If superpowers were real: Super speed - Joy Lin

Če bi nadnaravne moči obstajale: Super hitrost- Joy Lin

Translator: Klavdija Cernilogar Reviewer: Nika Kotnik

Some superheros can move faster than the wind.

Nekateri super junaki so hitrejši od vetra.

The men in Apollo 10 reached

Možje v Apollu 10 so dosegli

a record-breaking speed

rekordno hitrost

of around 25,000 miles per hour

okoli 40.000 km/h,

when the shuttle re-entered

ko se je plovilo leta 1969

the Earth's atmosphere in 1969.

vrnilo v Zemljino atmosfero.

Wouldn't we save a lot of time

Mar ne bi prihranili veliko časa,

to be able to move that fast?

če bi se lahko tako hitro premikali?

But what's the catch?

V čem je problem?

Air is not empty.

Zrak ni prazen.

Elements like oxygen and nitrogen,

Elementi, kot sta kisik in dušik,

even countless dust particles,

celo nešteto prašnih delcev

make up the air around us.

sestavljajo zrak okoli nas.

When we move past these things in the air,

Ko se premikamo skozi vse to,

we're rubbing against them

se drgnemo ob delce

and creating a lot of friction,

in ustvarjamo veliko trenja,

which results in heat.

kar povzroči segrevanje.

Just like rubbing your hands together warms them up

Tako kot roke ogrejemo z drgnjenjem

or rubbing two sticks together makes fire,

in s trenjem palic prižgemo ogenj,

the faster objects rub together,

hitreje ko to poteka,

the more heat is generated.

več toplote nastane.

So, if we're running at 25,000 miles per hour,

Če bi tekli s hitrostjo 40.000 km/h,

the heat from friction would burn our faces off.

bi nam vročina zaradi trenja sežgala obraz.

Even if we somehow withstood the heat,

Tudi če bi nekako prenesli vročino,

the sand and dirt in the air

bi pesek in umazanija v zraku

would still scrape us up

povzročila odrgnine,

with millions of tiny cuts

naenkrat bi dobili

all happening at the same time.

milijone majhnih ureznin.

Ever seen the front bumper or grill of a truck?

Ste kdaj videli prednji odbijač tovornjaka?

What do you think all the birds and bugs would do

Kaj mislite, da bi ptice in žužki

naredili odprtim očem in goli koži?

to your open eyes or exposed skin?

Okay, so you'll wear a mask

V redu, imeli boste masko,

to avoid destroying your face.

da si ne uničite obraza.

But what about people in buildings

Kaj pa ljudje v stavbah

between you and your destination?

med vami in vašim ciljem?

It takes us approximately one-fifth of a second

Okoli petino sekunde traja,

to react to what we see.

da reagiramo na to, kar vidimo.

By the time we see what is ahead of us

Preden bi videli, kaj je pred nami,

and react to it -

in na to reagirali -

time times velocity equals distance

čas krat hitrost je razdalja,

equals one-fifth of a second

petina sekunde

times 25,000 miles per hour

krat 40.000 km/h

equals 1.4 miles

je 2,3 km -

- we would have gone past it

bi bili že mimo ali skozi

or through it by over a mile.

in to za več kot 1,5 km.

We're either going to kill ourselves

Verjetno nas bo ubilo,

by crashing into the nearest wall at super speed

saj se bomo noro hitro zaleteli v kak zid,

or, worse, if we're indestructible,

če pa smo neuničljivi,

we've essentially turned our bodies into missiles

bomo telesa spremenili v izstrelke,

that destroy everything in our path.

ki bodo uničili vse pred sabo.

So, long distance travel at 25,000 miles per hour

Dolga pot s hitrostjo 40.000 km/h

would leave us burning up,

bi nas sežgala,

covered in bugs,

pokrila z žužki

and leaves no time to react.

in nam ne bi dala časa za odziv.

What about short bursts

Kaj pa kratki skoki

to a location we can see

do kraja, ki ga vidimo,

with no obstacles in between?

brez vmesnih ovir?

Okay, let's say a bullet

Recimo, da bo naboj

is about to hit a beautiful damsel in distress.

zadel lepo dekle v težavah.

So, our hero swoops in at super speed,

Naš junak prileti z veliko hitrostjo,

grabs her,

jo ujame

and carries her to safety.

in odnese na varno.

That sounds very romantic,

To zveni zelo romantično,

but, in reality, that girl will probably suffer

a verjetno bo junak dekle bolj ranil

more damage from the hero than the bullet

kot bi jo naboj,

if he moved her at super speed.

če se bo vanjo zaletel s super hitrostjo.

Newton's First Law of Motion deals with inertia,

Prvi Newtonov zakon gibanja govori o inerciji,

which is the resistance to a change

ki je odpornost na spremembe

in its state of motion.

v gibanju.

So, an object will continue moving

Predmet se bo gibal

or staying at the same place

ali ostal na istem mestu,

unless something changes it.

če tega nič ne spremeni.

Acceleration is the rate the velocity changes over time.

Pospešek je delež spremembe hitrosti skozi čas.

When the girl at rest,

Ko bi mirujoče dekle

velocity equals zero miles per hour,

s hitrostjo nič km/h

begins accelerating to reach the speed within seconds,

začelo pospeševati,

velocity increases rapidly

bi hitrost poskočila

to 25,000 miles per hour,

na 40.000 km/h

her brain would crash into the side of her skull.

in njeni možgani bi se zaleteli v zadnji del lobanje.

And, when she stops suddenly,

In ko bi se nenadoma ustavila,

velocity decreases rapidly back to zero miles per hour,

bi hitrost padla na ničlo

her brain would crash into the other side of her skull,

in možgani bi skočili na drug konec lobanje

turning her brain into mush.

ter postali ena sama kaša.

The brain is too fragile to handle the sudden movement.

Možgani so preveč krhki za nenadne gibe.

So is every part of her body, for that matter.

To pravzaprav velja za vsak del telesa.

Remember, it's not the speed that causes the damage

Zapomnite si, poškodba ni zaradi hitrosti,

because the astronauts survived Apollo 10,

saj so astronavti preživeli let Apolla 10,

it's the acceleration

težava je v pospešku

or sudden stop

ali nenadni ustavitvi,

that causes our internal organs

zaradi česar notranji organi

to crash into the front of our bodies

zadenejo prednji del telesa,

kot nas odnese v avtobusu,

the way we move forward in a bus

when the driver slams on the brakes.

ko voznik močno pritisne na zavoro.

What the hero did to the girl

Junak je, matematično gledano,

is mathematically the same as running her over

dekletu povzročil nekaj podobnega,

with a space shuttle at maximum speed.

kot če bi jo zadel z vesoljskim plovilom pri največji hitrosti.

She probably died instantly at the point of impact.

Verjetno je umrla takoj ob udarcu.

He's going to owe this poor girl's family an apology

Moral se bo opravičiti njeni družini

and a big fat compensation check.

in prinesti velik ček, da se oddolži.

Oh, and possibly face jail time.

In verjetno bo šel v zapor.

Doctors have to carry liability insurance

Zdravniki morajo biti zavarovani

just in case they make a mistake and hurt their patients.

za primere, če naredijo napako in poškodujejo pacienta.

Sprašujem se, koliko bi stala zavarovalna polica za super junake.

I wonder how much superhero insurance policy would cost.

Now, which superpower physics lesson

Katero nadnaravno moč

will you explore next?

boste raziskali zdaj?

Shifting body size and content,

Spreminjanje velikosti in sestave telesa,

super speed,

super hitrost,

flight,

letenje,

super strength,

nadnaravno moč,

immortality,

nesmrtnost

and

in

invisibility.

nevidnost.