Search found 24 matches

by Hydralisk
Wed May 05, 2010 4:22 pm UTC
Forum: Science
Topic: FTL-com without breaking *too* many laws of physics
Replies: 45
Views: 5676

Re: FTL-com without breaking *too* many laws of physics

Is there a reason your wormhole can't be bi-directional? Well in case there's a huge pile up or letters get lost. You know how it is, be it via wormholes or postal van, letters will get messed up if you make things too complicated. Two letters in a wormhole collide with each other, and cancel their...
by Hydralisk
Tue May 04, 2010 10:16 am UTC
Forum: Science
Topic: FTL-com without breaking *too* many laws of physics
Replies: 45
Views: 5676

Re: FTL-com without breaking *too* many laws of physics

Futurama still has the best answer for this; increase the speed of light. :D Aside from that, I think that having miniture, man-made, portable wormholes that are only big enough to send communications (i.e. Radiowaves) would be the best answer. Sorta like having a big red post box, except there's tw...
by Hydralisk
Thu Apr 22, 2010 2:19 pm UTC
Forum: Science
Topic: Getting killed by a meteor
Replies: 19
Views: 2187

Re: Getting killed by an meteor

@JBJ, surely a bullet falling at terminal velocity would kill you? I'm pretty sure even a small chunk of rock would kill, or at least seriously wound you, if it was directly impacting your skill/head?

Besides, a small rock hitting you directly is even less likely than a largish one hitting you!
by Hydralisk
Mon Apr 12, 2010 4:33 pm UTC
Forum: Mathematics
Topic: New value of pi?
Replies: 45
Views: 6212

Re: New value of pi?

Wow, one page and you guys are already bored of one crackpot mathematical "proof" and looking for another! I clearly underestimated you lot! :D
by Hydralisk
Thu Apr 08, 2010 9:56 am UTC
Forum: Mathematics
Topic: New value of pi?
Replies: 45
Views: 6212

New value of pi?

Somehow I very much doubt it.

What do you guys think? Elaborate hoax or deluded moron?
by Hydralisk
Mon Sep 14, 2009 10:09 am UTC
Forum: Logic Puzzles
Topic: Three princesses
Replies: 446
Views: 196150

Re: Three princesses

Ask one sister "Would both your sisters give a consistant answer if I asked them this question repeatedly?". If you've asked the eldest, she will say no, and you can marry her. If you've asked the youngest, she will say no, and you can marry her. If you've asked the middle one,...
by Hydralisk
Fri Sep 04, 2009 3:43 pm UTC
Forum: Science
Topic: Childhood (not so) crackpot theories
Replies: 420
Views: 34810

Re: Childhood (not so) crackpot theories

If so, your sons have a good chance of being colour-blind, I'm sorry to say. Colour-blindness really isn't bad. What you lose in the ability to tell light pink from light grey etc, you more than gain in a good topic of conversation at nearly all social events. What you're trying to say is "I'm...
by Hydralisk
Tue Aug 25, 2009 6:38 pm UTC
Forum: Mathematics
Topic: Question on Gram-Schmidt Process.
Replies: 7
Views: 949

Re: Question on Gram-Schmidt Process.

Yeah, sorry about that. To clarify, I was wondering how


x3 = (0,0,1,1)-1/2(1,0,1,0)-1/6(1,2,-1,0)

Simplifies to;

x3 = 1/6(-2, 2, 2, 6).

many thanks. :)
by Hydralisk
Tue Aug 25, 2009 4:28 pm UTC
Forum: Mathematics
Topic: Question on Gram-Schmidt Process.
Replies: 7
Views: 949

Re: Question on Gram-Schmidt Process.

OK, thanks a lot. I knew it was something simplish but I couldn't quite put my finger on it. So using the formula you've given me, I've calculated as such; x3 = (0,0,1,1) - ((0,0,1,1)*(1,0,1,0)/(1,0,1,0)*(1,0,1,0))*(1,0,1,0) - ( (0,0,1,1)*(1/2(1,2,-1,0))/(1/2*1/2)(1,2,-1,0)*(1,2,-1,0) ) *(1/2)(1,2,-...
by Hydralisk
Tue Aug 25, 2009 3:14 pm UTC
Forum: Mathematics
Topic: Question on Gram-Schmidt Process.
Replies: 7
Views: 949

Question on Gram-Schmidt Process.

I've been given a question in a specimen paper on the Gram-Schmidt process; Let U be the subspace of R^4 with the basis (1; 0; 1; 0); (0; 1; 􀀀1; 0); (0; 0; 1; 1): Use the Gram-Schmidt process to nd an orthonormal basis for U. Note - R4 is that strange looking R with a double | at the left of it. Rig...
by Hydralisk
Wed Aug 05, 2009 1:38 pm UTC
Forum: School
Topic: High School Pranks
Replies: 684
Views: 84314

Re: High School Pranks

My school didn't have much in the way of prankage but what I would love to have done is make a huge fort out of tables next to the car park entrance and arm sentries with super soakers!
by Hydralisk
Wed Aug 05, 2009 12:01 pm UTC
Forum: Logic Puzzles
Topic: Unusual Cake Slicing
Replies: 84
Views: 18514

Re: Unusual Cake Slicing

Surely if you know so much about the poison in the middle of the cake you would just eat around it anyway? At the very least I'd get a new cake.
by Hydralisk
Tue Apr 14, 2009 5:04 pm UTC
Forum: Science
Topic: One way to avoid being stretched apart by a blackhole...?
Replies: 100
Views: 5904

Re: One way to avoid being stretched apart by a blackhole...?

Of course you'd want to wear the Rings of Saturn if you were falling into a black hole - go out in style! :D

Seriously though, how would they affect you at all? You can't really "wear" the rings of Saturn (Planet-sized people are excluded from this statement) anyway.
by Hydralisk
Fri Dec 12, 2008 7:31 pm UTC
Forum: Mathematics
Topic: I hate physicists
Replies: 24
Views: 3161

Re: I hate physicists

In my experience, Physics you have to struggle with the practical and physical aspects of things that you learn - e.g. Trying to get your head around Special Relativity etc. Mathematics is (for the most part) theoretical work, but compensates by being twice as complicated. :D Could be wrong though, ...
by Hydralisk
Thu Dec 11, 2008 2:50 pm UTC
Forum: Science
Topic: [Physics]Light (it's speed and fun things to do with it...)
Replies: 27
Views: 3102

Re: [Physics]Light (it's speed and fun things to do with it...)

How does one derive relativity? I thought the key components of it could only be observed I mean The one that light is a constant Once the assumption that c is a constant and independent of the reference frame is made, I thought that the special relativity effects (time dilation and length contract...
by Hydralisk
Thu Dec 11, 2008 2:42 pm UTC
Forum: Mathematics
Topic: Calculus Question: help appreciated.
Replies: 4
Views: 949

Calculus Question: help appreciated.

Quick Calculus Question here.It's 2nd Year uni work so don't panic if you can't get it! :p A solid of variable density is in the form of a sphere (x^2 + y^2 + z^2 < a^2, where a>0. The density at the point (x,y,z) is z^2. Use triple integration to find the mass of the solid. Solution given: δΦ/δn = ...
by Hydralisk
Mon Nov 24, 2008 10:03 am UTC
Forum: Logic Puzzles
Topic: Double trick Question
Replies: 19
Views: 3184

Re: Double trick Question

Good grief, why are you lot obsessed with weighing feathers? :p I certainly know which pound of material I would take! :) Actually, that's a thought - put both in individual pockets and see which one weighs you down more. W = mg so for constant weight and gravity, you should get some kind of a sensi...
by Hydralisk
Sun Nov 16, 2008 5:32 pm UTC
Forum: Fictional Science
Topic: What is the mass of a feather?
Replies: 229
Views: 312931

Re: What is the mass of a feather?

I wouldn't normally endorse this, but I'm just going to ask Jesus.
by Hydralisk
Sat Nov 15, 2008 11:02 pm UTC
Forum: Science
Topic: You might be a physics major if...
Replies: 540
Views: 56048

Re: You might be a physics major if...

YMBAPM if you ever drunkenly tried to catch a neutrino.

Don't judge me! :P
by Hydralisk
Sat Nov 15, 2008 10:55 pm UTC
Forum: Fictional Science
Topic: What is the mass of a feather?
Replies: 229
Views: 312931

Re: What is the mass of a feather?

I see... In that case (sorry if this has been mentioned too!) couldn't you just a) figure what the feather was made of (carbon mostly presumably) b) Calculate the number of atoms/molecules in said feather using Avogadros' number etc.? [/not-a-chemist] c) Figure out the weight from that? Or Put the f...
by Hydralisk
Sat Nov 15, 2008 10:48 pm UTC
Forum: Science
Topic: Free energy?
Replies: 39
Views: 3457

Re: Free energy?

Build a working model of this and I shall believe every word of it.

Also, why steel? Aluminium or carbon fibre is much lighter, and will do the job just the same. Not that it will give free energy mind. :p
by Hydralisk
Fri Nov 14, 2008 11:58 am UTC
Forum: Fictional Science
Topic: What is the mass of a feather?
Replies: 229
Views: 312931

Re: What is the mass of a feather?

Couldn't you just use Archimede's principle?
by Hydralisk
Fri Nov 14, 2008 11:48 am UTC
Forum: Science
Topic: Alternate forms of launching stuff into space
Replies: 51
Views: 4101

Re: Alternate forms of launching stuff into space

The moon doesn't rotate, it's tidally locked w.r.t the Earth. So you'd only need one giant roller thing. Doubt it would work though - the roller would need to be f*cking huge for a start, and with all those moving parts, something will give sooner rather than later. My question is this: why do rocke...
by Hydralisk
Tue Nov 11, 2008 1:55 pm UTC
Forum: Fictional Science
Topic: Buttered Cat Paradox
Replies: 110
Views: 25867

Re: Buttered Cat Paradox

You guys have never watched Mythbusters have you?

Buttered toast does not always fall butter side down, in fact it's the same as unbuttered/double buttered toast - it's about 50-50 chance.

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