Name: 你在宇宙中移動的速度有多快？ (How Fast Are You Moving Through The Universe?)
Uploaded: 2021-01-14T05:24:25.000Z
Duration: 5 min 8 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

The  other day I did this video about time dilation, or the idea that time is relative to your

current speed, but that got me to thinking: there's no such thing as not moving!

情態助動詞 B1

You might think you're just sitting there, watching this video, maybe you're in a car,

on a train or even on an airplane. But even if you were at home on your couch trying to

be as still as possible, you're still traveling XXX,XXX miles per SECOND. EVERY SECOND. Sit

still and think about that for a second…

The question “how fast are we moving?” is FAR more difficult to answer than I thought

because there are so many moving parts -- literally… pun intended. So, let's go through each level

of motion and then add it all up at the end.

Starting small, you're not moving. Just to keep it simple, you're standing still on the

equator. As the Earth rotates, the equator is going the fastest, and the poles are going

slowest. If you were standing right on the north pole, you'd simply rotate once every

day, but on the equator, you're going about 1,000 miles per hour (1600km) in a circle,

every day. You don't feel it, for the same reason you aren't stuck in your seat while

a plane is flying, speed is relative, you only feel it when it changes. So anyway, you're

The Earth is traveling around the sun, once per year. It's a trip of 584 million miles

(942 M km) to get the sun back to the exact same point in the sky. That means, the whole

planet is flying at 66,667 mph (107k kph) AS A PLANET! Then, zooming out further, we

are ALL tied to the movement of the sun. The sun is flying through the galaxy with all

of us planets tucked into its gravity. Scientists determined, the sun is moving toward other

stars at around 45,000 miles per hour (72,420kph) but we're ALSO moving "up" relative to our

galactic disc at about 15,700 miles per hour (25.2k kph). We're not going to fly out of

the galaxy, the gravity of all those other stars is going to slow us down and pull us

back in over the next 14 million years. AND since we're about halfway out of the center

of the Milky Way, and as far as we can tell the galaxy rotates once every 200 to 250 million

years; we're moving approximately 550,000 miles per hour AS A SOLAR SYSTEM.

We're not done yet either! You, the planet, the solar system and… The MIlky Way. Our

galaxy is heading toward the Andromeda galaxy at a pretty good clip. Numbers vary, a recent

2013 Space.com[a] piece clocked it at 252,000 miles per hour. Again, with the three dimensional

thinking, the Milky Way is ALSO moving toward the constellation Hydra at about 1,342,000

mph (216M kph) and toward Virgo at like half that. So overall the Milky Way MIGHT be traveling

Another sidebar: the further away from YOU that you get, the more difficult it gets to

measure your speed. The reason we use constellations and other galaxies is the same reason we use

trees or mountains here on Earth to gauge distance. They're large and far enough away

that they become a point of reference. We can measure our SPEED relative to theirs,

but of course, all the stars and galaxies in Andromeda -- like a mountain -- are moving,

Andromeda is moving, the stars of the constellation Hydra -- like the tree -- is moving… EVERYTHING

AND the whole universe might be moving. Yep. The whole damn thing. I can get into that

if you want! Lemme know with a like and if we get to 10,000, we'll come back to it. It's

Now, to the MATHS!! Your 1,000 mph, plus Earth's 66,667 mph, plus our system's 550,000 mph,

plus the galaxy's 2,237,000 miles per hour equals = about 2,855,000 miles per hour or

about 800 miles every second. Think about that. That's mind-boggling, and incredible.

The reason you're not clinging to the ground in fright is because again, speed is relative.

YOu're not feeling it because we're all on this supersonic jet together. Us, and all

How does all this make you feel? Small? Tiny? Insignificant?! Or super amazing and important!

There's WAY more to this than this simple video is going to explore, but if you're like

me, this video gave you some feels. Express yourself! Go on!

We'd like to take a moment to thank Subaru making this big thinking video possible and

Especially the all-new 2015 Subaru Legacy. Every sedan has its benefits, but only one

combines them all. It’s not just a sedan. It’s a Subaru.

http://www.astrosociety.org/edu/publications/tnl/71/howfast.html http://www.brainstuffshow.com/blog/good-question-how-fast-are-you-moving-through-the-universe-right-now/

how fast milky way http://hypertextbook.com/facts/1999/PatriciaKong.shtml

how fast earth http://www.livescience.com/32294-how-fast-does-earth-move.html

http://www.universetoday.com/26623/how-fast-does-the-earth-rotate/

relative speed http://ed.ted.com/lessons/how-fast-are-you-moving-right-now-tucker-hiatt

space.com http://www.space.com/19915-milky-way-galaxy.html

universe expanding http://map.gsfc.nasa.gov/universe/uni_expansion.html

http://www.space.com/17884-universe-expansion-speed-hubble-constant.html

sun moving http://solar-center.stanford.edu/FAQ/Qsolsysspeed.html

[SUBARU BILLBOARD- Use Trace’s read from Dnews-091914-Time-Dilation-YT]

(TRACE) The other day I did this video about time

dilation, or the idea that time is relative to your current speed, but that got me to

thinking: there's no such thing as not moving! [[DNEWS OPEN]]

on a train or even on an airplane. But even if you were

[VO: image 167449679] at home on your couch trying to be as still

as possible, you're still traveling XXX,XXX miles per SECOND. EVERY SECOND. Sit still

[VO: DA video 80801014_t022] As the Earth rotates,

*add arrow pointing to the equator* the equator is going the fastest,

[Cut to @ 0:04] and the poles are going slowest. If you were

standing right on the north pole, you'd simply rotate once every day, but on the equator,

you're going about [TEXT ON SCREEN: 1600 km/hr ]

1,000 miles per hour (1600km) in a circle, every day. You don't feel it, for the same

reason [VO: DA video 8088762_013_m @ 0:13]

you aren't stuck in your seat while a plane is flying, speed is relative, you only feel

it when it changes. So anyway, you're already going 1,000 MPH AS A PERSON.

[VO: videoblocks 37007-8] The Earth is traveling around the sun, once

per year. It's a trip of [TEXT ON SCREEN: 942M km]

584 million miles (942 M km) to get the sun back to the exact same point in the sky. That

means, the whole planet is flying at [TEXT ON SCREEN: 107,000 kph]

66,667 mph (107k kph) AS A PLANET! Then, zooming out further, we are ALL tied to the movement

[VO: DA video 808055_033_m @ 0:12] The sun is flying through the galaxy with

all of us planets tucked into its gravity. Scientists determined, the sun is moving toward

other stars at around [TEXT ON SCREEN: 72,420 kph ]