I like when she says "we" like I've contributed something simply because I'm part of our human family. I'll go ahead and accept the benefits of being part genius by default. Thanks also to my ancestors and all the hard workers that paved the way for my life to be so awesome.

Narrator is so ridiculously talented.. gorgeous, beautiful voice, and a mathematician. Be still my heart

What made the hammer and feather demonstration on the moon so entertaining was the fact that a total and utter mastery of the laws of motion was required just to get to the moon with a reasonable amount of fuel in the first place.

Fifty minutes in and I am sad that this video is almost over and that there is only one more episode in the series. I wish it could go on for ever. :(

The way she told us that the room 1 is gonna be hers. Something so adorable and magical abt her presentation.

The one girl's description of infinity was so cute: "it's the biggest number that you could possibly need". I also liked how Hannah seemed relieved when the psychiatrist said that obsession with math wouldn't cause mental illness.

Just brilliant. Haven't worked my head so hard since school. 40 years ago.

This sort of excellent programming is exactly why we should NOT defund the BBC

The material is pretty basic, but Dr. Fry is just so charming and adorable. Hard not to enjoy this series.

loved this episode, very interesting stuff

you could ask everyone at the Infinity Hotel to move down a room so you could have the first one, but it would take forever.

*Legend has it,* when Hannah was in 4th Grade, her mathematics teacher once asked: _Which numbers between 1 and 10 can be divided by 2?_ _All,_ replied the little Hannah.

Holy hell... that voice.... I learned more than my 25 years of schooling!

love those drawings of the scientists made out of their famous equations!

Where is that wonderful garden? Also, captions are perfect, needed, and appreciated. Nice filming.

"It's not just infinity that's got curves" woah woah woah, steady on Hannah! 🤣🤣

If we go by the story of Ramanujan, we would be able to conclude that mathematics is the language that existed way before we came into existence.

5:28 I fell into a trap when my friend, who was a skydiver, told me that after he had spent a month in hospital, that he had lost so much weight that when he went skydiving with his team he had to put weights onto his belt to keep up. You need to read Aristotle's Meteorology to understand his physics.

I learned early ,while skipping class to study Relativity, that, at least in the 70s, there was this widely accepted distinction: Mathematics is an edifice that only has to satisfy it's own internal logic (in the form of proofs) all of this is based on logical axioms i.e. self evident propositions. This is called an "a priori". Now Physics, on the other hand, must answer to a completely different criterion that being Empirical i.e. experimental evidence. The language of Physics however, is Mathematics. The thing is, is that; mathematics itself seems to predict truth in Physics like how Einstein's fascination with non-Euclidean Geometry and topology i.e. (mathematicians Reiman and Henri Poincarè) allowed his formation of General Relativity. I doubt that Henri Poincarè would've ever imagined that his work would somehow lead to a deeper revolutionary topological understanding of Gravity!

The UK has Hannah Frye and Alice Roberts. We have Donald Trump and 150 million flat-earthers. Very sad.

“Infinity is a slippery beast” 🤔

It is hard to imagine a person so ignorant as to not know this stuff, but to be knowledgeable enough to be interested.

Love these videos. R2 D2's schizophrenic twin, R2 R0 likes them too.

I discovered Hannah Fry, of that I'm sure.

This idea of walking forward with the camera behind you, and every 3 seconds you look backward at the camera is SO contrived. She can't see us. What is she looking back at? Slow motion. Drums banging in the background. The series "Coast" used to do a lot of this. Drove me mad.

Never knew Madhuri Dixit is a Mathematician, wow 😍😍😍😍

Hans Christian Ørsted was the first to notice a link between magnetism and electricity

Heavier objects also have a stronger gravitational field so they do fall faster. Or the lighter object is accelerating away. I always forget.

I love math. I am more in love with math now. Moving on to three.

At the "Infinity Hotel", there is no full status. There's always a room available. Always.

18:37 For a second there I thought Richard Branson on another one of his fun hobbies.

32:15 Strolling around an Iron Cross - "Nothing controversial here......."

Book suggestion: What Is Mathematics?: The Greatest Detective Story Never Told (The Truth Series Book 17) by Dr Thomas Stark

Her producer probably told her not to move the copper coil up and down instead of right left for appearances.

Maths are the voice of reality. Trust maths blindly and move. For me maths is just discovered, but for sure we invented the symbols to describe it. I can say that full reality math is toward the infinity while our findings are just around very few digits if not yet less than 1.

7:35 this, to me, proves that men did land on the moon, I'm fairly certain there was no massive vacuum facility like the one in a Brian cox programme to stage this experiment

The answer is because maths is language composed of proofs and theorems, we choose to use it to describe the world when we use it to describe the world we can now manipulate out description using these rules.

What is cool to me is scientists finding things in reality ( particles) with math only.

I didn't know that Harry Shearer was a mathematician.

😍 Thanks #hanna Fry for adding CC to VID, it gives me happiness in the endless source of human knowledge Thank you very much ❤️❤️❤️

49:21 Not having the time I would still like to see a table where Infinity is added, subtracted (from & something subtracted from), multiplied, divided, & all other operations & permutations with normal, large, extremely large (infinity minus one which might be labeled with a backwards "L"), imaginary, another infinity & any other which I don't know of.

Newton & Einstein get all the credit. Maxwell should be right there with them.

So according to physics , objects do not actually fall at the same time. If an object has more mass, it falls faster. We don't see it but it does. Aristoteles was right.

Nanagon infinity opens the door.

legend has it that many school students silently curse newton every day before sleep

Yes, I do love Hannah. Of course I do! But I think she got something wrong. Her calculations at ~ 13:30 didn't take into account that she wasn't in freefall. She was travelling down what I'd estimate to be a 30' incline. Furthermore, we don't have the static and sliding coefficients of the friction of her sliding line. Without that, we can't calculate an accurate measure of the actual forces acting on her. Still, I suspect she knows all this, but she wanted to make it simpler for people unfamiliar with maths and/ or physics to understand.

Whether mathematics is discovered or invented comes down to your definition of mathematics. I define mathematics to be the propagation of truth, that is, define some axioms and find inherent truths of this system. In this regard, those truths were always there to be found, and those systems were always there to be explored. It's all discovered in my opinion.

13:23 : About infinity and that there's no real actual infinity: - except for universe, which is physical, and might very well be infinite...

Should have covered some areas in mathematical economics, such as the role of GAME THEORY.

22:34 - Yeah, and I bet I know just how Faraday came up with that idea.

22:06 *oersted's* experiment

beautiful

"nothing controversial here" - she says as she walks around an Iron Cross. 😉

does anyone know where I can find the portraits of the mathematicians?

suddenly i want to be a mathematician

7:00 - it's a bit of a shame we get to see Galileo's "light thing attached to heavy thing" argument for things dropping at the same speed without a single word of explanation. Similarly, later (or maybe next programme), we don't get Cantor's diagonal argument for the greater size of the reals than the integers, just a bit of sort of plausible hand-waving. I've enjoyed the 3 programmes, but they seem to be desperate not to challenge anyone who isn't familiar with the material. At the risk of boring people who are. That said, if I had the first idea how to make a decent TV programme, I'd be making them not commenting on them. Summary: insofar as it went, a good series, but perhaps a bit light on actual mathematics.

What is wrong with the file? Cannot access it correctly. Episodes 1 and 3 are fine -i it’s epsode two that bugs. Can you please fix it? Thanks!!

Oops. They saw a wave where a stream of matter was departing the sun. That can only occur with a liquid surface. So the sun must be liquid hydrogen metal, with a plasma atmosphere.

Would it be fair to conclude that the numbers were always there, waiting to be discovered. How they can be manipulated was invented?

The first person to seriously study infinities was Geog Cantor. Worth looking him up. For instance some infinities are bigger than others :0) Just keep adding all the normal integers: 1+2+3+4 ... _THEN just keep adding even numbers: 2+4+6+8 ... both series can go on forever; BUT one _MUST_ be twice the size of the other!

Excellent, except that Faraday did not discover the connection between magnetism and electricity. Hans Christian Oersted did: en.wikipedia.org/wiki/Hans_Christian_%C3%98rsted .

If all our young students would be taught by someone like Hannah Fry, they'd all be geniuses. Either that, or they'd all be reduced to whimpering piles of hormones.

How does Cantor (so) differ from Zeno?

Infinity is curious. I imagine that if a circle had an infinite circumference, that circumference would be a straight line.

Dr Richard Feynman " new ideas needed".

Chuck Norris counted to Infinity... Twice!

Everytime you say math I understand mass

Not about the video, but 3 adverds one after the other before the video even starts? What happened to youtube?

i'm crazy about mathematics

Pretty and smart!! Wow🤩😁

You forgot the resistance of air.😱

9:36 So Newton _never_ said "I frame no hypothesis"?

The hamer and the feather fall with the same speed in a vacuum here on earth and on the moon. Or on Mars for that matter. Or on any planet or moon or even on a comet. If you have a cylindrical vacuum container big enough for that experiment and you place it in outer space, then what will the hammer and the feather do when you let go of them? I theorize that they will stay where you let go of them ... if you can let go of them without giving them the slightest push?

12:30 Thought Hannah was going to tell us how much she weighs ;)

Wait, there's an infinite hotel in London? I'll be damned.

Existence, existence again, existence again again, existence again again again...

If the hotel is booked up... then it doesn't have infinite rooms. Why are you moving everyone by one room? That makes no sense. Especially when Hannah can just share my room. So stupid.

45:27 The argument of the uncountability of reals is misrepresented. By the argument Hannah Fry presents here, the rational numbers would be uncountable, too. But they are countable.

I get network error while trying to download is there a problem at your end.

Without thought process human kind would be like nothing. Sitting by the beach either you can enjoy the horizon or imagine what's beyond that. Infinity is the realization whatever knowledge or mass that we have amounted or acquired or quantified is not to the extent of one hundred percent. Infinity can be assessed by placing yourself ideally within a circle as a point and thereafter when you reach either side of the circumference you realize that there is larger circle beyond from where you stand.

45:30 The sketched "proof" of Cantor's theorem that [0,1] is uncountable, is totally wrong. The argument given would apply to the set of rationals, which is countable.

"No energy system can produce sum useful energy in excess of the total energy put into constructing it" (The Fifth Law).

41:31 because im really 12 at heart.

Where is that amazing sculptured park they keep coming back to?

@33:28 they just finish talking about how space has many possible variations ... and they happen to be platonic solids ... which all have a common root generic shape ... so the lowest common denominator between all of the platonics is a part of the very first shape primarily ... which is 4 equilateral triangles ... so whatever is making waves in the universe for creation happen uses that pattern to transmit it's basic shape ... from there energy level ( electro magnetic force ) takes over and makes everything from there ... now it's just a matter of figuring out the energy levels and frequencies and poof you can make or replicate anything from a power source using a base substrate of a primary constituent to what you want to make ...

Is not that mathematical description of universe in some ways is just approximation, for example we have perfect point, line, circle in geometry but there is no perfect point, line, circle in the universe other than inside our head.

Why do you need to ask those at room 1 to move to room 2? You can just ask the front desk to add 1 room to infinity for you to stay in. Infinity +1 = still infinity😁

Where is that ZIPLINE thing?! I wanna goooo!

Am I the only one here for school cuz of corona

So, as electricity travels along a transmission line, it's the electromagnetic field weakening that causes the loss of electricity over distance? Is that a reaction between the energy and the wire and maybe the planet, or like loss of velocity due to the distance travelled verses initial energy, entropy, thropacy from friction sort of thing .. Electricity losing energy or potential distance travelled due to friction, is that a bizzarre concept??.. So much I want to learn.

Infinity is a constructive idea, I mean you can build mathematics with both finite sets and infinite sets ... the question is when to apply each ... me? ... I would go for finite sets ...

If you lived in Sydney (Australia) and you took 4 consecutive left hand turns you would definitely NOT end up where you started!

37:40 Use 1 ruler & you get X. Use 2 & you get a number slightly smaller. Using 3 or more do you get the same percentage smaller with each step? Can this be used in determining Pi? I think the word Mantissa as the numbers to the right of a decimal point becomes an approximation of the correct value as in 1/3 becomes 1.33333 & so on. This would go beyond, like headlights, that which you could see with any large numbers of rulers.

yo mr douge hello 7f children

If you want to understand math, INDIA, is the place, Vedic math and many more, while western civilization were hunting and gathering ,Indians were talking mathematics, in so many ways...

The vedios are awesome, but why are the subtitles so poor...

confused, infinite hotel as she described it, shes moves into room 1 who moved into room 2 and so on...how is that applicable in the real world when the last person now has to move into room 1.....bad example? or am I missing something

What’s the difference between infinity and unlimited

1:01 and 2:47 Realest answer ever! 🤣

Can you write an equation that doesn't require any calculation, without using numbers?