/sci/ - Science & Math

http://en.wikipedia.org/wiki/Introduction_to_special_relativity

>>5408239

the ball won't be red anymore.

relativistic doppler effect, bro.

It doesn't go faster than the speed of light. Lorentz transform.

Then you're a Kenyan in a space suit.

>>5408239
>What if I'm running at 99.999999(you get the point)% of the speed of light

You already are, in one reference frame.

So, throw a ball and see what happens.

> you can't travel at the speed of light
> only a fraction of it, 0.999...
> 0.999... = 1
> you can travel at the speed of light

>>5408352
FUCK OFF! FUCK OFF! FUCK OFF! FUCK OFF! FUCK OFF! FUCK OFF! FUCK OFF! FUCK OFF! FUCK OFF! FUCK OFF! FUCK OFF! FUCK OFF! FUCK OFF! FUCK OFF! FUCK OFF! FUCK OFF! FUCK OFF!


/SCI/ IS ALREADY SHITTY ENOUGH, WE DON'T NEED YOUR FUCKING BULLSHIT TO MAKE IT EVEN SHITTIER!
SO FUCK OFF!

>>5408239
>implying V3 = V1 + V3
V3 = (V1 + V2) / (1 + ((V1 * V2) / c^2)))

>>5408366

>>5408370
Wut?

>>5408411
Basic relativity. Einstein had the same thought experiment as OP, but with a car and headlights. This is the problem with the science education in basic schools- they teach idiotic things like V1+V2=V3 and then "April Fools!" in late high school / college. It's like teaching kids that the earth is flat until they're 20, and then breaking it softly. BS.

>>5408370
1, You mean > implying V3 = V1 + V2
2. He didn't imply that. He was just asking what would happen.

>>5408427

The formula, which has been tested rigorously, says an object will never go past the speed of light.

>>5408239
Didn't specify the force that you threw the ball with. So, if you had thrown the ball with a force equivalent to .0000009% the speed of light, the ball moves at 99.9999999% the speed of light.

Nice try though.

>>5408352
You are incorrect in your assumption sir

>>5408421
what do you want them to do, whack the kids with relativity at age 11?
we have enough trouble getting people interested in science as it is. it's more important for people to care about the subject than it is for them to know about it.

technically OP is talking about going double the speed of light... so...

>>5408474
>whack the kids with relativity at age 11?

Yes. Kids are smart. They can handle the truth. It's adults that can't handle it these days.

>>5408474
Not the original guy, but I actually think we should. The fact that all of the physics we teach does not actually fit reality in the end, may be what's contributing to people not caring about it.

>>5408379

>>5408474
6 prefferably imo

>>5408474

We should probably try to teach them metric first.

>>5408411
have none of you niggers even made it to freshman physics?

>>5409389
>relativity
>freshman physics
pick one

>>5408239
you would see the ball travel away from you at the speed of light

To you, it goes at velocity V_throw.

To anyone else, it goes about the same speed as you.

Why? Because to you, space contracts and time contracts.

>>5408239
Speeds don't add. Welcome to general relativity.

>>5409464
>don't linearly add
fixed

>Don't call me dumb or anything
You're dumber than a dumbed-down dumbwaiter carrying dumbbells made of melted dum-dum bullets by Albus Dumbledore.

>>5409409
0/10

I covered special relativity during my first semester of undergrad as an engineer.

Two observers start next to each other.
Each then instantly accelerates away from the other at 0.51c.
What do they see when watching each other?

>>5409950

Each sees the other moving away at 0.81c.

>>5409409
You do the more then enough to understand this in the last year of high school in Australia... (if you choose physics). And they say our curriculum is shit

>>5408474
>implying telling someone about special relativity makes them less interested in science
If someone told me about it when i was young it would have made me interested

>>5409981
In grade 10 I explained special relativity to the rest of my class, but luckily I had a teacher who taught me about it without saying it straight out. So now I have a vague understanding of it in grade 11 physics, where I am at now 20 QCE points will be pretty fucking easy.

>>5409465
>implying there is a different type of addition

(no one gets the point)

>>5409994

i am so envious of you.

would you consider doing an AMA thread here on /sci/? i would so love to participate, but you would have to be prepared for the waves of adulation that will wash over you!

please do it.

>>5408453
>the formula says

>>5410055

Seconded. That guy is awesome.

>>5410055
>>5410074
What the fuck is wrong with you people? Special relativity is high school physics.

>>5410055
>>5410074
>Wants an AMA from someone because they passed high school physics.

Whelp, that seems about right for /sci/.

>>5410082
>>5410095

Methinks thou art jealous?

Do the AMA guy, please! /sci/ is at the lowest ebb I've ever seen. Only you can save us.

>>5410100

Methinks thou are samefag?

>>5410108

there is nothing wrong with samefagging.

if it were wrong, /sci/ would have user IDs like /b/.

q.e.d. quickly ends discussion!

so, guy, gonna do that AMA or not? /sci/ needs real science discussions!

>>5410114
Not him, but I could do an AMA on either how to solve quadratic equations or how to find the derivatives of smooth functions.

>>5410118
>>5410114
>>5410100
>>5410095
Any math PhDs here? Can someone do an AMA on triple integrals?

>>5410114
>nothing wrong with asking yourself to do an AMA

Are you going to ask yourself all the questions, too?

<span class="deadlink">>>5410123[/spoiler]
> Any math PhDs here?

You think there's anyone with an actual degree on /sci/?
You funny man.

>>5410141

what would be wrong with that, so long as the questions and answers help to educate fellow /sci/entists?

<span class="math">u=\frac{u'+v}{1+\frac{u'v}{c^2}}[/spoiler]

>>5410234
Fuck, your so smart. Please make an AMA.

>>5410234

well this is strange. latex has never worked in my browser before, but now your cute little equation is properly formatted.