If Earth Were Half its Size 

if earth were half it's size my amazon packages would arrive faster

what if saturn became a moon of jupiter?

If earth was half its size.... North Koreas missiles might actually reach the U.S. Lmao 😂

half size = not enough space

You can practice living on low gravity by living on Earth's moon and also on living on Mars.

if the earth's diameter shrank by half the mass would be 8 times less.

One thing you fail to take into account is that in this smaller Earth all the fauna and flora will have had to evolve in a pattern corresponding to the circumstances presented before it. Thus trees, whales, humans, et cetera will more than likely reach a size that befits the ecological niche that nature has provided, as a result, a smaller Earth would translate into smaller trees, whales, and humans because that would be the ideal size to accommodate within the lesser resources of a smaller Earth. There is one area where a difference can be seem between Earth and a postulated smaller Earth. Given that the gravitational attraction is less that would mean a smaller Earth would have a thinner atmosphere and not just in proportion to a fifty percent reduction but substantially less. That has tremendous ramifications with regards to whether a smaller Earth could sustain oceans of water on its surface. Since we know that water is critical to animate objects it is a question whether a fifty percent smaller Earth could be able to support higher life forms such as vertebrates and arthropods.

Honestly, man your content is amazing. Ive been watching your videos for a while now and I cant believe that you only have 1,600 subscribers. It looks like you actually put effort into making your videos just for the passion of it. All I can say is keep doing what you are doing man

Zooplankton plays a huge role in the Oxygen that is displaced in our Atmosphere (Approx. 40%), this means that we would probably not experience Oxygen loss in such a disastrous way you have displayed in your video, but in a more acute manner.

Another outstanding RU-vid presentation by Dreksler. Please keep these coming!

Today I found your channel and today I watched most of your videos! keep up the good work your channel is one of the best so far !

You honestly deserve a million subs!

Wow, your videos are incredible! You look like you have put so much effor into this video and all of your others and congratulations because they are amazing!! You need more subscribers!

You deserve more subs. i love your stuff man.

With this great content, and your subscription rate, you will likely have 10,000 subscribers by 2018 and 100,000 by 2019. Excellent videos!

Dude your subscribers ratio just exploded. Congrats because this is such a great educational content. Keep delivering science!

Thank you, Dreksler, for always delivering top-notch material.

Jupiter: Your smaller than mars earth Earth: *Pulls out Antimatter Bomb*

Smaller: Taller Easy to walk Big trees Cons: Too small for oxygen Larger: Lots of space Cons: Can't walk Bad bones Yeah, medium is best.

Awesome Video man! Would like to add one thing that since earth is half the size the core will cool down much faster and we will likely lose our geomagnetic field. Adding the risk of more radiation

Nice video. Just came up in my recommendations!

your content is amazing. Nice research done. Appreciate the effort and thank you

I really like your content. Subscribed!! keep up the awesome work!!!

Well I mean, are we talking about halving its size without removing any mass? Because then the gravity wouldn't decrease, but would in fact increase due to the laws of gravity.

what if we had mars as our moon? or if the half-sized earth orbited mars?

I subscribed bro! interesting stuff man :) keep it up

The first video I saw from u Dreksler was the Sun dying video which was very interesting. Been subscribed ever since.

If earths diameter is halved, it's volume is only going to be 1/4th en thus gravity(determined by how much mass is present) is going to 1/4th as well. If the diameter doubles, gravity is going to be 4 times as strong. Simple consequence of the square-cube law

1:33 Now I really want the Earth to half its size.

I've been watching these videos for an hour now, all this is so god damn interesting

Really enjoy this channel !!!

Next Video: What if Earth has no moon ?

I love your space videos!!!🤣

i hope your channel grow bigger...its epic

Videos like this is very useful when it come to modules and stuff

The density issues with respect to vertebrate bones would likely be the same regarding plant fibers including the wood in trees. Another serious complication that reduced gravity would present for such an Earth would be reduced surface air pressure which would adversely affect the freezing and boiling points of water meaning that ground water might sublimate directly into the atmosphere leaving surface plants to potentially go thirsty.

Great content and one of the best yt channels! You deserve 14 billion subscribers!

If the diameter shrunk by a half, according to the volume of a sphere formula, the volume would shrink by over twice as much. Since volume is proportional to mass (assuming same density), if the radius shrunk by half, there would be OVER 2x LESS mass, and over two times less mass actually means gravity would be over 2x weaker

better than any other channel who talk a lot about other but not the video a lot.

Fine stuff . Keep on to more interesting astronomy . What would the sky look if the Earth and the Solar System would've been in one of the Magellanic Clouds .

We'd be half our weight?! Where is this Earth 2 utopia? I'm moving there now. Great content, Dreksler. :o) You came up in my recommendations and I've subbed.

Glad I stumbled on this, a few new things rattling around in my Noggin now.

If the earth was any bigger or smaller, we would have evolved to survive it..!

THANK YOU FOR USING METRIC SYSTEM, I LOVE YOU, and subscribed..

What if Earth was half the size from the beginning, ie. not shrunk suddenly? How would have all the living organisms evolved? I know our bones would be less dense, we'd be half as tall but could still slam dunk a basketball.

When you say 'Half its size', you have to define what that means (mass, diameter, circumference, etc..). 0.5x the diameter reduces the mass more than twice, so the gravitational pull would not just be 50%. Also, the fact that we're closer to all that mass influences that number.

0:43, you are saying that g would be 4.9 m s^-2. This depends on a handful of factors. Gravity depends on mass and inversely proportional to the square of its radius. If the mass were the same, then the gravity would be 1/4 currently. If its mass goes down by a factor of two then g would be m s^-2. It's impossible to write a vector on a youtube comment

Wow your videos at really entertaining. how do they not have more views?

I never thought about the idea of earth being half it's sized great vid as usual

_If Earth were half its size_ Liked for your correct application of the subjunctive _were,_ a feat which seems to be beyond the ability of most uploaders to RU-vid.

"Atmosphere would go away" Wrong. Mars supposed problem is a lack of magnetic field that allows solar wind to erode the atmosphere. Assuming the atmosphere does not lose mass as well, a smaller surface means thicker atmosphere, circa 8 times.

And somehow airlines would find a way to charge us even more even though the distance to everywhere was cut in half.

This channel is going to explode in popularity.

great content dude🖒u got a new subscriber

can you do a video about interstellar​ planets and stars (outside of our solar system)? it would be cool

Wow....excellent video!

thanks making these videos

When decreasing the size by a factor of 2, the mass would be 1/8 of its former mass, right (assuming density stays the same), since the volume of a sphere depends on r^3 (1/2^3 = 1/8). So 1/8 the volume with same density makes 1/8 of the mass. Please correct me if I am wrong :)

Nice video. What would life be on earth if it was twice the size than it is now.

You sir, are going to grow very fast

These videos are amazing

Can I do a parody video on your video archive? Eg; What if Earth were 2D flat but LeBron could still dunk? What if Einstein became a pants salesman instead? What if a galactic superhighway were built through our solar system and it was raised through eminent domain? Just kidding 😄. Great series! Ideas. And Great found footage!

Can you do a video like this but if earth were twice the size

cutting the diameter in half doesn't mean you get half the size of earth 1/8th because the volume of an object is directly proportional to the cube of its diameter.

next video what if proportions of land and water were opposites like 30% water and 70%land

At that size what is the earth spind twice as fast would that compensate for the gravity

I assume you have heard of the Expanding Earth Hypothesis. Earth it is suggested was half the size and covered in water. Relative to gravity the EEH allows for the extinction of the dynasaurs due to doubling of gravitational pressure.

please do a video about What if Earth has half of its land mass.

What happens to mountains/buildings or roads? Are our houses half as big now? Are we bigger creatures in smaller cities?

another greay video mate. do you take requests for new videos :)?

tbh, u deserve more subscribers

One thing is for sure that the land price would increase by 4 times if the earth would be half size.

Magnetic field would probably suffer to, potential shower of radiation from the sun. The weakening of the bones wouldn't be a problem with less gravity. Though some may carry weights round with them. Thinner atmosphere may disrupt air travel and air speed depending on engine type.

Wouldn't things increase in density?

Why are you sure the earth would be less green? I can see lower winds making the original spreading of grasses (and maybe every other type of seed-reproducing plant) take longer, but once spread, why would lower wind speeds matter?

i bet aliens in far away solar system have made a video about " how does standing on the earth's surface feel like "

3:08 Universe Sandbox?

The description for a smaller Planet almost sounds like a perfect description of the Avatar Planet, Big Trees small planet tall people I don't know sounds weird LOL

"If de eart shink by ha..." -- man, is your lower jaw broken?

How much would the length of the year change?

Why gravity would be half of earth gets to half its size why and how does that make sense

Great video

Since there are no planet fairies that go about waving their magic wands to decrease or increase mass, your question would be better framed as: "What if Earth had developed such that it had only half the current diameter", and proceed from there.

I have been trying to loose weight for a long time now and failing.........now I hope that earth would be half of it's size, so that I can finally lose weight.

If earth were half of its size then Jason from far cry 3 hasn't said Faster Faster

How about a video of two Earths in a barycenter orbit? Would they be tidally locked to each other and the sun?

if you cut the diameter in half, you don't cut the mass in half. The mass is reduced much further. When you calculate the volume of a sphere, you cube the radius.

Great Channel

I love you and what you do. I can see that you are doing this becouse you realy like to do it!

halving the size of a sphere quarters the mass roughly

The earth was small pre world flood - the additional water which poured onto the earth from was eventually absorbed deep into the crust, this water heated up and exploded causing the ring of fire. The fractured the and created the tectonic plates and made the continents we have today. Observe some of the stretch marks under the oceans. The Previous atmospheric pressure would have been a lot higher, possible 20-30%. It possible never rained and was extremely humid. Uv light would have been a fraction of what we have today.

Wait, if it's half the diameter doesn't that make it 1/(2^3) = 1/8 the volume?

Sir how much half earth tons please

I assume it's mass is halved as well? What about it's density?

if the earths radious were to be half as long, the grevaty would be 4 times stronger than it is now so it would be about 40 m/s, if you want it to be half as strong, so 4.9 m/s than it has to have half of the mass it has now, but the same size

"If the Earth shrinked" - shrank!

If earth were half it's size,how many hours in a day and how many days in a year? What about earth rotation spead, how much big to see the moon?

Next video: What if Mars were twice its size

If the earth kept the same mass and shrinked inro half its normal size doesmt that mean that the grabity would be stronger because we are closer at the center of earth??

if the earth was half it's size....plane tickets would be half price...