If matter falls down, does antimatter fall up? - Chloé Malbrunot

Prevodilac: Mile Živković Lektor: Ivana Korom

"Hey, another atom. I'm hydrogen, nice to meet you.

"Hej, još jedan atom. Ja sam vodonik, drago mi je.

How are you feeling about the jump?"

Šta misliš o skoku?"

"Hi there, I'm antihydrogen, your antiatom,

"Zdravo, ja sam antivodonik, tvoj antiatom,

and to be honest, I'm feeling kind of neutral.

i iskreno, nekako sam neutralna.

My positron and antiproton balance out, just like your electron and proton, right?"

Pozitron i antiproton mi se izbalansiraju, kao i elektron i proton kod tebe, zar ne?"

"Hey, yeah! You look just like me, but different somehow."

"Hej, da! Izgledaš kao ja, ali nekako si drugačija."

"Whoa, be careful! If we get too close, we'll disappear in a spark of energy.

"Hej, pažljivo! Ako se previše približimo, nestaćemo u varnici energije.

I'd like to stay in one piece."

Želela bih da ostanem u jednom komadu."

"Oh wow, sorry."

"O, izvini."

"It's okay. I was just thinking,

"U redu je. Nešto sam mislila,

it's kind of weird for us to be

pomalo je čudno

chatting like this before our jump above CERN."

da nas dvoje ovako ćaskamo pre skoka preko CERN-a."

"Why's that?"

"Zašto misliš to?"

"Well, for starters, how do we know we'll both fall?"

"Za početak, kako da znamo da ćemo oboje pasti?"

"Naravno da ćemo pasti.

"Of course we'll fall. It's gravity,

you know, the force of attraction between masses.

To je gravitacija, znaš, sila privlačenja između dve mase.

I even know how fast we should fall.

Čak znam i koliko brzo bismo pali.

Galileo showed in that tower experiment

U eksperimentu s tornjem, Galilej je pokazao

that all falling objects accelerate at the same rate, regardless of mass."

da svi predmeti koji padaju ubrzavaju istim tempom, bez obzira na masu."

"That's for bigger objects.

"To je za veće predmete.

It's a different story for small particles like us.

Priča je drugačija za male čestice poput nas.

Our mass is so tiny that the gravitational force we experience is miniscule,

Naša masa je toliko mala da je sila gravitacije kojoj podležemo minorna,

and if the particles are charged, like my antiproton or your proton,

a ako se čestice naelektrišu, poput mog antiprotona ili tvog protona,

then it becomes impossible to detect

onda je nemoguće otkriti je

compared to the much greater electromagnetic force acting on them."

u odnosu na mnogo veću elektromagnetnu silu koja deluje na njih.

"But that's only for charged particles. You and I are both neutral.

"Ali to je samo za naelektrisane čestice. I ti i ja smo neutralni.

Our charges balance out, so the electromagnetic force is small

Naši naboji se balansiraju, tako da je elektromagnetna sila mala

a sila gravitacije bi trebalo da može da se primeti.

and the gravitational force should be detectable.

I know mine's been measured."

Znam da je kod mene izmerena."

"Because you're everywhere, but I'm kind of hard to find."

"Zato što si ti svuda, ali mene je malo teže naći."

"Why is that, anyway?

"A zašto je to uopšte tako?

Shouldn't there have been an equal amount

Zar ne treba da postoji

of matter and antimatter created in the Big Bang?"

jednaka količina materije i antimaterije nakon Velikog praska?"

"You'd think so, but then all of those particles

"Tako bi trebalo, ali onda bi sve te čestice

would have annihilated each other into energy, remember?

uništile jedne druge do nastanka energije, sećaš li se?

And the Universe is obviously full of matter.

A univerzum je očigledno prepun materije.

No one knows why there is more matter than antimatter,

Niko ne zna zašto postoji više materije od antimaterije,

which is why scientists are so interested in studying me."

zbog čega su naučnici tako zainteresovani da me proučavaju."

"So where do they find you anyway?"

"Pa gde te uopšte nalaze?"

"Actually, I was made in that lab down there.

"Zapravo, stvorena sam u toj laboratoriji dole.

They needed an accelerator to make my antiproton because it's so heavy,

Trebao im je akcelerator da naprave moj antiproton jer je pretežak,

just as heavy as your proton.

isto kao i tvoj proton.

Getting my positron was easier.

Bilo je lakše dobiti moj pozitron.

It's much lighter, like your electron, and there are materials

Mnogo je lakši, poput tvog elektrona, i postoje materijali

that naturally decay by emitting one.

koji se prirodno raspadaju tako što ga ispuštaju.

Then they just had to put the two together and they got me.

Samo su morali da povežu to dvoje i dobili su me.

But it's only recently

Ali tek odskora se desilo

that they've been able to keep me

da mogu da me zadrže

around long enough to study my properties."

dovoljno dugo da izučavaju moja svojstva."

"And now they've sent you on this jump with me. Hey, wait a minute."

"I sad su te poslali na ovaj skok sa mnom. Hej, stani malo."

"That's right. We're reenacting Galileo's experiment,

"Tako je. Ponavljamo Galilejev eksperiment,

but with matter and antimatter instead of two objects made of matter."

ali sa materijom i antimaterijom umesto dva predmeta od materije."

"So what's going to happen?

"Pa šta će se desiti?

Are you going to fall upwards or something?"

Hoćeš li pasti nagore ili tako nešto?"

"Only one way to find out!"

"Postoji samo jedan način da to saznamo!"