What If The Moon Disappeared?
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- Опубліковано 19 лис 2014
- Without the moon, how would Earth's environment be affected? Would we survive?
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Oh hey there BrainStuff. I'm Lauren. And it's time you and I had a talk... about the moon.
I know we haven’t been there in a while, but… it’s pretty rad. We think that about 4.5 billion years ago, something the size of Mars crashed into Earth and ricocheted into space to form the Moon. It even took some of Earth’s mantle with it. So there’s ancient chunks of our planet merged with space stuff up there, just hanging out in orbit.
But even with all that, I’m not sure the moon gets all the credit it deserves. If it wasn’t there, things would be a lot different here on our little blue planet.
First, we'd see some pretty dramatic changes to the ocean. The moon is responsible for most of the effects of tides. Without it, the tides would only be a third of the size they are now. This is because the sun would account for the major gravitational pull affecting the altitude of the ocean. And while the sun is way bigger than the moon (like 400 times bigger), it is also much further away. So the tides it creates only have about 40% of the strength of our current lunar tides.
Surfing wouldn’t be the only thing that suffered. Lots of ecosystems rely on the motion and changes of the tides to sustain them. Plus, the moon holds a bulge of tidal water around Earth’s middle that would disperse without its gravity, changing coastlines around the world.
Also, did you know that the moon helps slow down the rotation of Earth? Yep, without it we wouldn't have 24-hour days. They'd be more like 6-8 hours long. We'd have to remake our calendar to accommodate between one thousand one hundred and one thousand four hundred days per year. Not only would that screw up all of our schedules, but a faster rotation would also increase the amount of wind and storms on our planet.
If that's not enough extreme climate change for you, "no moon" would also destabilize the Earth's axis, unpredictably changing our tilt with side effects that would render the planet inhospitable to lots of its creatures.
Right now we're tilted at a lovely 23 degrees, which gives us relatively mild seasons and environments. But the moon acts as an external force that stabilizes that angle. Without it we could wobble anywhere between zero degrees (with no seasons and barely any sunlight) to 85 degrees, where the planet would fall over on its side like a kitten on a catnip high. Mars, for example, wobbles between only 15 and 35 degrees, and it experiences drastic climate changes where ice drifts all the way from its poles to its equator.
Finally, gang... I don't know if you've noticed, but the moon's pretty darn bright up there in the middle of the night. Sure, the sun is four-hundred-thousand times brighter. But sometimes it still hits your eye… you know, like a big pizza pie. Which means that without it, our nights would be a lot darker than we're used to. Try stumbling around in the woods without a moon and see how you like it.
SOURCES:
science.howstuffworks.com/no-m...
Siegal, Ethan. "The top 5 things we'd miss if we didn't have a moon." ScienceBlogs. Aug. 8, 2013. (June 26, 2014) scienceblogs.com/startswithaba...
Foing, Bernard. "If we had no moon." Astrobiology Magazine. Oct. 29, 2007. (June 26, 2014) www.astrobio.net/topic/explora...
news.discovery.com/earth/weath...
io9.com/5945603/who-destroyed-...
tvtropes.org/pmwiki/pmwiki.php...
Lunar and Planetary Institute. "Moon becomes geologically inactive." Universities Space Research Association. (June 26, 2014) www.lpi.usra.edu/education/tim...
Masters, Karen and Carter, Lynn. "What would happen if we did not have a moon?" Cornell University. 2000. (June 26, 2014) curious.astro.cornell.edu/ques...
ScienceLine. "How does the moon control the tides?" University of California Santa Barbara. (June 26, 2014) scienceline.ucsb.edu/getkey.ph... - Наука та технологія
Also, no moon, no more werewolves.
haha
Brettagher and no more twilight movies.
Brettagher I don’t even think they exist😂😂😂😂😂😂
Wait but there has to be twilight or I die ;-;
my favorite thing about the Moon is how beautiful it is
You forgot to mention that without the moon i wouldnt be able to turn into a warewolf anymore
R a warewolf ?
I'm a werewolf very similar species
Somerandomdude4.2526 yes. We live in warehouses.
In a Warehose? Kind of domesticated werewolf? Cool!
So if the moon vanished, we would have seasons like in game of thrones?
Hmm they didn't mention any of this when Gru stole the moon in Despicable Me!
A movie wasn't 100% accurate!? I'm calling Steve Carell!
Thanks, Lauren! You're awesome!
When she said 400 times bigger, she meant the ratio of their radii. The radius of the moon is about 1080 miles, and the radius of the sun is about 4321500 miles. 432150/1080 is about 400.
Super interesting, thanks for the video!
As a person who occasionally walks through large unlit areas, I can say that having a full moon is a huge benefit and having no moon is pretty dangerous since there is total darkness except any light I'm carrying.
As I understand it, the moon is also responsible for stripping off a lot of our early atmosphere, so without it we would have much thicker air and higher pressure, possibly even to Venus like proportions. It has even been said that the moon is one of the critical differences that resulted in our two planets ending up in such drastically different states.
great information
We would have had no giant leap for mankind
But those didn't happen in Assassination Classroom?
It fascinates me all the time!
400 times bigger my ass, more like 1 million times bigger
It's actually closer to 4 million.
That was just a gut feeling
natjimo ownage your gut feelings are allot better than her facts. I think your guts were thinking about the Earth opposed to the moon.
bro, when you're talking about comparing sizes of planets you don't have to look at the diameter but the volume. Our world is 3 dimensional if you didn't notice yet.
***** She said the Sun is 400 times larger than the Moon, which is completely different from the diameter.
My favorite thing about the moon is the romance it lends to the night. It tickles something inside me that nothing else can reach. Pick any art form, and I bet the moon figures larger than all the other heavenly bodies combined. Of all the heavenly bodies visible from Earth, the moon seems most like a person. The moon is a poet's wet dream.
I love how the moon looks when it is full and the night is clear. It's just "oooh, moon!"
With that last one about light; I live in Chicago, nights with the moon are just as bright as nights without the moon.
Likewise I live in the Northwest area by Schiller Woods (a forest preserve). I don't go in at night, because you know, boarding a big city like Chicago, who knows what drunks wander the forest at night, I don't want to end up like that high school couple murdered in the flashbacks of Dead Man Walking (1996); but staying in the lit neighborhood next to the preserve, you can see it's extremely dark in there even with the moon.
1100 and 1400 days per year, lol! I can barely keep up with my schedule in 365 days! xD, as usual, amazing video.
i love the way she talks,good channel also
Favorite thing about the moon? That we've been there!
Does the host here have a podcast or youtube channel? I wouldn't mind listening to her talk about science stuff.
Lauren currently appears on BrainStuff and What the Stuff?! (our new list show on the main HowStuffWorks channel). ua-cam.com/users/HowStuffWorks
She's also a regular contributor to the Fw:Thinking poscast: www.fwthinking.com/
BrainStuff - HowStuffWorks Thanks for the quick reply :D
tvtrops, io9 links? Someone really cares enough to give us viewers some reading material. Oh man, that does my heart good.
Also, maybe host links (links about other things the hosts does) could regularly go there in the about page? Just a thought.
This video pretty much expresses in part at least what i think did happen to Mars but with a slight variation. My hypothesis has always been that Mars had a moon like our own with relatively the same effects but was destroyed by an impact from a meteor from which the loose remains are what Phobos and Deimos are. The huge gash on Mars is where the remains of the former moon slammed into it scattering all the iron, vaporizing most of the atmosphere and devastated its magnetic fields. Our own moon nearly experienced that itself and a huge impact nearly cracked it in half. If Earth lost the moon like Mars did Earth and Mars would be that much more alike.
that is such smart design. Call it God, Aliens or just accident but it is very intriguing how everything in the Universe works together for our survival
My favorite thing about the moon, is that it's round
At 1:18 she says 68 instead of 6 to 8. It made me super confused...
I'm glad I read the description.
Edit: No matter how many times I leap back, I hear the same.
I clearly heard 6 to 8 hours long.
How do you get the video to google slides?
I don’t feel the 1st 30 sec was necessary but great video!
The moon also pulls on the core of the earth, so not having a moon would probably effect the magnetic field. No moon would cause less heating in the core as things would not be moving around much as well.
I like it keeping us alive.
I'm confused. Why would the Earth's rotation suddenly speed up if the moon disappeared? Where would the extra kinetic energy come from? As far as I can tell, it's not like the Earth is "straining" against the moon's gravity like someone pushing against a door that suddenly opens so they fall through. Wouldn't the Earth just slow down at much more gradual rate?
Because of tides. Moon's gravitational pull mobilizes the mass of water on Earth, making it slow down Earth's rotation.
the gravitational energy which is acting on moon will convert into kinetic energy , so earth rotation will obviously be faster .
That shirt is awesome
Also, no waterbending.
One solar mass (Since we're speaking of Gravity) can be converted to
27,068,510 Lunar mass (ML) ------- Source: Wikipedia (EN) - Solar Mass
or if we want to speak of Volume:
Sun: 1,4122 × 10^27 m³ Moon: 2,1958 × 10^19 m³ About 64'383'561x BIGGER
What about this for a topic. What if the earth lost it's wobble ?
Master Roshi (as Jackie Chan) turned the moon into space dust when he fought young Goku.
That was nuts !!! Our moon better not be going anywhere anytime soon.
sadly the moon drifts away from the earth 1 inch (or centimetre) a year, so in some billions of years, there will be no more moon
Did this video release without sound? Or did my audio card fail?
If the moon wasn’t here the people of the Earth benefit, they would be a calm and people would start seeing things that they couldn’t before
No moon = perfect mondays.
how do they know all of this if the moon has never vanished before
+Tony tony Math!
+BrainStuff - HowStuffWorks AND SCIENCE!!!!
They study what happens when we do have the moon.
Feels like everything has to be as it is for habitability... Not only the funtion in space but also the way the earth looks. I thought the moon was just "the moon" but no, it had to be quite important for all lives anyways lol.
Hi, what would happen if the moon broke apart, but was still there in our orbit, what would happen then?
does the new moon move 4 centimeters every year one that mean someday it will be gone yes or no can someone tell me
+salena hernandez The moon is indeed moving away from Earth slowly. But the moon will probably never escape Earth's orbit because the sun will go into its red giant phase first, causing the moon to crash into Earth about 5 billion years from now.
When the moon hit’s your eye like a big pizza pie…
How does the moon project light?
We would have to get different clocks and watches if you had one
"stellar" performance Lady of LaPlancha !!
Do we ever feel the moons rotations
Without the moon no water bending
So basically without the moon we'd all die?
yes
I love that Werewolves are thing because of its existence :3
I dreamed that our moon blowed up right after an eclipse thats why I'm here
😂😂😂
Antonio's Life lol
wow. we really do need the moon.
You forgot to mention that the moon is moving away from us all the time.
Lauren is smart and beautiful :)
remember in the Time Machine movie remake when the moon got all messed up?
live long and prosper
Did you also know there was 2 moons millions of years ago
Heres a WILD FACT! The distance between the earth and the moon... you could fit ALL other planets within that space! 387,000 is the space and the width of all planets is like 350,000 I believe. May be wrong about the numbers but it is INDEED a fact that all the planets could fit in between the earth and moons distance
This should be a movie lol.
Those hand gestures.
I just had a dream about the moon crashing to us wow that's scary
Tom Shariat yeah, me too
Yay
Just watched Space 1999
Dose anyone know that the moon is going away from Earth 1 inch away every year and good information
you need to explain why the earth's spin angular momentum changes for no reason, scientifically and mathematically with a simple model, to violate the angular momentum conservation, in stead of just talking nonsese without a proof. i could also say the same thing it is the moon that puts a large torgue on the earth's spin axis. because the earth equatorial little bulge doesnt line up with the plane of moon's rotation that causes MORE nutations and then... THE unexpected chaos..... to end the civilization.
Mar's bigger nutation is maybe due to the fact it is closer to the jupiter?
I have a question
why do flashing lights cause seizures?
Excellent question. I'll add it to our topics list!
+draph91 bit offtopic
in new Orleans haven't seen the moon in two days wtf is going on
My new theory of the moon along with water and gravity and such makes me think of the following.So ok the moon affects the water and that is a LOT of water. Now think how water is moving not at the surface but also down below. These waves of varying pressure depths makes the earth mantle move up and down. Many times this moving up and down is pretty much a frequency in itself. So you could call this type of movement all over the earth that it is throbbing all over at a very slow nature but it does have an effect on the molten core that helps keep it spinning.Just think if the earth did not move around like a jiggly ball of jello that it would lose gravity and water would soon just fly up to be on the moon and then people would move to live on the moon and now the water mass increate would make it jiggle and create more gravity then an atmosphere.
When Theia hit the early Earth.. the continents weren't formed? Pangaea?
they had no choice but to rush it since 4.5 billion years of information in 3 min would have been way too much, I still found it amusing though
Why does the moon even glow!???
Um, Mars has 2 moons, so why isn't it's axis of rotation stabilized?
Because Mars moons are dwarfs compared to our Moon, and distance between them and Mars is larger (If i remember well), so the gravitational pull is significantly weaker.
+Felicia Betancourt Mars' moons are tiny captured asteroids and have almost no gravitational effect on Mars.
The thing that impresses me the most about the moon is the fact that there is no good natural explanation as to how it got there. All the theories are riddled with problems that make it impossible to explain.
That's cause you haven't read the bible
I said there is no good NATURAL explanation. I am convinced God made the moon and set it spinning around the earth. However, no evolutionist or naturalist can admit this to be true.
Well, when an engineer designs something, it designs the whole thing, not just parts of it, expecting it to finish itself. Same thing with everything else:)
Victor Estrada Does it hurt to be so dumb?
Abcflc does it hurt that you didn't understand what i said, and made yourself look stupid?
subtitles on at 0:06 😂😂
For anyone who is wondering, the Sun has a volume of approximately 64 million times greater than that of the Moon.
why? because SCIENCE!
It's just how we do!
Space 1999. Nuff said.
without the moon we wouldn't have werewolves :c
how does the moon slow down the earth ? 68hrs day ?
About the degrees that the earth is at... where is the scientific grounds for that?
Is there a dark side of the moon?
I'm sorry, but saying that the Sun is 400 times larger than the Moon is incredibly misleading, when in reality, it's more like 64 MILLION times larger. Not only is it more accurate, it also sounds more impressive. I'm glad to see I wasn't the only one who felt the need to point this out, but I still wanted it off my chest.
Luna notary
collen ballinger
I thought the earth absorbed the offending heavenly body? At least in the version of this theory I had heard it had.
Degrelle Holt which story?
Okay, completely tagental to the topic of the moon, but I've been watching this series for awhile and I've been meaning to say it now once and for all. Lauren's precise bowl-cut bangs, coupled with her long black hair make her resemble a nun. Has she ever considered being one on Halloween? I dunno, she just looks like a nun! Not that it is a bad thing at all, but the resemblance is uncanny!!!
is it real
cool but is the moon basicly help us live!
I'M A WARRIOR!
I love the moon because with it we would survive
Lunar nerdery🌒🌓🌔🌕🌖🌗🌘
The sun being 400 times bigger than the moon sounds wrong somehow.
Weird, she has two shadows casting from her nose.
Our studio's light rig has three lights: one on either side of the performer, plus one overhead. Thus the double nose shadow.
How about the most importent things
-no moon no werewolfs
-solar eclipses
+redouan abdellati - no humans
***** no jebus
if it wasn't for the moon, life would have evolved into something else... could be for the better or worse... we may never know... ;)
awesome! You guys are lucky we got the moon, else life will be unbearable on Earth.
What would JFK have challenged us to go to were there no moon? What would teenagers call baring your buttocks to someone? And Moon Pies? Would they be called Sun Pies? A second job would not be moonlighting. No such criticism as, "that's pure lunacy!" And half of our favorite songs have been about our satellite. "By the light, of the silvery... help me out here somebody!"
Sorry, but this video has a few inaccuracies. There's no way the moon could have formed by her description. How could the debris from such a collision collected together into a sphere at a perfect distance away from the earth? Not likely.
Further, the moon is receding from the earth, which means it was much closer in the past. She says the moon is 4.5 billion yes old...not likely. The moon must be less than 1.2 billion yes old because at dates older than that, the moon would have been so close that the tides would be great enough to have swept over the mountains. Do some research on the "lunar crisis".
I don't get it
Lauren! put on glasses!!!!!