The Power of Gravity | Wonders of Life w/ Prof Brian Cox | BBC Earth
Вставка
- Опубліковано 12 вер 2024
- Professor Brian Cox explores the power of gravity and how small creatures such as insects appear to have superpower strength in comparison to humans.
Taken from Wonders of Life.
Subscribe to BBC Earth: bit.ly/BBCEarth... Earth UA-cam Channel: / bbcearth
BBC Earth Facebook / bbcearth (ex-UK only)
BBC Earth Twitter / bbcearth
Visit www.bbc.com/ear... for all the latest animal news and wildlife videos
This is a commercial channel from BBC Studios. Service & Feedback www.bbcstudios...
He has an incredibly good handle on physics all the while being amazingly good at explaining how stuff works.
How can I keep the Love of God to myself? I feel we never feel real happiness because we take pride in our knowledge and ability as humans. And we do too much. We ought to discover the science around us and use it to help one another - but not without considering the importance of the Love and Peace God gives through the manifestation of Himself through Jesus Christ.
@@Sharon-David-ChristianPilgrimno thanks. Keep it to yourself
@RedTail1-1 Tell me, what makes the earth constantly undergo revolution, rotation while tilting on its axis, as the universe is expanding? Why has the sea not overflown for years, who keeps the snows and frost in secret places for times of winter, and famine and war? Why can humans be killed by anything, even as micro as micro-organisms, even though we have technological breakthroughs and are more powerful than all creations on earth? Why are some weak animals immune to what we are endangered to? In life, the best thing to do is to identify what the problem is and find out what will fix it. The point is, there is a problem with the human race, and knowing facts about the science world is not enough - but what is more important is 'how does this solve the problem?' Again, the things we discover, we didn't make them, the Sovereign Creator has given us the task of discovering these facts, using them in our world, and to also not turn a blind eye to the fact that if we do not regard the conclusion that sin, a disease in humans, is also a problem to tackle using the tactics laid down in the BIBLE, our discoveries will only always give a bad effect as well as a good effect. For example, Albert Einstein discovered important things and made the theory of general relativity; as a result, the 20th century was the bloodiest century of world war. Why? because one problem was left without regard - SIN.
The melon is smart and grows close to the ground for this very reason. If humans did not tame them they potentially could have become the apex predators.
Joe Black Comment of the Year, three years ago.
"A melon...doesn't bounce." Sexiest line ever ;D
Easily amused/ aroused aren't you?
How??
Our every second of live is surrounded by the law of physics. That's quite magnificent!😁
Sir does how is a feather and a stone thrown in vaccum reach bottom at the same time.
The feather and stone aren’t “thrown” in a vacuum, they “fall” in a vacuum, at the same rate. Newton’s second law, f=ma. If you use that equation, then you’ll notice that the small “m” cancels, and we’re just left with (g). Does that answer your question?
@@anitaojotoro thankyou so much for the reply ❤, how does the m cancels.
@@anandapatmanabhansu Good question, would you do me the honour kind person, and find my friends video please, it’s called, what atomic school gets wrong about tides! and I’ll be more than happy to explain in detail for you, as I also ❤️ science. I’ll reply to you there…take care.
@@anitaojotoro thankyou so much sir❤
@@anandapatmanabhansu That’s very kind of you, but I haven’t explained anything yet! 😅 So, f=ma and the force is the weight of the object…right! and therefore = mg - where (g) is the acceleration due to gravity. So, can you tell me what is the formula for the gravitational force between two objects is? I’m positive you know the answer, but I’m only here to help! 😁
He forgot to mention the grape also undergoes elastic deformation hence why it bounces and the water melon cannot because it’s brittle.
It's not brittle. That's also not quite the reason this happens either.
Brain Cox you are my real professor I Love you sir
These videos are great. Thanks BBC!!
+Noel PerezCortes they are if you want you brain turned into the same mush as the melon
Then i guess i have a mushy brain...lol
It's almost like his main point got cut off.
+Paul Bryan Platt Dude your toasted :D
Perhaps they just wanted to show him licking his finger lmao
0:40 the outcome was so impredictable...rip melon
Useful and exciting
can that be explained by momentum transfer.. since grape has less mass so it will apply less force on earth and in reverse grape will experience less force from earth and for melon , has greater mass so as it touches the earth it will apply a greater force and will experience greater force from earth and it is enough to break the melon..
What you describe is called inertia.
His wife: You are cleaning that mess up Brian!!!
*Drops watermelon*
Brian Cox's Game of throne moment
I wonder why humanity has not been able to harness gravity?
Hello Rosemarie, that is an interesting question, but I don’t quite follow your reasoning. Have you seen a simple water-wheel at work? The water falls under gravity, which turns the wheel and powers the machine.
@Wavy Davey yes I understand. For instance, would humans use gravity to travel or move giant boulders of old.?
@@rosemariekuptana8593 Hello rosemarie, more good questions and we can also utilise the power of gravity through tidal energy, but you’ll have to comment on my video to find out how? Good luck and best wishes.
I wish he was my physic teacher
I think the same sir.
You should watch ‘beyond the imaginary curve’. That’s real intelligence
@@Bendy-oceans-lol is that a flerf video
@@justin9202 you haven’t even got your own mind yet my little fruitcake.
God bless
is it newton's law of gravity of particles attracting each other or Einstein's gravity law of mass bending space time? is weight then caused by mass or gravity caused by mass bending space?
It’s not really an either/or question Edward. Curvature of spacetime is caused by the presence of mass. And weight is the acceleration that the curvature causes on that mass.
@@anitaojotoro I see you understood my question. However if mass/ weight is the cause of the 'space time fabric' bending that means, weigh causes the free fall and not gravity acting on mass, see Brian cox visit the largest vacuum chamber.
@@edwardchege2623 I see you’ve been talking to a friend of mine, see my explanation for the misunderstanding of tides and I’ll be more than happy to discuss this further with you Edward.
What about density or weight?
It doesn't suit the narrative.
That's the entire point of dropping things that aren't the same and still fall at the same rate.
What a waste... People in Africa could have ate that piece of paper.
All joking aside, stop with the easy and redundant comment. The amount of food wasted per year in America and other countries around the world is mind blowing. And to say that the melon was wasted is true but no, someone from whatever third world country couldn't have ate it. The cost of shipping it outweighs the worth of the fruit by an insane amount. Your better off giving donations to a non profit charity that sends seed packets and instructions on farming/care.
Kurosaki Ichigo Is that a joke? Because if not, I just want to say that GMOs are not dangerous at all, people need to stop being over sensitive about genetic modification.
good joke, actually made me snort a little xD
I feel sorry for the melon. It was so juicy and attractive :(
The beetle however was enjoyable to watch, beautifully bouncing...
All good but the force b/w water molecules and your finger is rather adhesive than cohesive..
2:25 I spot an Australian flag. Have a nice day and ciao for now
Wondering his Videos 🤯
Power of gravity = mg(v_{z0}+gt)
ай 🙀 бедный бедный арбузик типерь ему крышка 😶
1:09 "The grape falls a bit slower than the melon" I'd have thought the WATERMELON would fall a bit slower, as it has larger surface area and therefore generates more air resistance. Was this a cox-up?
For objects of the same shape, their surface areas are proportional to the _square_ of their width, while their volumes - and thus mass if their densities are similar - are proportional to the _cube_ of their width.
That means that if the melon is roughly 10 times wider than the grape, it has a 10 x 10 = 100 times larger surface area, but a 10 x 10 x 10 = 1000 times larger volume/mass than the grape. The grape therefore has a 10 times larger area relative to its mass than the melon and is thus much more affected by air resistance than the melon.
that was an amazing explanation although all's I heard was words!
So... I wonder what the significance of he carefully framed Australian flag in the background is?
Because he is in Australua? Maybe.
+Assin63 nope Brian is from Manchester UK
+Bernie Zelvis this episode was filmed in Australia.
+JZoidberg aha! A true international
Bernie Zelvis Australia's not down under just further over on the plane.
oh no! that's the adhesive forces which holds them together?
Scientists might say that they save lives but he should have given the melon to my hungry belly
Isaac Newton - perhaps the greatest scientist who has ever lived. He discovered the existence of gravity. He is remembered prominently to this day in a memorial at westminster abbey. Sir Isaac Newton said "this most beautiful system of sun, planets and comets could only proceed from the counsel and dominion of an intelligent and powerful Being. This Being governs all things not as the soul of the world but as Lord over all and on account of His dominion He is wont to be called Lord God".
Globetard
@@Bendy-oceans-lol You are a mere dealer in words, but no lover of action and truth. Your aim is not to be a practitioner of good, but a clever disputant, a cunning sophist.
How can I keep the Love of God to myself? I feel we never feel real happiness because we take pride in our knowledge and ability as humans. And we do too much. We ought to discover the science around us and use it to help one another - but not without considering the importance of the Love and Peace God gives through the manifestation of Himself through Jesus Christ.
The next Attenborough
+MightyJustas you right a devious BBC fraud trying to promote political agenda hidden as science but in reality nothing more than germ cult propoganda
Lee Harris is that some new evolution term nuts that develop wings because they had billions of years as if that's all that's needed time.
+Sham Pain Intelligent design proponent with a far less than intelligent riposte.
Is it just me or does this physicist look like a titan from attack on titan?
“This Physicist” lol.
That’s Brian Cox you’re talking about!
@@generalerica4123 Ohhhh! Thanks 👍. Brian Cox looks like a titan from attack on titan.
Red5Wormy that’s it! Way better!
Hahaah daaamn so true!!!
Watermelon was a paid actor.
That watermelon could have gone to people who needed it
He needed it for his demonstration.
+Ryan Simpson Your internet connection should go to people who need it.
lol
+Ryan Simpson A router is not an internet connection, an internet connection is the cabling that comes to your house
It will evaporate and fall as rain
No such thing as pull. Things move by applying pressure.
So you are claiming magnetism is fake now too? Wow. You flatters look worse and worse every day. LOL.
He proved density!
Username checks out. You obviously don't know what density is, or how it works.
do you want to get ants? Because this is how you get ants..
I know mathematicians who are convinced the universe is, essentially, mathematical in nature. Here we have a physicist who is convinced life is subject to our laws of physics. The massive in-depth knowledge we get from specialisation is incredibly valuable but the danger is thinking their specialisation is the be all and end all.
Mathematics and physics are amongst our attempts to explain what we are witnessing. Whilst what we are witnessing may not change, our understanding of it probably will. So far it has been constantly changing and it's presumptuous to assume we know it all now.
I'm thoroughly impressed with Brian's enthusiasm and wonder and it would be greater still if he got hold of the right end of the stick. What these creatures are doing informs our physics, not the other way round.
i waiting for moment of falling elephant
Such a waste of a good melon xd I would of ate it if there was no floor bacteria
Waste of a good watermelon
Education is never wasteful...😅
@@thynaklosgrondh8266I said a watermelon. You claim a watermelon is education?
Wasting food?
Yoooo
the paper doesn't fall because paper is lighter than water. Hold the paper vertical and the paper falls since air is under it not water. Density is observable gravity isn't. Electro magnetic forces are not causes. They are math equations to describe the innate uncaused need of matter to find equillibrium.
actually if gravity were true according to newton, then all falling bodies would also cause earth to slightly move in space even if so small. This has never been observed. Gravity is a myth made up to prove mathematical consistency. Gravity isn't a force. Objects vibrating at specific densities simply merge to their associative density in quantized non curved space times.
Yes, that’s why newtons theory was chugged out the window when Einstein came along.
You’re right: Gravity isn’t a force, rather, it’s the curvature of spacetime itself.
@@generalerica4123 Newton's theory is still a valid way of viewing and teaching the world in a less complex way of thinking.
Galiywas wrong, we.have been wrong for 400 years, everything does NOT fall at the same rate
Go back school
he's just wasting foog
Kurosaki Ichigo
And you're a weeb.
aaww that poor foog! that foog had a loving family
So gravity isn't a force, it's an effect based in pseudo 4d geometry fallaciously using time as a dimension. Thanks... welcome to flat earth
FREEMASON TV ACTOR
What a waste of food. :P
Density and buoyancy, no need for gravity!
Nonsense!
Gravity is absolutely necessery, you cant have buoyancy without it! The formula for buoyancy itself has a G in it, G for gravity
Are u an electric universe crank??
If the force of gravity really is pulling the grape down, it shouldn't bounce...
Well when a body is pulled in a direction (like grape is pulled in downward direction ) it is not necessary that that thing will be going in that direction take a example of tug of war.
it was jesus
the 'bounce' happens because the grape has a certain amount of elasticity - to return to its original shape. The melon has this property too, but is significantly lower. This elasticity or ability to return to its original shape is what causes the object to bounce, and why objects with very high elasticity (such as a rubber ball) will bounce much higher than other objects.
grafaty on earth is a lie
KAREN
foloow Yeet_Splodes lol ya
the melon falls lol
Everything created by God.
Before create human. God says u won't find any mistakes in my creation. God is great . Human knowledge is nonsense.
(gravity) the theory that's never been proven! thing's fall through different mediums, depending on their relative density to each other. air and water are both fluids, only ones a gas and the other a liquid, objects fall down onto a motionless plane at 9.82m\s2 because they are simply heavier than the air surrounding them. this is just the rate things fall through that perticular medium. a helium balloon will fall upwards because it's more boyant than the air surrounding it. drop a rock into a lake, it will sink because it's heavier than the water surrounding it. drop a cork into the lake, it will float because it's more boyant than the water surrounding it. this is why birds,... insects,... smoke,... air_balloons,... arn't effected!.... this is also the reason whales,... big sharks,... cruise liners,... don't get sucked down onto the seabed,... because ( gravity) doesn't exist! the earth has no curvature! ....
the earth isn't moving!...
the vacuum of space is a hoax!
... I hope you aren't for real...
What you just said... is one of the most insanely idiotic things I’ve ever heard.
He sounds like one of those batshit electric universe cranks