Topic: Lethn gets educated (Read 1701 times)

inox · « **Reply #240 on:** February 08, 2010, 10:40:55 PM »

Oh, Poirot, the blue matches your eyes so well! Although the yellow was not bad.

kab · « **Reply #241 on:** February 09, 2010, 11:33:33 AM »

If Hercule was a Poirot, Poirot would be Hercule.

Badem · « **Reply #242 on:** February 09, 2010, 12:03:05 PM »

Someone please educate Lethn on how to swallow Bleach and Die in a Fire

kab · « **Reply #243 on:** February 09, 2010, 12:08:58 PM »

That'd be fun.

Lethn · « **Reply #244 on:** February 09, 2010, 01:01:29 PM »

Quote from: Badem on February 09, 2010, 12:03:05 PM

Someone please educate Lethn on how to swallow Bleach and Die in a Fire

We need to educate Badem on how to shove a bamboo stick up his arse so he doesn't think think he's manly any more.

Badem · « **Reply #245 on:** February 09, 2010, 02:25:32 PM »

my shit chutew carries one way traffic, nothing in only outbound goods

so your shit outta look fag boy

inox · « **Reply #246 on:** February 09, 2010, 02:26:59 PM »

Stop derailing my thread, nerds.

Lethn · « **Reply #247 on:** February 09, 2010, 02:27:29 PM »

Wasn't it derailed anyway?

inox · « **Reply #248 on:** February 09, 2010, 02:28:47 PM »

No, I was educating you.

Lethn · « **Reply #249 on:** February 09, 2010, 02:32:26 PM »

I'm shit at maths, you couldn't explain it to me even if you tried, best I'm good at is multiplication and addition lol :P

Badem · « **Reply #250 on:** February 09, 2010, 02:32:32 PM »

I was educating you on how to derail threads with a little help from lethn

Thanks Lethn, lesson over?

Lethn · « **Reply #251 on:** February 09, 2010, 02:33:14 PM »

What lesson? You're just being a gigantic asshole.

Fro · « **Reply #252 on:** February 10, 2010, 09:34:33 PM »

Quote from: Lethn on February 09, 2010, 02:32:26 PM

I'm shit at maths, you couldn't explain it to me even if you tried, best I'm good at is multiplication and addition lol :P

Most of it you're never likely to use anyway. Even jobs like accounting don't require any high level maths.

inox · « **Reply #253 on:** February 10, 2010, 09:53:32 PM »

Speaking of education and stuff, can you 'customize' your school setup in the intermediate level (16-19 year olds) in The Foreign World?

bebuhl · « **Reply #254 on:** February 11, 2010, 12:07:52 AM »

Not in Brazil. Well, I could choose 2 out of 3 languages and some extra class activities, but that was it.

Also, "high school" ends at 17, usually, here.

kab · « **Reply #255 on:** February 11, 2010, 09:55:51 AM »

Really? Why? You can be up to 6 or 8 years in high school, here and it starts at 15.

Aacevedo · « **Reply #256 on:** February 11, 2010, 01:04:50 PM »

Quote from: bebuhl on February 11, 2010, 12:07:52 AM

Not in Brazil. Well, I could choose 2 out of 3 languages and some extra class activities, but that was it.

Also, "high school" ends at 17, usually, here.

Here is similiar you can choose.
2 math and physcis OR
2 language (Not foreign) classes OR
2 Biology OR
2 History.

But that's it , also you end high school at 17 or 18 if you were born after July.

They don't teach anything btw...

kab · « **Reply #257 on:** February 11, 2010, 04:58:17 PM »

Huh.. wow.

bebuhl · « **Reply #258 on:** February 11, 2010, 09:21:01 PM »

And we have football the whole year in PE!

kab · « **Reply #259 on:** February 11, 2010, 10:08:53 PM »

Well of course you do, you're Brazilian. I myself find it to be quite boring, 20-ish men running around after a ball, just give each of them a ball.

bebuhl · « **Reply #260 on:** February 11, 2010, 11:41:29 PM »

It's funner to play than it is to watch. Usually.

kab · « **Reply #261 on:** February 12, 2010, 01:42:28 PM »

It's pretty dull either way for me.

inox · « **Reply #262 on:** March 16, 2010, 11:19:45 PM »

Hey, Lethn, in case you start reading this forum again, I have another lesson on Interesting Stuff.

You have probably heard of Galileo Galilei. He is most famous for his works on heliocentrism, but among the other things he did, was formulate what we call the Galilei transformations. Imagine you are on a train moving forward with a constant velocity v₁, and you walk in the same direction with a constant velocity v₂. In relation to the train, you are walking at the velocity v₂. Now imagine bebuhl is standing next to the railway as the train goes by, and he sees you walking forward in it. In relation to him, it will look like you are moving at a velocity v₁ + v₂. This might seem pretty obvious, and you may be asking yourself why I'm even saying it. Keep reading.

Now, imagine you are on a spaceship, travelling at half the velocity of light (0.5c, c being the speed of light in vacuum). Ahead of you is an enemy cruiser, and you blast away with your awesome laser cannons. Since laser is light, it has the velocity c. In relation to your ship, the deadly beam travels at c. This time bebuhl is standing on a nearby asteroid which is standing still in relation to your ship. In relation to him, the laser travels at 0.5c + c = 1.5c, according to the Galilei transformation. Again, this might seem pretty obvious.

However, there is a problem here that gets increasingly evident as the velocity increases. The problem is that experiements have shown that the speed of light is the same regardless of what you measure it in relation to. You won't notice the miniscule effect of this on the train, but in the space combat scenario, it has a dramatic effect, because the Galilei transformation gives a very wrong result. How can this possibly be? A dude called Albert Einstein said that it was because time is relative; it can slow down or speed up depending on where you see it from. I will elaborate on that next time, but at least you do now have a foundation for understanding one of the major problems with classical physics.

bebuhl · « **Reply #263 on:** March 16, 2010, 11:42:31 PM »

Good stuff, in nox.

Sadly, what physics has yet to answer is what was bebuhl doing next to the railway.

Oh, I have one question.

Quote from: inox on March 16, 2010, 11:19:45 PM

c being the speed of light in vacuum

Why the emphasis on "in vacuum"? Isn't the speed the same anywhere?

inox · « **Reply #264 on:** March 16, 2010, 11:54:53 PM »

Good question! I can't say I know the answer, but I have given it some thought and this is how I see it;

When we say the speed of light is constant, we mean it doesn't change when you look at it from another "system". It's the same regardless of what you measure it in relation to. If the light goes through glass instead of vacuum, it will go slower, but it's speed will still be regardless of what you measure it in relation to.

When we say other things are relative, we mean they depend on what you measure them in relation to. That is what we mean by time, speed, length, etc, being relative.

As for the other question, I have no idea.

Aacevedo · « **Reply #265 on:** March 17, 2010, 02:04:08 AM »

NEED FOR SPEED

bebuhl · « **Reply #266 on:** March 17, 2010, 02:10:02 AM »

Need For Light-speed

Aacevedo · « **Reply #267 on:** March 17, 2010, 02:14:12 AM »

Need for tachyon speed.

ULTRAWIN

Static · « **Reply #268 on:** March 17, 2010, 02:16:13 AM »

Quote from: bebuhl on March 16, 2010, 11:42:31 PM

Why the emphasis on "in vacuum"? Isn't the speed the same anywhere?

Think of it this way. If you shine a beam of light in a cloud of smoke, you will see the trail of light regardless of where you are standing due to some of the light reflecting off particles in the air.

In a vacuum, you won't see the light if you're standing behind the source (well anywhere not in front of it).

The point I'm trying to make is that if it's not in a vacuum, then a certain 'particle' of light may have reflected multiple times (thus increasing it's travel path/time) to reach your eye.

bebuhl · « **Reply #269 on:** March 17, 2010, 02:20:42 AM »

Hmmmmm that makes sense.

Vault 68!

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Author Topic: Lethn gets educated (Read 1701 times)