The Power of Gravity | Wonders of Life w/ Prof Brian Cox | BBC Earth

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  • Опубликовано: 20 дек 2024

Комментарии • 169

  • @tomcooney183
    @tomcooney183 9 лет назад +33

    He has an incredibly good handle on physics all the while being amazingly good at explaining how stuff works.

    • @Sharon-David-ChristianPilgrim
      @Sharon-David-ChristianPilgrim Год назад

      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.

    • @RedTail1-1
      @RedTail1-1 5 месяцев назад

      ​@@Sharon-David-ChristianPilgrimno thanks. Keep it to yourself

    • @Sharon-David-ChristianPilgrim
      @Sharon-David-ChristianPilgrim 5 месяцев назад

      @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.

  • @JiFan
    @JiFan 8 лет назад +24

    "A melon...doesn't bounce." Sexiest line ever ;D

  • @joeblack3660
    @joeblack3660 8 лет назад +33

    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.

    • @generalerica4123
      @generalerica4123 4 года назад +2

      Joe Black Comment of the Year, three years ago.

  • @amjadahmad5473
    @amjadahmad5473 3 года назад +4

    Brain Cox you are my real professor I Love you sir

  • @pianoman159
    @pianoman159 9 лет назад +8

    These videos are great. Thanks BBC!!

    • @MultiShampain
      @MultiShampain 9 лет назад +1

      +Noel PerezCortes they are if you want you brain turned into the same mush as the melon

    • @pianoman159
      @pianoman159 9 лет назад +1

      Then i guess i have a mushy brain...lol

  • @devaraputra8830
    @devaraputra8830 3 года назад +6

    Our every second of live is surrounded by the law of physics. That's quite magnificent!😁

  • @brettweerasooriya3776
    @brettweerasooriya3776 4 года назад +7

    He forgot to mention the grape also undergoes elastic deformation hence why it bounces and the water melon cannot because it’s brittle.

    • @RedTail1-1
      @RedTail1-1 5 месяцев назад

      It's not brittle. That's also not quite the reason this happens either.

  • @michaeleber4752
    @michaeleber4752 2 года назад +1

    His wife: You are cleaning that mess up Brian!!!

  • @pbp6741
    @pbp6741 9 лет назад +36

    It's almost like his main point got cut off.

    • @tomcooney183
      @tomcooney183 9 лет назад +1

      +Paul Bryan Platt Dude your toasted :D

    • @elimgarak7090
      @elimgarak7090 Год назад

      Perhaps they just wanted to show him licking his finger lmao

  • @OussamaErraji
    @OussamaErraji 9 лет назад +4

    0:40 the outcome was so impredictable...rip melon

  • @aliagree8448
    @aliagree8448 3 года назад +1

    Useful and exciting

  • @roandrm2
    @roandrm2 9 лет назад +27

    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.

    • @gracefoster-christie3945
      @gracefoster-christie3945 7 лет назад +1

      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.

    • @lumeme9352
      @lumeme9352 4 года назад

      good joke, actually made me snort a little xD

  • @shalvvisen3154
    @shalvvisen3154 6 лет назад +2

    *Drops watermelon*
    Brian Cox's Game of throne moment

  • @alvkarthik2018
    @alvkarthik2018 4 года назад +1

    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..

    • @tgstudio85
      @tgstudio85 3 года назад

      What you describe is called inertia.

  • @rosemariekuptana8593
    @rosemariekuptana8593 Год назад +3

    I wonder why humanity has not been able to harness gravity?

    • @wavydaveyparker
      @wavydaveyparker Год назад +3

      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.

    • @rosemariekuptana8593
      @rosemariekuptana8593 Год назад +1

      @Wavy Davey yes I understand. For instance, would humans use gravity to travel or move giant boulders of old.?

    • @wavydaveyparker
      @wavydaveyparker Год назад +2

      @@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.

  • @asifrocker2012
    @asifrocker2012 6 лет назад +10

    I wish he was my physic teacher

    • @fmmchannel6365
      @fmmchannel6365 3 года назад +1

      I think the same sir.

    • @Bendy-oceans-lol
      @Bendy-oceans-lol 2 года назад +1

      You should watch ‘beyond the imaginary curve’. That’s real intelligence

    • @justin9202
      @justin9202 Год назад

      ​@@Bendy-oceans-lol is that a flerf video

    • @Bendy-oceans-lol
      @Bendy-oceans-lol Год назад

      @@justin9202 you haven’t even got your own mind yet my little fruitcake.
      God bless

  • @edwardchege2623
    @edwardchege2623 Год назад +1

    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?

    • @anitaojotoro
      @anitaojotoro Год назад +2

      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.

    • @edwardchege2623
      @edwardchege2623 Год назад +1

      @@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.

    • @wavydaveyparker
      @wavydaveyparker Год назад +3

      @@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.

  • @anandapatmanabhansu
    @anandapatmanabhansu Год назад +5

    Sir does how is a feather and a stone thrown in vaccum reach bottom at the same time.

    • @anitaojotoro
      @anitaojotoro Год назад +1

      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?

    • @anandapatmanabhansu
      @anandapatmanabhansu Год назад +2

      @@anitaojotoro thankyou so much for the reply ❤, how does the m cancels.

    • @anitaojotoro
      @anitaojotoro Год назад +2

      @@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.

    • @anandapatmanabhansu
      @anandapatmanabhansu Год назад +2

      @@anitaojotoro thankyou so much sir❤

    • @anitaojotoro
      @anitaojotoro Год назад +2

      @@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! 😁

  • @tommythebaastud8159
    @tommythebaastud8159 2 года назад +1

    What about density or weight?

    • @liftingtheveil8361
      @liftingtheveil8361 2 года назад

      It doesn't suit the narrative.

    • @kitcanyon658
      @kitcanyon658 2 года назад

      That's the entire point of dropping things that aren't the same and still fall at the same rate.

  • @sabarishssibi3382
    @sabarishssibi3382 3 года назад

    Wondering his Videos 🤯

  • @লেফাফাদুরস্ত
    @লেফাফাদুরস্ত 3 года назад +1

    Scientists might say that they save lives but he should have given the melon to my hungry belly

  • @thegangsta1526
    @thegangsta1526 Год назад

    All good but the force b/w water molecules and your finger is rather adhesive than cohesive..

  • @Sharon-David-ChristianPilgrim
    @Sharon-David-ChristianPilgrim Год назад +1

    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".

    • @Bendy-oceans-lol
      @Bendy-oceans-lol Год назад

      Globetard

    • @Sharon-David-ChristianPilgrim
      @Sharon-David-ChristianPilgrim Год назад

      @@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.

    • @Sharon-David-ChristianPilgrim
      @Sharon-David-ChristianPilgrim Год назад

      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.

  • @whiteandblackzebra7005
    @whiteandblackzebra7005 4 года назад +1

    2:25 I spot an Australian flag. Have a nice day and ciao for now

  • @esel-osliki66
    @esel-osliki66 2 года назад +1

    ай 🙀 бедный бедный арбузик типерь ему крышка 😶

  • @sarikanigar5936
    @sarikanigar5936 5 лет назад +8

    I feel sorry for the melon. It was so juicy and attractive :(
    The beetle however was enjoyable to watch, beautifully bouncing...

  • @jonbloor5064
    @jonbloor5064 8 лет назад +2

    that was an amazing explanation although all's I heard was words!

  • @sams6306
    @sams6306 6 лет назад

    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?

    • @fromnorway643
      @fromnorway643 5 лет назад +4

      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.

  • @MightyJustas
    @MightyJustas 9 лет назад +1

    The next Attenborough

    • @MultiShampain
      @MultiShampain 9 лет назад

      +MightyJustas you right a devious BBC fraud trying to promote political agenda hidden as science but in reality nothing more than germ cult propoganda

    • @MultiShampain
      @MultiShampain 9 лет назад

      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.

    • @LeeHarris
      @LeeHarris 9 лет назад

      +Sham Pain Intelligent design proponent with a far less than intelligent riposte.

  • @TBone2809
    @TBone2809 9 лет назад +9

    That watermelon could have gone to people who needed it

    • @TheLunnyBear
      @TheLunnyBear 9 лет назад +25

      He needed it for his demonstration.

    • @LeeHarris
      @LeeHarris 9 лет назад +7

      +Ryan Simpson Your internet connection should go to people who need it.

    • @TBone2809
      @TBone2809 9 лет назад

      lol

    • @tomcooney183
      @tomcooney183 9 лет назад

      +Ryan Simpson A router is not an internet connection, an internet connection is the cabling that comes to your house

    • @wesbrown6364
      @wesbrown6364 7 лет назад

      It will evaporate and fall as rain

  • @red5wormy165
    @red5wormy165 4 года назад +1

    Is it just me or does this physicist look like a titan from attack on titan?

    • @generalerica4123
      @generalerica4123 4 года назад +1

      “This Physicist” lol.
      That’s Brian Cox you’re talking about!

    • @red5wormy165
      @red5wormy165 4 года назад +2

      @@generalerica4123 Ohhhh! Thanks 👍. Brian Cox looks like a titan from attack on titan.

    • @generalerica4123
      @generalerica4123 4 года назад

      Red5Wormy that’s it! Way better!

    • @NanocDark99
      @NanocDark99 2 года назад +1

      Hahaah daaamn so true!!!

  • @deepspacedusty8082
    @deepspacedusty8082 7 лет назад

    oh no! that's the adhesive forces which holds them together?

  • @DelylePolet
    @DelylePolet 9 лет назад +1

    Power of gravity = mg(v_{z0}+gt)

  • @bernzeppi
    @bernzeppi 9 лет назад +5

    So... I wonder what the significance of he carefully framed Australian flag in the background is?

    • @assin6377
      @assin6377 9 лет назад

      Because he is in Australua? Maybe.

    • @emmaswan6219
      @emmaswan6219 8 лет назад

      +Assin63 nope Brian is from Manchester UK

    • @nu.wa.n
      @nu.wa.n 8 лет назад +8

      +Bernie Zelvis this episode was filmed in Australia.

    • @bernzeppi
      @bernzeppi 8 лет назад

      +JZoidberg aha! A true international

    • @jamespylesofflatearthinfo8411
      @jamespylesofflatearthinfo8411 7 лет назад +2

      Bernie Zelvis Australia's not down under just further over on the plane.

  • @cognitivedissonance4413
    @cognitivedissonance4413 7 лет назад +3

    He proved density!

    • @lewisnorth1188
      @lewisnorth1188 6 лет назад +4

      Username checks out. You obviously don't know what density is, or how it works.

  • @earthwizz
    @earthwizz 9 лет назад +2

    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.

  • @caterpaw5107
    @caterpaw5107 3 года назад +1

    Watermelon was a paid actor.

  • @HaveorcArts
    @HaveorcArts Месяц назад

    It's 'Mavity' Brian... As well you know 😂

  • @imomedvidek
    @imomedvidek 4 месяца назад

    do you want to get ants? Because this is how you get ants..

  • @Bendy-oceans-lol
    @Bendy-oceans-lol 2 года назад

    No such thing as pull. Things move by applying pressure.

    • @kitcanyon658
      @kitcanyon658 2 года назад

      So you are claiming magnetism is fake now too? Wow. You flatters look worse and worse every day. LOL.

  • @RainWalking
    @RainWalking 9 лет назад +6

    Waste of a good watermelon

    • @thynaklosgrondh8266
      @thynaklosgrondh8266 Год назад

      Education is never wasteful...😅

    • @RainWalking
      @RainWalking Год назад

      @@thynaklosgrondh8266I said a watermelon. You claim a watermelon is education?

  • @ceres_
    @ceres_ Год назад

    i waiting for moment of falling elephant

  • @f0tbl.editz096
    @f0tbl.editz096 3 года назад

    Yoooo

  • @fluffyfox743
    @fluffyfox743 8 лет назад +1

    Such a waste of a good melon xd I would of ate it if there was no floor bacteria

  • @greymears6411
    @greymears6411 7 лет назад +5

    FREEMASON TV ACTOR

  • @jeasongeorge8448
    @jeasongeorge8448 8 лет назад +1

    he's just wasting foog

    • @spinytextbook9405
      @spinytextbook9405 8 лет назад

      Kurosaki Ichigo
      And you're a weeb.

    • @lumeme9352
      @lumeme9352 4 года назад +1

      aaww that poor foog! that foog had a loving family

  • @eliphasphiri4090
    @eliphasphiri4090 Год назад

    Galiywas wrong, we.have been wrong for 400 years, everything does NOT fall at the same rate

  • @sensualgoat3718
    @sensualgoat3718 Год назад

    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

  • @excambo
    @excambo 7 месяцев назад

    Wasting food?

  • @nathereklaw5372
    @nathereklaw5372 6 лет назад +1

    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.

    • @generalerica4123
      @generalerica4123 4 года назад +4

      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.

    •  3 года назад +2

      @@generalerica4123 Newton's theory is still a valid way of viewing and teaching the world in a less complex way of thinking.

  • @nathereklaw5372
    @nathereklaw5372 6 лет назад

    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.

  • @emmettjustice6660
    @emmettjustice6660 6 лет назад +1

    Density and buoyancy, no need for gravity!

    • @fromnorway643
      @fromnorway643 5 лет назад +1

      Nonsense!

    •  3 года назад +3

      Gravity is absolutely necessery, you cant have buoyancy without it! The formula for buoyancy itself has a G in it, G for gravity

    • @AceofDlamonds
      @AceofDlamonds 3 года назад

      Are u an electric universe crank??

  • @TheaDragonSpirit
    @TheaDragonSpirit 7 лет назад +1

    What a waste of food. :P

  • @Z1ZOOOOO
    @Z1ZOOOOO 5 лет назад

    foloow Yeet_Splodes lol ya

    • @Z1ZOOOOO
      @Z1ZOOOOO 5 лет назад

      the melon falls lol

  • @frankyuk
    @frankyuk 8 лет назад +2

    If the force of gravity really is pulling the grape down, it shouldn't bounce...

    • @pijushmondal6007
      @pijushmondal6007 8 лет назад

      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.

    • @susan45tb
      @susan45tb 8 лет назад +1

      it was jesus

    • @fbwhitey
      @fbwhitey 7 лет назад +3

      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.

  • @MrTruemassa
    @MrTruemassa 5 лет назад

    grafaty on earth is a lie

  • @highendcustomdesigncaraudi1777
    @highendcustomdesigncaraudi1777 3 года назад

    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.

  • @waynemason6645
    @waynemason6645 6 лет назад +1

    (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!

    • @RobertMcBride-is-cool
      @RobertMcBride-is-cool 6 лет назад +1

      ... I hope you aren't for real...

    • @generalerica4123
      @generalerica4123 4 года назад

      What you just said... is one of the most insanely idiotic things I’ve ever heard.

    • @AceofDlamonds
      @AceofDlamonds 3 года назад

      He sounds like one of those batshit electric universe cranks