What happens if you don’t put your phone in airplane mode? - Lindsay DeMarchi

Prevodilac: Una Kavazović Lektor: Milenka Okuka

Right now, invisible signals are flying through the air all around you.

Upravo sada, nevidljivi signali proleću kroz vazduh svuda oko vas.

Beyond the spectrum of light your eyes can see,

Dalje od svetlosnog spektra koje vaše oči mogu da vide,

massive radio waves as wide as houses

ogromni radio signali široki poput kuća

carry information between computers, GPS systems, cell phones, and more.

nose informacije između kompjutera, GPS sistema, telefona, i tako dalje.

In fact, the signal your phone broadcasts is so strong,

Zapravo, signal koji vaš telefon emituje je toliko snažan,

if your eyes could see radio waves,

da kada biste mogli videti radio-talase,

your phone would be visible from Jupiter.

vaš telefon bi se video sa Jupitera.

At least your special eyes would be able to see this if the sky

Bar bi vaše posebne oči ovo mogle videti da nebo

wasn’t flooded with interference from routers, satellites, and, of course,

nije preplavljeno smetnjama od rutera, satelita i, naravno,

people flying who haven't put their phones on airplane mode.

ljudi koji lete, a koji nisu stavili svoj telefon u režim letenja.

You see, this setting isn't to protect your flight,

Vidite, ovo podešavanje nije tu da zaštiti vaš let,

it's to protect everyone else in your flight path.

već je tu da zaštiti sve druge na vašoj putanji leta.

Cell phones connect to networks by emitting information

Telefoni se povezuju na mreže emitujući informacije

in the form of electromagnetic waves;

u vidu elektromagnetnih talasa;

specifically, radio waves,

tačnije radio-talasa,

which occupy this band of the electromagnetic spectrum.

koji zauzimaju ovaj opseg elektromagnetnog spektra.

These radio waves come in a range of wavelengths,

Ovi radio signali dolaze u rasponu talasnih dužina,

and let’s imagine your special eyes see the various wavelengths

i hajde da zamislimo da vaše posebne oči vide različite talasne dužine

as different colors.

kao različite boje.

When you make a call, your phone generates a radio wave signal

Kada pozovete nekoga, vaš telefon generiše radio-talasni signal

which it throws to the nearest cell tower.

koji šalje na najbliži mrežni odašiljač.

If you're far from service,

Ako ste daleko od mreže,

your phone will expend more battery power to send a higher amplitude signal

vaš telefon će potrošiti više baterije da pošalje signal veće amplitude

in an effort to make a connection.

kako bi uspostavio vezu.

Once connected, this signal is relayed between cell towers

Jednom povezan, ovaj signal se prenosi između mrežnih odašiljača

all the way to your call’s recipient.

sve do osobe koja prima vaš poziv.

Since your call isn’t the only signal out here,

Pošto vaš poziv nije jedini prisutni signal,

cell towers managing the calls assign each phones involved their own wavelength.

odašiljači koji upravljaju pozivima daju svakom telefonu sopstvenu talasnu dužinu.

This specific color ensures you’re not picking up other people’s calls.

Ova specifična boja osigurava da ne primate tuđe pozive.

It’s even slightly different from the wavelength

Čak je i malo drugačija od talasne dužine

your phone is receiving information on,

na kojoj vaš telefon prima informacije,

so as not to interfere with that incoming signal.

kako ne bi ometala taj dolazeći signal.

But there are only so many colors to choose from.

Međutim, postoji tek toliko boja koje se mogu odabrati.

And since the advent of Wi-Fi,

A od dolaska Wi-Fi mreže,

the demand for ownership of these wavelengths has increased dramatically.

potražnja za vlasništvom nad ovim talasnim dužinama dramatično se povećala.

With all these signals in the air and a limited number of colors to assign,

Sa svim ovim signalima u vazduhu i ograničenim brojem boja za odabir,

avoiding interference is increasingly difficult.

izbegavanje smetnji je sve teže.

Especially when cell towers receive too many signals at once,

Posebno kada mrežni odašiljači primaju previše signala odjednom,

such as during regional emergencies, when everyone's trying to use their phones.

kao za vreme regionalnih hitnih slučajeva, kada svi pokušavaju koristiti telefone.

But other sources of interference are more preventable,

Ali drugi izvori smetnji se lakše mogu sprečiti,

like phones searching for signals from thousands of meters in the sky.

kao što su to telefoni koji traže signal hiljadama metara na nebu.

Phones on planes are very far from cell towers,

Telefoni u avionima su veoma daleko od mrežnih odašiljača,

so they work overtime to send the loudest signals they can

tako da rade prekovremeno da pošalju najglasnije signale koje mogu

in search of service.

u potrazi za mrežom.

But since planes travel so quickly,

Ali pošto avioni putuju tako brzo,

the phones might find themselves much closer to a cell tower than expected—

telefoni se mogu naći mnogo bliže mrežnom odašiljaču nego što je očekivano—

blasting it with a massive signal that drowns out those on the ground.

preplavljujući ga ogromnim signalom koji prigušuje one na zemlji.

So when you fly without using airplane mode,

Tako da kada letite bez korišćenja avionskog režima,

you’re essentially acting as a military radio jammer—

praktično postajete vojni radio-ometač—

sending out giant radio waves that interfere with nearby signals.

šaljući džinovske radio-talase koji ometaju obližnje signale.

Even on the ground, almost all our electronics emit rogue radio waves,

Čak i na zemlji, skoro sva naša elektronika emituje lutajuće radio-talase,

slowing down our internet and making our calls choppy.

usporavajući naš internet i čineći naše razgovore isprekidanima.

This leads consumers to pay for more bandwidth,

Ovo navodi potrošače da plaćaju veći propusni opseg,

pushing service providers to take over more of the radio spectrum,

gurajući provajdere usluga da preuzmu još više radio-talasnog spektra,

and eventually, send more satellites into the sky—

i naposletku, da pošalju još satelita u nebo—

creating a vicious cycle that could eventually blot out the stars.

stvarajući začarani krug koji bi mogao na kraju da prekrije zvezde.

Though, even without these satellites,

Mada, čak i bez ovih satelita,

this system is threatening our relationship with the cosmos.

ovaj sistem je pretnja našoj vezi sa kosmosom.

Radio telescopes used for astronomy

Radio-teleskopi korišćeni u astronomiji

rely on a specific band of wavelengths to see deep into space.

se oslanjaju na poseban opseg talasnih dužina da bi videli duboko u svemir.

However, while this range is supposedly protected,

Međutim, iako je ovaj raspon navodno zaštićen,

the cutoffs aren’t enforced.

ograničenja se ne primenjuju.

For example, the Very Large Array can see signals throughout our solar system

Na primer, VLA teleskop može videti signale kroz naš solarni sistem

from 1 to 50 GHz.

od 1 do 50 GHz.

But if it tries looking for signals below 5 GHz,

Međutim, ako pokuša tražiti signale ispod 5 GHz,

its search could be drowned out by a sea of phones on 5G networks.

njegova potraga može biti prigušena od strane mora telefona na 5G mreži.

Today, nowhere on Earth is truly radio quiet.

Danas, nigde na Zemlji nema zaista tihe zone radija.

Satellites relaying signals around the globe

Sateliti koji šalju signale širom sveta

have blanketed the planet in radio waves.

su prekrili planetu radio-talasima.

But there are a few places with less crowded skies,

Međutim, ima nekoliko mesta sa manje gužve na nebu,

where radio telescopes can look deep into space.

gde radio teleskopi mogu zaviriti duboko u svemir.

Here, we can see the black hole at the center of the Milky Way,

Ovde možemo videti crnu rupu u centru Mlečnog puta,

and uncover the secrets of galaxies up to 96 billion light years away.

i otkriti tajne galaksija udaljenih i do 96 milijardi svetlosnih godina.

Well, so long as we’re not blinded by phones

Pa, sve dok nismo zaslepljeni telefonima

sending signals from first class.

koji šalju signale iz prve klase.