A trip through space to calculate distance - Heather Tunnell

Putovanje kroz svemir da bi se izračunala udaljenost - Heder Tanel (Heather Tunnell)

Prevodilac: Mile Živković Lektor: Anja Saric

Imate li prijatelja, brata ili sestru

Do you have a friend or a sibling

that's always competing with you

koji se uvek takmiče sa vama

to see who's the fastest?

da vide ko je najbrži?

Our alien friends Bleebop and Mark

Naši prijatelji vanzemaljci, Blibop i Mark,

are having the same debate

imaju istu raspravu

with their custom-built rockets,

sa njihovim posebno rađenim raketama

and they've asked us

i pitali su nas

to be the judge of a space race to their moon.

da budemo sudije u svemirskoj trci do njihovog meseca.

The only problem is that they are starting

Jedini problem je što kreću

from different asteroids.

sa različitih asteroida.

Bleebop is on an asteroid 240 miles from the moon,

Blibop je na asteroidu udaljenom 390 kilometara od meseca,

and Mark is on one 150 miles away.

a Mark je udaljen 240 kilometara.

Don't worry, it's not rocket science.

Ne brinite, nije neka nauka.

Solving this equation is as simple as DIRT.

Rešavanje ove jednačine je prosto kao pasulj.

We can decide who the winner is

Pobednika možemo dobiti

using the D=RT formula, or DIRT.

koristeći formulu D=RT, iliti DIRT.

This stands for distance equals rate times time.

To znači da je udaljenost jednaka brzini pomnoženoj sa vremenom.

In the case of Bleebop and Mark,

Kod Blibopa i Marka,

we will only know the distance they traveled

znaćemo samo udaljenost koju su proputovali

and the time it took for them

i vreme koje im je bilo

to get to the finish line.

potrebno da dođu do cilja.

It'll be up to us to find the rate

Na nama je da pronađemo brzinu

and who is faster.

i ko je brži.

Let's turn to the race now

Hajde da vidimo trku

and see what information we get.

i informacije koje ćemo dobiti.

Three,

Tri,

two,

dva,

one,

jedan,

blast off!

krećemo!

Bleebop and Mark's rockets go zipping

Rakete Blibopa i Marka jurcaju

across the galaxy towards their moon,

preko galaksije do njihovog meseca,

dodging clunky meteorites

izbegavajući krupne meteorite

and loopy space buggies.

i zalutalo svemirsko kamenje.

After a few close calls with a wandering satellite,

Nakon nekoliko bliskih susreta sa zalutalim satelitom,

Mark arrives first in two hours,

Mark dolazi prvi za dva sata

and Bleebop gets there one hour later.

a Blibop dolazi sat vremena kasnije.

Looks like Mark has the faster rocket,

Čini se da Mark ima bržu raketu,

but let's check out the results with our DIRT equation.

ali hajde da rezultate proverimo našom DIRT jednačinom.

Begin by setting up a chart.

Krećemo sa tabelom.

Make four columns and three rows.

Napravićemo četiri kolone i tri reda.

Use DIRT to remember what to fill in.

Koristite DIRT da zapamtite šta gde da upišete.

Each rocket will have information

Svaka raketa će imati informacije

for distance, rate, and time.

za udaljenost, brzinu i vreme.

Mark's rocket went 150 miles,

Markova raketa je išla 240 kilometara,

we don't know the rate,

ne znamo brzinu,

and he got there in 2 hours.

i stigao je za dva sata.

Bleebop's rocket went 240 miles,

Blibopova raketa išla je 390 kilometara,

we don't know the rate,

ne znamo brzinu,

and the time is 1 hour after Mark,

i vreme je sat nakon Markovog,

or 3 hours.

to jest, tri sata.

Because we don't know Mark or Bleebop's rate,

Pošto ne znamo brzine za Marka i Blibopa,

that number is going to be a variable

taj broj će biti varijabla

in each equation,

u svakoj jednačini,

which we'll represent with x.

koju predstavljamo sa X.

We'll solve the equation

Jednačinu ćemo rešiti

for the variable to find its value.

kako bi otkrili vrednost varijable.

Mark je prvi završio,

Mark finished first,

so start with his rocket.

pa počinjemo s njegovom raketom.

Remembering DIRT, write down D=RT.

Sećamo se DIRT-a i pišemo D=RT.

150 miles equals x times 2 hours.

240km jednako je X puta dva sata.

Divide both sides by 2 hours.

Podelite obe strane sa dva sata.

This will leave x isolated

Ovako ćemo izolovati X

on the right side of the equation.

sa desne strane jednačine.

150 miles divided by 2 hours

240 kilometara podeljeno sa dva sata

is 75 miles over 1 hour.

je 120 kilometara za jedan sat.

Mark's rate is 75 miles per hour.

Markova brzina je 120 kilometara na čas.

That's what mph means.

To znači km/h.

It's the amount of miles over one hour.

Količina kilometara po jednom satu.

Still think Mark is faster?

Još mislite da je Mark brži?

Let's set up the same equation for Bleebop and see.

Uradimo istu jednačinu za Blibopa pa ćemo videti.

D=RT

D=RT,

240 miles equals x times 3 hours.

390 kilometara jednako je X puta 3 sata.

Divide both sides by 3 hours.

Podelimo obe strane sa 3 sata.

This will leave x isolated

Ovim ćemo izolovati X

on the right side of the equation.

sa desne strane jednačine.

240 miles divided by 3 hours

390 kilometara podeljeno na 3 sata

is 80 miles over 1 hour.

je 130 kilometara za jedan sat.

Bleebop's rate is 80 miles per hour.

Blibopova stopa je 130 kilometara na sat.

Wow, even though Bleebop got there one hour later,

Vau, iako je Blibop stigao sat vremena kasnije,

it turns out he had the faster rocket.

ispostavlja se da on ima bržu raketu.

Čini se da je Mark prilično uznemiren,

Mark seems pretty upset,

but with aliens, you can never really tell.

ali sa vanzemaljcima se nikad ne zna.

Thanks to DIRT, you now know how to calculate

Zahvaljujući DIRT-u, sada znate kako da izračunate

distance,

udaljenost,

rate,

and time.

brzinu

i vreme.

In what other situations

U kojim drugim situacijama

can you use the distance formula?

možete koristiti formulu za daljinu?

You don't even need to be watching a space race.

Čak ne morate ni da gledate svemirsku trku.

As long as you know two pieces of information

Dok god imate dve informacije

for the formula D=RT,

za formulu D=RT,

you can calculate any moving vehicle or object.

možete izračunati vrednosti za bilo koji predmet ili vozilo.

Now, the next time you're in a car,

Sledeći put kad budete u kolima,

možete svojim prijateljima reći

you can let your friends know

exactly when you'll be arriving,

tačno kada ćete stići,

how fast you're going,

koliko brzo idete

or the distance you'll travel.

ili udaljenost koju ćete preći.

It's as simple as DIRT.

Prosto kao pasulj.