogue: 0,0:02:40.19,0:02:41.82,Default,,0000,0000,0000,,so we understand
Dialogue: 0,0:02:41.82,0:02:43.82,Default,,0000,0000,0000,,if something is at rest, it will stay at rest
Dialogue: 0,0:02:43.82,0:02:46.09,Default,,0000,0000,0000,,unless theres some force that acts on it
Dialogue: 0,0:02:46.09,0:02:47.49,Default,,0000,0000,0000,,and in some definitions you'll see if theres some unbalanced force
Dialogue: 0,0:02:47.49,0:02:49.85,Default,,0000,0000,0000,,and the reason that they say unbalanced is that
Dialogue: 0,0:02:49.85,0:02:51.85,Default,,0000,0000,0000,,if you have two forces that act on something
Dialogue: 0,0:02:51.85,0:02:53.85,Default,,0000,0000,0000,,they might balance out
Dialogue: 0,0:02:53.85,0:02:55.52,Default,,0000,0000,0000,,for example, i could push on this side of the rock
Dialogue: 0,0:02:55.52,0:02:58.03,Default,,0000,0000,0000,,with a certain amount of force
Dialogue: 0,0:02:58.03,0:03:00.02,Default,,0000,0000,0000,,and if you push on this side of the rock with the exact
Dialogue: 0,0:03:00.02,0:03:02.16,Default,,0000,0000,0000,,same amount of force
Dialogue: 0,0:03:02.16,0:03:03.18,Default,,0000,0000,0000,,the rock wont move
Dialogue: 0,0:03:03.18,0:03:04.85,Default,,0000,0000,0000,,and the only way it will move is
Dialogue: 0,0:03:04.85,0:03:07.08,Default,,0000,0000,0000,,if theres a lot more force on one side than on the other side
Dialogue: 0,0:03:07.08,0:03:09.17,Default,,0000,0000,0000,,so if you have an unbalanced force
Dialogue: 0,0:03:09.17,0:03:10.75,Default,,0000,0000,0000,,so if you have a ton of
Dialogue: 0,0:03:10.75,0:03:12.19,Default,,0000,0000,0000,,and maybe the rock is a bad analogy
Dialogue: 0,0:03:12.19,0:03:13.87,Default,,0000,0000,0000,,lets take ice, cuz ice is easier to move
Dialogue: 0,0:03:13.87,0:03:15.49,Default,,0000,0000,0000,,ice on ice
Dialogue: 0,0:03:15.49,0:03:17.16,Default,,0000,0000,0000,,so theres ice right here
Dialogue: 0,0:03:17.16,0:03:19.16,Default,,0000,0000,0000,,and i have another block of ice sitting on top of that ice
Dialogue: 0,0:03:19.16,0:03:22.69,Default,,0000,0000,0000,,so once again, we're familiar with the idea
Dialogue: 0,0:03:22.69,0:03:24.87,Default,,0000,0000,0000,,that is theres no force acting on it
Dialogue: 0,0:03:24.87,0:03:28.17,Default,,0000,0000,0000,,the ice wont move
Dialogue: 0,0:03:28.17,0:03:30.16,Default,,0000,0000,0000,,but what happens if i have if im pushing on the ice with
Dialogue: 0,0:03:30.16,0:03:32.86,Default,,0000,0000,0000,,a certain amount of force on that side and you're pushing on the ice
Dialogue: 0,0:03:32.86,0:03:34.53,Default,,0000,0000,0000,,on that side with the same amount of force
Dialogue: 0,0:03:34.53,0:03:37.18,Default,,0000,0000,0000,,the ice will still not move
Dialogue: 0,0:03:37.18,0:03:39.36,Default,,0000,0000,0000,,so this right here would be a balanced force
Dialogue: 0,0:03:39.36,0:03:41.87,Default,,0000,0000,0000,,a balanced force
Dialogue: 0,0:03:41.87,0:03:45.53,Default,,0000,0000,0000,,so the only way for the ice to change its condition
Dialogue: 0,0:03:45.53,0:03:49.16,Default,,0000,0000,0000,,to change its restful condition
Dialogue: 0,0:03:49.16,0:03:51.85,Default,,0000,0000,0000,,is if the force is unbalanced
Dialogue: 0,0:03:51.85,0:03:55.52,Default,,0000,0000,0000,,so if we add a little bit of force on this side
Dialogue: 0,0:03:55.52,0:03:58.03,Default,,0000,0000,0000,,so it more than compensates the force pushing it this way
Dialogue: 0,0:03:58.03,0:04:01.19,Default,,0000,0000,0000,,then youre going to see the ice block start to really accelerate
Dialogue: 0,0:04:01.19,0:04:04.53,Default,,0000,0000,0000,,in that direction
Dialogue: 0,0:04:04.53,0:04:07.69,Default,,0000,0000,0000,,but i think this part is obvious
Dialogue: 0,0:04:07.69,0:04:09.17,Default,,0000,0000,0000,,something that is in rest will stay at rest
Dialogue: 0,0:04:09.17,0:04:11.36,Default,,0000,0000,0000,,unless it is being acted on by an unbalanced force
Dialogue: 0,0:04:11.36,0:04:14.19,Default,,0000,0000,0000,,what's less obvious is the idea that
Dialogue: 0,0:04:14.19,0:04:16.74,Default,,0000,0000,0000,,something moving uniformly straight forward
Dialogue: 0,0:04:16.74,0:04:19.86,Default,,0000,0000,0000,,which is another way of saying something has a constant velocity
Dialogue: 0,0:04:19.86,0:04:21.87,Default,,0000,0000,0000,,constant velocity
Dialogue: 0,0:04:21.87,0:04:24.47,Default,,0000,0000,0000,,what he's saying is is that something
Dialogue: 0,0:04:24.47,0:04:26.17,Default,,0000,0000,0000,,that has a constant velocity
Dialogue: 0,0:04:26.17,0:04:28.77,Default,,0000,0000,0000,,will continue to have that constant velocity indefinately
Dialogue: 0,0:04:28.77,0:04:31.42,Default,,0000,0000,0000,,unless it is acted on by an unbalanced force
Dialogue: 0,0:04:31.42,0:04:35.69,Default,,0000,0000,0000,,and that is less intuitive
Dialogue: 0,0:04:35.69,0:04:38.10,Default,,0000,0000,0000,,because everything in our human experience
Dialogue: 0,0:04:38.10,0:04:41.82,Default,,0000,0000,0000,,even if i were to push this block of ice
Dialogue: 0,0:04:41.82,0:04:44.10,Default,,0000,0000,0000,,eventually it will stop
Dialogue: 0,0:04:44.10,0:04:46.19,Default,,0000,0000,0000,,it wont just keep going forever
Dialogue: 0,0:04:46.19,0:04:48.18,Default,,0000,0000,0000,,even assuming this ice field is infinitely long
Dialogue: 0,0:04:48.18,0:04:50.23,Default,,0000,0000,0000,,that ice will eventually stop
Dialogue: 0,0:04:50.23,0:04:53.85,Default,,0000,0000,0000,,or if i throw a tennis ball
Dialogue: 0,0:04:53.85,0:04:55.93,Default,,0000,0000,0000,,that tennis ball will eventually stop
Dialogue: 0,0:04:55.93,0:05:01.20,Default,,0000,0000,0000,,even if it doesnt, it will eventually grind to a half
Dialogue: 0,0:05:01.20,0:05:03.93,Default,,0000,0000,0000,,or if i roll a bowling ball, or if i, anything
Dialogue: 0,0:05:03.93,0:05:06.85,Default,,0000,0000,0000,,we've never seen, in our human experience
Dialogue: 0,0:05:06.85,0:05:09.50,Default,,0000,0000,0000,,it looks like everything will eventually stop
Dialogue: 0,0:05:09.50,0:05:12.10,Default,,0000,0000,0000,,so this is a very unintuitive thing to say that something
Dialogue: 0,0:05:12.10,0:05:13.93,Default,,0000,0000,0000,,in motion will just keep going in motion indefinitely
Dialogue: 0,0:05:13.93,0:05:17.86,Default,,0000,0000,0000,,everything in human intuition says that if you want
Dialogue: 0,0:05:17.86,0:05:20.69,Default,,0000,0000,0000,,something to keep going in motion, you have to keep putting more force
Dialogue: 0,0:05:20.69,0:05:23.20,Default,,0000,0000,0000,,more energy
Dialogue: 0,0:05:23.20,0:05:24.82,Default,,0000,0000,0000,,into it
Dialogue: 0,0:05:24.82,0:05:27.52,Default,,0000,0000,0000,,your car wont keep going forever, unless you keep, unless the engine
Dialogue: 0,0:05:27.52,0:05:30.13,Default,,0000,0000,0000,,keeps burning fuel and to drive and consuming energy
Dialogue: 0,0:05:30.13,0:05:33.42,Default,,0000,0000,0000,,all of these examples
Dialogue: 0,0:05:33.42,0:05:37.40,Default,,0000,0000,0000,,and i think this is actually a pretty brilliant insight
Dialogue: 0,0:05:37.40,0:05:39.17,Default,,0000,0000,0000,,from all of these fellows
Dialogue: 0,0:05:39.17,0:05:41.36,Default,,0000,0000,0000,,is that all of these things would have gone on forever
Dialogue: 0,0:05:41.36,0:05:43.49,Default,,0000,0000,0000,,the ball would have gone on forever
Dialogue: 0,0:05:43.49,0:05:45.40,Default,,0000,0000,0000,,this ice block would keep going on forever
Dialogue: 0,0:05:45.40,0:05:47.16,Default,,0000,0000,0000,,except for the fact that there are
Dialogue: 0,0:05:47.16,0:05:48.69,Default,,0000,0000,0000,,unbalanced forces
Dialogue: 0,0:05:48.69,0:05:50.78,Default,,0000,0000,0000,,acting on them to stop them
Dialogue: 0,0:05:50.78,0:05:52.32,Default,,0000,0000,0000,,so in the case of ice
Dialogue: 0,0:05:52.32,0:05:54.08,Default,,0000,0000,0000,,even though ice on ice doesnt have a lot of friction
Dialogue: 0,0:05:54.08,0:05:55.85,Default,,0000,0000,0000,,there is some friction between these two
Dialogue: 0,0:05:55.85,0:06:01.19,Default,,0000,0000,0000,,so in this case the force of friction is going to be acting against
Dialogue: 0,0:06:01.19,0:06:03.74,Default,,0000,0000,0000,,the direction of the movement of ice
Dialogue: 0,0:06:03.74,0:06:05.83,Default,,0000,0000,0000,,and friction really comes from
Dialogue: 0,0:06:05.83,0:06:07.27,Default,,0000,0000,0000,,at an atomic level
Dialogue: 0,0:06:07.27,0:06:11.93,Default,,0000,0000,0000,,if you have the water molecules in a lattice structure
Dialogue: 0,0:06:11.93,0:06:13.63,Default,,0000,0000,0000,,in the ice cube
Dialogue: 0,0:06:13.63,0:06:15.77,Default,,0000,0000,0000,,and then here the water molecules and the lattice structure
Dialogue: 0,0:06:15.77,0:06:20.41,Default,,0000,0000,0000,,on the ice sea of ice that its travelling on
Dialogue: 0,0:06:20.41,0:06:23.11,Default,,0000,0000,0000,,they do kind of bump and grind into each other
Dialogue: 0,0:06:23.11,0:06:24.68,Default,,0000,0000,0000,,although they are both smooth
Dialogue: 0,0:06:24.68,0:06:26.45,Default,,0000,0000,0000,,their imperfections they bump and grind
Dialogue: 0,0:06:26.45,0:06:28.49,Default,,0000,0000,0000,,they generate a little bit of heat
Dialogue: 0,0:06:28.49,0:06:31.47,Default,,0000,0000,0000,,and theyll essentially be working against the movement
Dialogue: 0,0:06:31.47,0:06:35.18,Default,,0000,0000,0000,,so theres a force of friction thats being applied to here
Dialogue: 0,0:06:35.18,0:06:36.85,Default,,0000,0000,0000,,and thats why stopping
Dialogue: 0,0:06:36.85,0:06:38.87,Default,,0000,0000,0000,,not only force of friction, you also have some air resistance
Dialogue: 0,0:06:38.87,0:06:41.78,Default,,0000,0000,0000,,the ice block is going to be bumping into all sorts of
Dialogue: 0,0:06:41.78,0:06:44.67,Default,,0000,0000,0000,,air particles, it might not be noticeable at first
Dialogue: 0,0:06:44.67,0:06:47.49,Default,,0000,0000,0000,,but its definately going to keep it from going
Dialogue: 0,0:06:47.49,0:06:49.16,Default,,0000,0000,0000,,on forever
Dialogue: 0,0:06:49.16,0:06:51.25,Default,,0000,0000,0000,,same thing with the ball being tossed to the air
Dialogue: 0,0:06:51.25,0:06:53.20,Default,,0000,0000,0000,,obviously at some point it hits the ground
Dialogue: 0,0:06:53.20,0:06:54.73,Default,,0000,0000,0000,,because of gravity
Dialogue: 0,0:06:54.73,0:06:56.50,Default,,0000,0000,0000,,so thats one force acting on it
Dialogue: 0,0:06:56.50,0:06:58.08,Default,,0000,0000,0000,,but even once it hits the ground,
Dialogue: 0,0:06:58.08,0:06:59.53,Default,,0000,0000,0000,,it doesnt keep rolling forever
Dialogue: 0,0:06:59.53,0:07:02.16,Default,,0000,0000,0000,,once again because of the friction
Dialogue: 0,0:07:02.16,0:07:02.77,Default,,0000,0000,0000,,because of the friction
Dialogue: 0,0:07:02.77,0:07:04.80,Default,,0000,0000,0000,,especially if theres grass here
Dialogue: 0,0:07:04.80,0:07:06.02,Default,,0000,0000,0000,,the grass is going to stop it from going
Dialogue: 0,0:07:06.02,0:07:07.50,Default,,0000,0000,0000,,and even while its in the air, its going to slow down
Dialogue: 0,0:07:07.50,0:07:09.80,Default,,0000,0000,0000,,its not going to have constant velocity, because you have all
Dialogue: 0,0:07:09.80,0:07:11.68,Default,,0000,0000,0000,,of these air particles
Dialogue: 0,0:07:11.68,0:07:13.17,Default,,0000,0000,0000,,that are going to bump into it
Dialogue: 0,0:07:13.17,0:07:15.82,Default,,0000,0000,0000,,and exert a force to slow it down
Dialogue: 0,0:07:15.82,0:07:20.51,Default,,0000,0000,0000,,so what is really brilliant about these guys is that they could imagine
Dialogue: 0,0:07:20.51,0:07:23.20,Default,,0000,0000,0000,,a reality where you didnt have gravity
Dialogue: 0,0:07:23.20,0:07:26.50,Default,,0000,0000,0000,,you didnt have air
Dialogue: 0,0:07:26.50,0:07:28.03,Default,,0000,0000,0000,,slowing things down
Dialogue: 0,0:07:28.03,0:07:31.74,Default,,0000,0000,0000,,and they could imagine that if in that reality something
Dialogue: 0,0:07:31.74,0:07:33.83,Default,,0000,0000,0000,,would just keep persisting in its motion
Dialogue: 0,0:07:33.83,0:07:37.18,Default,,0000,0000,0000,,and the reason why Galileo was good at thinking about that
Dialogue: 0,0:07:37.18,0:07:40.85,Default,,0000,0000,0000,,was that he studied the orbits of planets
Dialogue: 0,0:07:40.85,0:07:45.82,Default,,0000,0000,0000,,and he could, or he's probably theorized
Dialogue: 0,0:07:45.82,0:07:46.32,Default,,0000,0000,0000,,"maybe theres no air out there, maybe thats why these planets can just keep going"
Dialogue: 0,0:07:46.32,0:07:47.93,Default,,0000,0000,0000,,round and round in orbit, and their speed never slows down
Dialogue: 0,0:07:47.93,0:08:01.70,Default,,0000,0000,0000,,theres nothing in the space to actually slow them down
Dialogue: 0,0:08:01.70,0:08:04.33,Default,,0000,0000,0000,,so anyway
Dialogue: 0,0:08:04.33,0:08:06.11,Default,,0000,0000,0000,,hopefully you found that as fascinating as i do
Dialogue: 0,0:08:06.11,0:08:08.20,Default,,0000,0000,0000,,because on some level its super duper obvious
Dialogue: 0,0:08:08.20,0:08:10.27,Default,,0000,0000,0000,,but on another level its completely not obvious
Dialogue: 0,0:08:10.27,0:08:11.87,Default,,0000,0000,0000,,especially this moving uniformly straight forward
Dialogue: 0,0:08:11.87,0:08:13.77,Default,,0000,0000,0000,,and just to make the point clear
Dialogue: 0,0:08:13.77,0:08:16.51,Default,,0000,0000,0000,,if gravity disappeared and you had no air
Dialogue: 0,0:08:16.51,0:08:18.09,Default,,0000,0000,0000,,you throw a ball
Dialogue: 0,0:08:18.09,0:08:21.16,Default,,0000,0000,0000,,that ball would literally keep going in that direction forever
Dialogue: 0,0:08:21.16,0:08:24.08,Default,,0000,0000,0000,,unless some other unbalanced force acted to stop it
Dialogue: 0,0:08:24.08,0:08:27.75,Default,,0000,0000,0000,,and this is another example you might see in everyday life
Dialogue: 0,0:08:27.75,0:08:35.18,Default,,0000,0000,0000,,is if im in a airplane
Dialogue: 0,0:08:35.18,0:08:41.40,Default,,0000,0000,0000,,thats going at a completely constant velocity
Dialogue: 0,0:08:41.40,0:08:43.53,Default,,0000,0000,0000,,and theres absolutely no turbulence
Dialogue: 0,0:08:43.53,0:08:47.44,Default,,0000,0000,0000,,so if im sitting in the airplane right over here
Dialogue: 0,0:08:47.44,0:08:49.47,Default,,0000,0000,0000,,and there
Dialogue: 0,0:08:49.47,0:08:50.69,Default,,0000,0000,0000,,its going at a constant velocity
Dialogue: 0,0:08:50.69,0:08:52.50,Default,,0000,0000,0000,,completely smooth
Dialogue: 0,0:08:52.50,0:08:53.52,Default,,0000,0000,0000,,no turbulence
Dialogue: 0,0:08:53.52,0:08:55.75,Default,,0000,0000,0000,,theres really no way for me to tell whether
Dialogue: 0,0:08:55.75,0:08:57.43,Default,,0000,0000,0000,,that airplane is moving without looking our the window
Dialogue: 0,0:08:57.43,0:08:59.52,Default,,0000,0000,0000,,so assuming theres no windows on the airplane
Dialogue: 0,0:08:59.52,0:09:01.74,Default,,0000,0000,0000,,its going at a constant velocity
Dialogue: 0,0:09:01.74,0:09:03.42,Default,,0000,0000,0000,,and theres no turbulence
Dialogue: 0,0:09:03.42,0:09:06.62,Default,,0000,0000,0000,,lets say i cant hear the engines
Dialogue: 0,0:09:06.62,0:09:12.75,Default,,0000,0000,0000,,theres no way for me to sense the plane is moving
Dialogue: 0,0:09:12.75,0:09:14.80,Default,,0000,0000,0000,,because from my frame of reference
Dialogue: 0,0:09:14.80,0:09:17.35,Default,,0000,0000,0000,,it looks completely identical to if i was in the same plane that was resting on the ground
Dialogue: 0,0:09:17.35,0:09:23.20,Default,,0000,0000,0000,,thats its actually very intuitive
Dialogue: 0,0:09:23.20,0:09:25.01,Default,,0000,0000,0000,,that theyre similar states
Dialogue: 0,0:09:25.01,0:09:26.50,Default,,0000,0000,0000,,moving a constant velocity
Dialogue: 0,0:09:26.50,0:09:28.36,Default,,0000,0000,0000,,or being at rest
Dialogue: 0,0:09:28.36,0:09:30.35,Default,,0000,0000,0000,,you really cant tell
Dialogue: 0,0:09:30.35,0:09:31.84,Default,,0000,0000,0000,,whether youre one or other