How much does a video weigh? - Michael Stevens of Vsauce

Koliko je težak jedan video? - Majkl Stivens iz Vsauce-a

Prevodilac: Biljana Jovanov Lektor: Mile Živković

Bean bags are awesome.

Vreće za sedenje su fenomenalne.

Ali, vidim tamo nekoliko ljudi

But I see a few people out there who are standing,

koji stoje,

we've got some over here,

ima nekih i ovde,

and standing takes more work than lounging.

i stajanje zahteva više truda od ležanja.

Using the Live Strong Organization's online database

Koristeći podatke sa interneta organizacije "Živeti jako"

of weight loss resources,

o metodama za gubljenje težine,

you can calculate

možete da izračunate

that by the time I'm done with this speech,

da kada završim ovaj govor,

those of you who are standing

vi koji stojite ćete

will have burned 7.5 more calories

sagoreti 7,5 više kalorija

than those of you who are bean-bagging it.

od vas koji leškarite.

(Laughter)

Okay, here's a question,

Okej, evo pitanja,

speaking of weight loss, specifically weight,

govoreći o gubitku težine, preciznije o težini,

this speech is live.

ovaj govor ide uživo.

I'm actually here in front of you guys,

Ja sam upravo ovde ispred vas,

we're all here together.

svi smo zajedno ovde.

But this speech is being recorded

Ali, ovaj govor se snima

and it will become a video that people can access all over the world

i postaće video

kojem ljudi širom sveta mogu da pristupe

on computers, mobile devices,

preko kompjutera,

mobilnih uređaja,

televisions.

televizije.

I weight about 190 pounds.

Ja sam težak oko 86 kilograma.

How much will the video weigh?

Koliko će video biti težak?

Asking questions like that

Takva pitanja

su tema svake nedelje na mom kanalu "Vsauce."

is what I do every week on my channel Vsauce.

Poslednje dve godine

For the last two years,

I have been asking really fun questions,

postavljam veoma zanimljiva pitanja,

mind-boggling questions,

zapanjujuća pitanja,

and approaching them as sincerely as I can,

i pristupam im

najiskrenije što mogu,

celebrating scientific concepts and scientists.

slaveći naučne koncepte i naučnike.

And I research and write

I ja istražujem

i pišem

and produce and host

i stvaram,

and edit and upload

vodim,

menjam

i postavljam

and run the social media all by myself,

i sam vodim društvene mreže,

but it's not lonely,

ali, nije samotno,

because Vsauce has more than 2 million subscribers,

jer "Vsauce" ima preko 2 miliona pretplatnika

and every month, my videos are seen by more than 20 million people.

i svakog meseca, moje snimke vidi

više od 20 miliona ljudi.

Yeah.

Da.

(Applause)

It's very exciting.

Veoma je uzbudljivo.

I've found that asking a strange question is a great way to get people in,

Shvatio sam da su čudna pitanja

sjajan način da privučete ljude,

not just people, but fans.

ne samo ljude, nego fanove.

And fans are different than just viewers or an audience,

A fanovi se razlikuju od gledalaca ili publike

because fans want to come back.

jer fanovi žele da se vrate.

They subscribe to you on YouTube

Oni te prate na Jutjubu

and they want to watch everything you've made

i žele da vide sve što napraviš

and everything you plan to make in the future

i sve što planiraš da napraviš u budućnosti

because we are curious people

jer mi smo radoznali ljudi

and sparking curiosity is great bait.

i pobuđivanje radoznalosti je sjajan mamac.

It's a great way to catch a human.

To je sjajan način da namamite čoveka.

And once you've caught them,

I jednom kad ste ga uhvatili,

you have this captive audience that you can,

dobijate tu očaranu publiku, koju možete,

with the goal in mind of answering the question,

sa namerom da odgovarate na pitanja,

accidentally teach a lot of things to.

slučajno naučiti mnogo toga.

So, let's take a look at some of my videos.

Hajde da pogledamo neke od mojih videa.

Here are eight of them.

Ovde ih je osam.

But down here in the lower-right corner,

Ali, ovde u donjem desnom uglu,

"Koje boje je ogledalo?"

"What Color is a Mirror?"

When people see that,

Kada vidite to,

it's very difficult not to click, because you think,

Teško je da ne kliknete, jer mislite:

"Come on, are you serious?

"Ma daj, ozbiljno?

How could you possibly answer that question?"

Kako bi uopšte mogao da odgovoriš na to pitanje?"

Well, so far, 7.6 million people have watched

Do sada je 7,6 miliona ljudi pregledalo

this five-minute video about what color a mirror is.

ovaj petominutni video o boji ogledala.

And in that episode, I answer the question

I u ovoj epizodi ja odgovaram na pitanje

and I get a chance to explain what would normally be kind of dry topics:

i imam priliku da objasnim

teme koje bi inače bile suvoparne:

optics,

optiku,

difuznu i tačkastu refleksiju,

diffuse versus specular reflection,

how light works, how light works on the retina,

kako funkcioniše svetlost,

kako svetlost deluje na mrežnjaču,

and even the etymology of color terms

pa čak i etimologiju naziva za boje

like white and black.

kao što su belo i crno.

Okay, spoiler alert:

Okej, sad ću vam upropastiti gledanje:

mirrors are not clear,

ogledala nisu čista,

they are not silvery,

nisu srebrnasta

like they're often illustrated.

kao što se često predstavljaju.

Mirrors, technically speaking,

Ogledala su, tehnički govoreći,

are just a tiny, tiny, little bit ...

samo malim, malim, delićem

green.

zelena.

You can demonstrate this by putting two mirrors next to each other,

Ovo možete dokazati

stavljajući dva ogledala jedno naspram drugog,

facing so they reflect back and forth forever.

tako da se ogledaju jedno u drugom

beskonačno.

Pogledajte tu beskrajnu refleksiju,

Look down that infinite reflection, and it will get dimmer,

postajaće zamagljenija,

because some light is lost or absorbed every time,

jer se deo svetlosti svaki put izgubi ili apsorbuje,

but it will also become greener,

ali će takođe postajati zelenija,

because green light,

jer zelena svetlost,

that is light of a wavelength that we perceive as green,

to je boja talasne dužine

koju mi doživljavamo kao zelenu,

is best reflected by most mirrors.

najbolje se reflektuje kroz većinu ogledala.

Okay, so, how much does a video weigh?

Okej, dakle, koliko je težak video?

Well, when you stream a video onto your computer,

Kada pustite video na kompjuteru,

that information is temporarily stored

ta informacija se privremeno skladišti

using electrons.

pomoću elektrona.

And the number of electrons on your device won't actually increase or decrease.

I broj elektrona na vašem uređaju

se neće zapravo povećavati i smanjivati.

But it takes energy to store them in one place,

Ali potrebna je energija da ih memoriše na jednom mestu,

and, thanks to our friend Albert Einstein,

i mi znamo,

zahvaljujući našem prijatelju Albertu Ajnštajnu,

we know that energy and mass are related.

da su energija i masa povezane.

Okay, so here's the thing:

Okej, evo o čemu se radi:

let's say you're watching a YouTube video

recimo da gledate video na Jutjubu

u stvarno dobroj rezoluciji, 720p.

at a really nice resolution, 720p.

Assuming a typical bit rate,

Uz tipičan protok bitova,

we can figure that a minute of YouTube video

možemo da zaključimo da će za minut videa na Jutjubu

biti potrebno da učestvuje

is going to need to involve about 10 million electrons on your device.

oko 10 miliona elektrona na vašem uređaju.

Sakupljanje svih tih elektrona

Plugging all those electrons and the energy it takes to hold them

i energija potrebna da ih drži

in the correct place for you to see the video,

na pravom mestu, kako biste pogledali snimak

po ovoj formuli,

into that formula,

možemo da zaključimo

we can figure out that one minute of YouTube video

da jedan minut snimka na Jutjubu

increases the mass of your computer

povećava masu vašeg kompjutera

by about 10 to the negative 19th grams.

do oko 10^-19 grama.

Written out, it looks like this.

Ispisano, to izgleda ovako.

(Whistle)

That's like nothing.

To izgleda kao ništa.

You could call that nothing, and you wouldn't really get in trouble,

To je, možete ga nazvati ništa,

i nećete zaista imati problema,

jer najbolji merači koje smo ikad izmislili,

because the best scales we've ever invented

that we could try to use to actually to detect that change

koje bismo mogli da iskoristimo

da stvarno detektujemo takvu promenu,

are only accurate to 10 to the negative 9th grams.

su precizni samo do 10^-9 grama.

So, we can't measure it,

Dakle, ne možemo da izmerimo,

but we can, like we just did, calculate it.

ali možemo, kao što upravo i jesmo,

da izračunamo.

And that's really cool because when I was a kid,

I to je stvarno super,

jer kad sam bio dete,

my school had two shelves of science books.

moja škola je imala dve police sa naučnim knjigama.

That was really cool,

To je stvarno bilo super,

but I read all of them within, like, two grades,

ali ja sam ih sve pročitao za neke dve godine,

and it was hard to get more books

i bilo je teško nabaviti još knjiga,

jer knjige su teške

because books are heavy, you need space for them

i potreban vam je prostor za njih

and moving books around is tougher than what we can do today.

i prenošenje knjiga je mnogo teže

od onoga što danas možemo.

With numbers that small,

Sa tako malim brojevima,

I can fit thousands of books

mogu da smestim hiljade knjiga

on my own little personal electronic reader.

na moj mali e-čitač.

I can stream hours and hours

Mogu da puštam sate i sate

and days and days of YouTube video

i dane i dane snimaka na Jutjubu

without my computer ever getting measurably heavier.

a da moj kompjuter ne postane merljivo teži.

I kako informacija postaje tako laka,

And as information becomes that light,

it becomes a lot more democratic,

postaje i mnogo više demokratska,

meaning that more teachers

u smislu da više nastavnika

and presenters and creators and viewers than ever before

i predavača

i stvaralaca

i gledalaca, više nego ikada,

can be involved.

može biti uključeno.

Right now, on YouTube,

Trenutno se na Jutjubu

there is an explosion of content like this happening.

dešava eksplozija sadržaja

kao što je ovaj.

The three Vsauce channels are down there in the corner.

Tri "Vsauce" kanala

su tamo dole u uglu.

But everyone else, all together, collectively,

Ali svi ostali, zajedno,

kolektivno,

their views dwarf what I can do alone

njihovi pregledi mogu da umanje ono što ja radim sam

or with the people that I work with,

ili sa ljudima sa kojima radim,

and that is really, really exciting.

i to je stvarno, stvarno uzbudljivo.

It turns out that tapping into people's curiosity

Izgleda da golicanje ljudske radoznalosti

and responsibly answering their questions

i revnosno odgovaranje na pitanja

is a brilliant way to build fans and an audience

je sjajan način da pridobijete fanove i publiku

and get in viewers.

i privučete gledaoce.

It's even a great way for brands and companies

To je čak i sjajan način da brendovi i kompanije

to build trust.

izgrade poverenje.

So, calculating the weight of a video

Dakle, računanje težine videa

is kind of a funny question,

je nekako zabavno pitanje,

but I cannot wait to see what we ask and answer next.

ali ja jedva čekam da vidim

šta ćemo sledeće da pitamo i odgovoramo.

As always, thanks for watching.

Kao i uvek, hvala na gledanju.

(Applause)