Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#6626 Re: This is Cool » How can this be possible? » 2005-05-02 10:51:59

Weeellll..., I figured it out by cutting the images into pieces (not with scissors, but on the computer), and at first I couldn't see how it worked. I thought that the slight misfits I was getting was just sloppy cut-and-paste. But then I noticed what Rora is talking about ...

Have a very close look at the point 5 spaces along and 2 spaces up from the bottom left hand corner of both illustrations.

#6627 Re: This is Cool » Mathematic complexity » 2005-05-02 10:35:28

A Black Hole is so dense that its gravity holds light in.

Just like when you throw a rock up and it falls back to Earth, imagine if the gravity was so high that if you shone a torch up into the sky, that the light would just fall back.

So, if when you look at a Black Hole you can't see it  ... how do we know they are there?

#6628 Re: This is Cool » Mathematic complexity » 2005-05-02 01:29:58

Yeah, the closer you look trying to find something solid to pick up, the smaller everthing seems to be. Let us hope the quark is as small as things get, but who knows?

And you are right, you can't study much Physics without getting deep int Maths. Perhaps the next big breakthroughs in Science will be by guys just working through equations. "Hey, Harry, look how we can create artificial gravity - see here in this formula?"

Certainly the much debated "String Theory" of the Universe, and its 10 or more Dimensions is all maths.

#6629 Re: Maths Is Fun - Suggestions and Comments » Upgraded the Worksheets » 2005-05-02 01:13:54

Oh, yeah. That.

It is the fate of the English Language, I am afraid. To be international-ised (-ized).

For example, this site is recommended by lots of American Schools, too. So, short of having TWO websites (or perhaps three or more if I want to capture the nuances of Australian, Canadian, etc cultures), I mix the language up a bit to please all.

#6630 Re: This is Cool » Mathematic complexity » 2005-05-01 18:05:29

THAT is AWESOME

90% of it is University Level and above, and only needed in specialised fields, such as theoretical physics.

It is a bit like looking at a map of the Universe. Here I am, here is Earth, here is the Solar System, here is the Galaxy ...

#6631 Re: This is Cool » How can this be possible? » 2005-05-01 18:02:14

I don't think so - I suppose it depends on my explanation ...

#6632 Re: This is Cool » How can this be possible? » 2005-05-01 17:50:23

I know what the answer is, and I will post it here in a day or so, but in the meantime ... does anyone else know? smile

#6633 Re: Puzzles and Games » The Fork! » 2005-05-01 01:33:33

Yes! That'll work.

A Jelly Baby from a bag would work too (but don't say that to insomnia, he'll go off again)

#6634 Re: Maths Is Fun - Suggestions and Comments » Upgraded the Worksheets » 2005-05-01 00:43:07

Not exactly ...  but I do work in the States every so often. Why do you think? Did I say something American?world-flags.gif

#6635 Re: Jokes » grand jokes » 2005-04-30 10:16:13

How many "Mr T"s does it take to change a lightbulb?

Mr T: " None! I ain't afraid o no dark, foo'! "

#6636 Re: Maths Is Fun - Suggestions and Comments » Upgraded the Worksheets » 2005-04-30 01:10:49

More like:

Techno Techno Techno Techno Techno Techno Techno Techno (pause) (pause) (pause) (pause) TECHNO Techno TECHNO Techno TECHNO Techno TECHNO ...

#6637 Re: This is Cool » Two different models of infinity » 2005-04-30 00:52:12

I think DoronShadmi just thought he would show everyone some stuff he has been working on.

He came, he copied, he left.

#6638 Re: Help Me ! » mathmatical formulas for trigonometry » 2005-04-29 10:56:29

Hey, mathsyperson, please register and swing by every so often, you could help solve some of the visitor's problems with that knowledge.

Here is a trick to remember:  Sohcahtoa  ... sounds like an American Indian tribe, but can help you out at exams:

Sine = Opposite / Hypotenuse         (Soh...)
Cosine = Adjacent / Hypotenuse      (...cah...)
Tangent = Opposite / Adjacent         (...toa)

#6639 Re: Maths Is Fun - Suggestions and Comments » Upgraded the Worksheets » 2005-04-29 10:45:39

Add a good techno beat, and a laser light show, and we could ALL dance.

#6640 Re: Puzzles and Games » The Fork! » 2005-04-29 10:43:08

OK gentlemen, I believe it is keyboards, at ten paces ...

#6642 Re: Jokes » The Duck » 2005-04-28 10:46:56

He has changed ... his avatar!

#6644 Re: Guestbook » maths » 2005-04-28 10:29:53

I am glad you enjoy the worksheets. You wouldn't BELIEVE how much work I have gone to in creating that software.

#6645 Re: Introductions » Greetings, one and all. » 2005-04-28 00:13:09

Just amazing ... so there are only 100,000 Jersey-ites (Jersians?), and not all of those would speak Jersey French. Must make it a rare language. Can you speak some of it?

You could go to France, speaking English. If they look down on you, you could speak to them in Jersey French, pointing out that YOU speak a truer French than their modern rubbish. big_smile

#6646 Re: Guestbook » I Love My Maths » 2005-04-27 23:36:02

Thank you, sean, much appreciated. That kind of comment keeps me wanting to add more!

Anyway, register as a member and join in the mad discussions.

#6647 Re: Introductions » Greetings, one and all. » 2005-04-27 22:53:17

And you are basically just off the French coast.

Is there much french spoken there - I notice lots of french placenames.

#6648 Re: Guestbook » maths » 2005-04-27 22:49:48

You can say more, if you want. It is only the whole world watching.

#6649 Re: Maths Is Fun - Suggestions and Comments » Our New Forum » 2005-04-27 10:21:22

Good suggestion banapples!

And welcome to the forum.

#6650 Re: Help Me ! » Algebra help bad » 2005-04-27 10:10:44

That is True!

But you should always be careful of zeros! Because zero times anything is zero. So I always work around them.

But in this case, YES, zero also works.

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