No cats were harmed in the making of this video. Probably

1:49 What is it with "science" channels and not using SI units? xd

Humor in this video was written by an AI.

Ahh the pursuit of artificial gravity is a daunting task. Don't let it get you down.

So, "no". Got it.

When I was a teenager back in the 80s, I though we would have anti gravity and artificial gravity by now... Sad. 😩

What a waste of watermelon...

1. Invent time travel 2. Ask future humans if they have any ideas

3:32 I wasn't looking at the screen and I thought my cat was meowing lol

Good information. Ty for producing

I'm doing a similar project on mass lol, but mainly an air resistance project!

While magnets can definitely help with walking around the inside or outside of a space ship, it's not even close to a replacement for gravity. See, when a normal force (like gravity, or centrifugal force) acts on something, it will distribute the acceleration pretty evenly across the object. Although magnets can create a very strong force on something, it's more like sticking something to a wall in zero g. If you put magnets in your boots, for example, your feet will easily stick to the floor. But the rest of your body will still remain in zero g, especially if you're standing still.

i'v got a dumb question ....!!! What if we build a big gravitational machine big enough That can bend light Can we teleport from it?? Or it effects the earth gravitational What if we put that machine A lot more deep down from the highest mountains In artic or somwhere like everest.... Things really get starts (Gravity works as mass calculated as "g") Higher the mass it faster hits the ground With higher speed means higher "g"s So what if we tried to push something from top of the Mountain Straight To down wards where gravity machine is being place which pulls object's like earth does So basically the falling objects is getting pulled by earth's gravity and our machine at the same time With double the speed To achieve the speed of light ( teleport) basically i`m not a sciene student so excuse me i"m wrong

Thank you for useful content and I like humor here.

Very nice explanation. Thank you

"Astronauts still float around like complete chumps!" 😅🤭😆🤣 Really enjoyed your video, cheers 👍😊

0:49 since when did watermelons taste so bad?

Imagine doing weight lifting in a room that’s 5 or 7 times earth’s gravity! Humans could get so much stronger. Stronger bones. Denser bones. Public access. You use it for 2 hours a day or 3 hours a day. Just like Dragon Ball ☺️ I want that type of gym.

Could use those centrifugal rings for sleeping quarters instead, what with your head and feet on the same level relative to one another. Wouldn't need to be as big, and you could even make it spin at 2 Gs.

Great presentation.

personally I think artificial gravity will come by the way of super magnets. the only problem is the amount of energy required to do that is crazy so we have a long way to go

I love it . Your technical ..then you dumb it down with a pail of water... You don't even realize you solved hollow earth...

First of all a few misconceptions here. Gravity is not a "force" and it does not "pull". A massive object (earth) bends the natural geodesic lines of space-time more near itself, than further. This creates what is known as a tidal effect. The bottom of the melon, feels a greater tidal effect because it is nearer to earth than the top side of the melon. This differential in tidal forces, causes the melon to follow the natural flow of space-time, hence accelerating towards the earth. In the case of the earth - melon system, the geodesic tides are not nearly strong enough, nor is the melon big enough for it to feel different g's on the bottom and on the top side (these differential in g's does exist but it is so small that the electromagnetic forces holding the melon together as an object keep it intact) but in the case of 2 big planetary bodies, the story is different. The moon does "feel" different g's on each of its sides because of its large diameter. If the moon was orbiting even closer to earth, the differential would be even greater, to the extent that the electromagnetic forces that hold the moon's molecules together, would not be strong enough to keep it intact (but the moon would need to be orbiting very close for this phenomena to happen). If you were to stand on top of a very small black hole (say 1 meter in diameter), the geodesic of space-time would be much more bent on your feet than on your head, causing you to feel the tidal effect with extreme consequences. Please use SI units in the video

1:40 - seriously guys you need to get this right if you are a science channel. The gravity of the earth does not pull objects towards its surface! The objects and the earth both exert a gravitational pull on each other - however due to the different in mass the small object has a lower inertia and therefore moves more towards the earth more than the earth moves towards the object.

Looks good!

Metric, any one ?

to make gravity we need to make a ball that moves very fast on the outside and very slow on the inside, the speed something falls is because of the speed outside of the ball moving and the speed the inside has been geared to move

So funny and informative.

3:37 source?

Nice video

Do you have any metric in this science video?

How do you define rotation? Like speed, doesn't it only happen _relative_ to other objects?

Is there a possible way to have a room (on earth) where you weigh more than you normally do. I'm thinking of having a room for physical training.

please can you do a video on jetlag?

What I've been trying to figure out is what would happen if you were accelerating AND spinning at the same time.

Check out the NASA flashback project. It opens up larger in space. Try putting the same mechanism on so it can open up bigger to increase gravity so speed decreases and allows life on it with out any weird affects

What about altering the body's electromagnetic field in order to produce artificial gravity in space? Rather than the spacecraft.

So strapping on a magnetic suit and walking om a magnet is'nt going to work, have they tryed it out in space?

The humours were so bad that it made me laugh

I've no idea how wrong I am, I expect a lot... but if gravitons are the carrier particles of gravity (I said... IF) are the completely innate to mass as a property to mass or could we harness them and produce graviton arrays that force the effect of gravity to objects over them, thus having gravity? (be gentle in your reply)

Sir what if we use metallic shoes and magnetic field is Ower as equal to 1 g force that can feel nice in space craft and we can design thing like that other problem may work up like that please reply I am thinking about this plan too much

cringe - Ok constructive stuff tho, would be great if you had gone into more detail about size of rotating ship and the force on your feet vs force on head

Thanks 👍, can you show Gravity experiment in 0 G , like putting one heavy and one light object and see their behaviour

When light goes up objects go down. Just like floating dumpster.

How big would an object have to be to have its own gravity’s you can stand on it without falling off when upside down nice video though cheers

How about vibration waves, or warp drive, bending light or electromagnetism

What if we use high density matter such as neutron star material?

No watermelons hurted while making this video

Whats the atom counter for?

What's a mile?

if you could develop a gravity amplifier or neutraliser then infinite speeds in space become possible..All you would have to do is amplify mars gravity and possibly at the same time neutralize the Earths Gravity .If you wish to change direction you just lock on to another passing planet's gravity to pull you in a curve. Is there's any theoretical maximum speed you could achieve? Who knows

What about air and water to be used for gravity ? One ring would push air that pushes water . I think water being pushed correctly would be a better use .

correction please because gravity is not an attractive force but a dent in space in 3 dimension due to heavier mass, the only way to make it posible is to squeeze an enormous object to small on atomic size causing a small object to have an big density

The "jokes" make this very difficult to watch.

What about magnets in the ships floor pulling on a magnetically attracted full body suit? I dunno what is any material or composite would be light and comfortable enough to wear but still be capable of being attracted to magnets

Centrifugal will only work when there is some inward force aka tension in rope or string...but in space,there is will be no tension in rope so how much u rotate there still be no inward force....

So I wonder how much lighter you would feel standing on the equator (as opposed to the pole) due to rotational momentum or "centrifugal force"...

The real force that people mistake for centrifugal force is called centripetal force. It's kinda confusing since it's actually the force towards the middle of a rotation but it makes sense if you look at a diagram.

I've solved this conundrum...use centrifugal force but instead of walking, have the astronauts cartwheel around or walk on there hands when light headed....

Actually the magnet idea wouldn't work properly to sustain leg strength and orientation anyway. Sure your feet are glued to the floor but you'd be dangling there like seaweed and have to apply force to lift your legs only while being sucked back down every time you take a step. Your legs won't be supporting your weight, only pulling your legs away from the floor.

Why not have a magnet strapped to the front of the space ship atleast 10 feet out. And when you want to accelerate turn on the Magnetic force.

We dont actually need to wait till we are able to build a ginormous 2KM diameter ring. See for example the Fire Baton NEP concept (based on modern SSR research), almost same span with the ISS main truss, gravity gradient: 1.78% per meter.

Hmm no explanation as to why the magnetism idea was even considered? Very strong magnetic fields tend to levitate organic matter. Why's that? That's because organic matter generally consists of a lot of water and water is diamagnetic, which means it is weakly repelled by a magnetic field. Key word here being weakly. Which is why you need a very strong magnetic field to notice the effect. Also notice that while the magnet would repel the water inside you, there's some iron in your bloodstream which would be attracted toward the magnet. So your blood flow might get seriously hampered by it. Hmm that's without taking into account all the positively charged sodium, potassium and calcium ions in your muscles and nerves. They too would respond to an external magnetic field.

1G is a force of 9.8 m/s2 (second square) acceleration, how can you represent it with VELOCITY of 22 mph!

The trick is not to explain gravity. That will come. Once we understand how motion works. I mean what is the effect of gravity that we see. A suspended object at rest has potential energy. Once released to drop to the ground the potential energy is converted into kinetic energy. Which is converted to heat energy when the motion stops, a.k.a. it hits the ground, which is radiated out. So no energy is created - That's impossible. It's simply a series of conversions from one type of energy to the next - Probably driven by the rules around entropy. The trick is to understand the step that converts potential energy to kinetic energy completely.

Please tell me what would happen if we sticked some magnets on airplane's wings, what would happen?

forget the ring, scale it down to a spinning platform with arms that reach out several kms. not sure about the maths but I'm sure someone here can figure it out. oh and we don't necessarily need 1g. just having some gravity would help.

and what if we combined a less powerful magnetism with a less powerful spin?

you couldn't use electro magnets for the same reason you couldn't use a ring that's too small, tidal forces

224 mph may seem fast. but the international space is travelling around earth at 17 400 mph, and the earth is spinning at roughly 1000 mph. so is 224 mph really all that fast in space?

5:48 can this be done with a cube with no walls? Only the base and a way of being able to spin it. Just curious

Have a look at the alcubierre metric for a gravitationnal drive. He design it in harmony with Einstein. It would require negative energy, wich might not exist, but next years confirmation or not of antigravity property of antimatter might render such a metric really possible! Might want to add that to your video

What if you created a double layer so the outside layer would constantly spin creating the gravitational force and the inside layer would be stationary and suspended within creating a miniature gravitational field 🤔 maybe if that makes sense

If you create artificial gravity in a zero g environment the ship will be pulled in the direction of the gravity's pull.

Why not use propelled air like in a wind tunnel. you probably couldn't work in that environment but you could exercise!

I want to ask that centrifugal force is the opposite force of centripetal force but here the work is done by centrifugal so what is about centripetal force??? what centripetal force do here??

Actually one must also add the possibility of rotating upon an axis as a Planetary Body ("Dyson Sphere.") Given sufficient mass in orbit around say the Moon or the Earth or even the Sun (between Mars and Jupiter) and a human made Planetary Body cannot be ruled out as "un-possible" and at the moment at least (Year 2021) one could argue as suddenly a probability. This would matter first and foremost as some type of shielding from the enormous radiation emanating from the Sun but secondarily would be the creation of well, at a minimum artificial gravity.

So, is that why the Enterprise from Star Trek, is designed the way it is? Nice.

If you could warp space-time to get a warp drive, then you should be able to warp space-time within the outer space warp bubble to get artificial gravity inside a space ship. So, perhaps long-distance space travel for living beings will have to wait for warp drive technology, to get the technology for both propulsion and pseudogravity.

Waste of perfectly good fruit. :(

Disappointed how entry-level this video was when you are talking about one of the most misunderstood concepts in science. Why not go a bit deeper and mention what gravity is with reference to quantum fields, or at least mention it as a process of spacetime annihilation. There's all sorts of topics you could have mentioned such as Alcubierre drives (that seek to use the properties of gravity and dark energy to achieve faster than light velocities), exotic matter, and some of the more pertinent discoveries with reference to the Casimir effect.

Just make floor of that stuff neutron stars are made of and you have nice artificial gravity.

What about super compressed radon? Its atomic mass is 222 and if you could compress a lot of it in one space it could have its own gravity. It is one of the heaviest gases out there allowing for liquid radon, if you compress it then it could actually attract objects to it. Although... it is very radioactive.

So do we live in the center of the Earth

Can v make the Mars gravity land system for motor wheel drive and respond wrong bcz Earth 🌎 gravity moods is another power mechanism and possible if v make the rover's multiple gravity moods and

as the earth rotates at 1000 miles per hour, 224 miles per hour doesnt seem to bad :)

How is information carried through a metal cable?

...You just made this video as an excuse to break a bunch of perfectly good watermelons, didn't you?

Don't used food like that ...

So if we loose weight our gravity full will be less n we look younger rite

I am also working on a project

If I'm driving and slide into my door that's gonna be really bad in a left hand drive car

c trop bien

that kinda magnet could probably pull the iron out of your blood...

How much mass does something have to have to have a measurable amount of gravity?

I'm convinced that gravity can be created by making some type of extremely heavy element

I found a way but, need to prove my theory, any help would make it a reality, works when put into a computer simulation every time, now I need to build it problem is lack of funds, and some people are sceptical, but I really want to find out and see it through to prove right, or wrong.

What about like metalic threads and magnets. Just magnetic boots with earth like gravity would be good enough

5:10 So how would the gravity or physics behave on a space elevator space station that is tethered to earth?

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