Search found 357 matches

by Aelfyre
Wed Jun 08, 2011 12:37 pm UTC
Forum: Science
Topic: Help Request - Molding Glass Over Metal
Replies: 15
Views: 2738

Re: Help Request - Molding Glass Over Metal

Velifer wrote:...and have a Magical Knowifying Device.


You down with MKD? (yeah you know me!)
by Aelfyre
Mon Jun 06, 2011 8:08 pm UTC
Forum: Your art and links
Topic: A Sony fiasco XKCD-like, anyone?
Replies: 2
Views: 3381

Re: A Sony fiasco XKCD-like, anyone?

I just thought, it would be nice, to have a comic about Sony, going basically like this: 1. Because of every wannabe-hacker in the world trying to hack Sony right now, they pull all cables until the security audit is done. 2. They notice that now, they won’t know when the audit is done, since Sony ...
by Aelfyre
Mon Jun 06, 2011 7:37 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0903: "Extended Mind"
Replies: 666
Views: 187106

Re: 0903: "Extended Mind"

I am not going to read this entire thread to see if this has been posted.. but this simplifies the process :)

http://ryanelmquist.com/cgi-bin/xkcdwiki
by Aelfyre
Mon Jun 06, 2011 2:14 am UTC
Forum: Science
Topic: Could time be measured in meters?
Replies: 83
Views: 11741

Re: Could time be measured in meters?

I wish I could have refereed to my 30cm rulers at school as "nanoseconds" and watch my teachers reaction. :D Grace Hopper would make a point of passing out nanosecond-length wire at her talks. I'm given to believe that she kept a microsecond of wire around as well to illustrate why we sho...
by Aelfyre
Fri Jun 03, 2011 5:49 pm UTC
Forum: Science
Topic: Metals don't reflect UV?
Replies: 24
Views: 8439

Re: Metals don't reflect UV?

Moose Hole wrote:This is all very interesting. How would one modify aluminum so that the energy gap is in the visible range? Or should I just punch up clear?


According to my research, you start by saying "Hello computer" into your mouse in a Scottish Accent.
by Aelfyre
Fri Jun 03, 2011 2:36 pm UTC
Forum: Fictional Science
Topic: How would you make a properly mathy magic system?
Replies: 25
Views: 7085

Re: How would you make a properly mathy magic system?

You could make a system where mana is energy in E=mc 2 . Let's say for instance, your mage creates 1 mol of hydrogen. 1 mol of hydrogen is 1g and wikipedia tells us that the energy equivalent of one gram of mass is equivalent to: 89.9 terajoules 25.0 million kilowatt-hours (≈25 GW·h) 21.5 billion k...
by Aelfyre
Thu Jun 02, 2011 2:40 pm UTC
Forum: Science
Topic: Could time be measured in meters?
Replies: 83
Views: 11741

Re: Could time be measured in meters?

If you want the conversion for measuring everyday things, a nanosecond is 29.9792458 cm long. I really do understand the concepts you guys are talking about.. and I'm not disagreeing.. but something in that sentence makes my brain twitch a little bit. :) Something in that sentence makes my brain go...
by Aelfyre
Wed Jun 01, 2011 6:28 pm UTC
Forum: Science
Topic: Metals don't reflect UV?
Replies: 24
Views: 8439

Re: Metals don't reflect UV?

Shining light onto a metal causes the electrons in the metal to oscillate according to the classical dipole oscialltor model - essentially there is a driving force (the electric field of the incident radiation), a damping force and a resonant oscillation. We can calculate the dielectric permittivit...
by Aelfyre
Wed Jun 01, 2011 6:24 pm UTC
Forum: Science
Topic: Could time be measured in meters?
Replies: 83
Views: 11741

Re: Could time be measured in meters?

gmalivuk wrote:Yeah, you could get across Texas or do California top to bottom in about that time.


Roughly the same with Florida.. assuming you're a bit of a leadfoot LOL
by Aelfyre
Mon May 30, 2011 3:55 am UTC
Forum: Fictional Science
Topic: The Light Saber problem
Replies: 122
Views: 66825

Re: The Light Saber problem

We understand plasma quite well and as far as I know there is no natural evidence to contradict what he said. We understand plasma on a basic level, and we know it can be controlled and extended with magnetic fields. This is already done with a plasma torch. Solve the problem of creating strong eno...
by Aelfyre
Thu May 26, 2011 5:04 pm UTC
Forum: Science
Topic: Could time be measured in meters?
Replies: 83
Views: 11741

Re: Could time be measured in meters?

EricH wrote:If you want the conversion for measuring everyday things, a nanosecond is 29.9792458 cm long.


I really do understand the concepts you guys are talking about.. and I'm not disagreeing.. but something in that sentence makes my brain twitch a little bit. :)
by Aelfyre
Thu May 26, 2011 12:09 pm UTC
Forum: Fictional Science
Topic: How would you make a properly mathy magic system?
Replies: 25
Views: 7085

Re: How would you make a properly mathy magic system?

Velifer wrote:
Aelfyre wrote:simply knowing math can't cause spontaneous violation of the laws of physics i.e. Stephen Hawking can't fly.

Um... Nobody told you?
Image


LOL! I stand corrected..
by Aelfyre
Tue May 24, 2011 7:07 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0902: "Darmok and Jalad"
Replies: 125
Views: 36321

Re: Darmok and Jalad

Shaka, when the walls fell. At the risk of sounding like the Star Trek fanboy that I am, it's "Darmok and Jalad at Tanagra" not Kalenda's. I always wondered why it took them so long to catch on to the metaphor thing... probably because much like most of Star Treks premises there is absolu...
by Aelfyre
Tue May 17, 2011 11:25 am UTC
Forum: Fictional Science
Topic: How would you make a properly mathy magic system?
Replies: 25
Views: 7085

Re: How would you make a properly mathy magic system?

hmm, i've not done a good job of actually explaining what I want, think of it this way, if I run a campaign with this magic system, and someone wants to be a magician, they (the player, not the character) needs to actually know math, otherwise they simply won't be able to do what they want. right.....
by Aelfyre
Tue May 17, 2011 1:31 am UTC
Forum: Fictional Science
Topic: How would you make a properly mathy magic system?
Replies: 25
Views: 7085

Re: How would you make a properly mathy magic system?

It depends on how this magic works. For example, if you want to create a fireball, where does it come from? Let's say you get the energy from another plane, to import it, you need to create some kind of small portal, but of course, the exact parameters to open a portal the right size to the fir...
by Aelfyre
Mon May 16, 2011 3:09 am UTC
Forum: Fictional Science
Topic: How would you make a properly mathy magic system?
Replies: 25
Views: 7085

Re: How would you make a properly mathy magic system?

heh, that's a good way to handwave it, but i'm not looking for a complete handwave. I want that interface to involve actual math, as in, actual formulas describing the changes the people are making to the world when they cast a spell. I want to be able to say "oh fireball? that's *equations de...
by Aelfyre
Sun May 15, 2011 11:13 pm UTC
Forum: Fictional Science
Topic: How would you make a properly mathy magic system?
Replies: 25
Views: 7085

Re: How would you make a properly mathy magic system?

I'm reading an enjoyable set of books at the moment, which involve a magic system based around mathematical manipulation of the environment (magic nanite organelles with odd effects on the world around them), to the point where one of the local sayings is something to the effect of "You can't ...
by Aelfyre
Thu May 12, 2011 2:13 pm UTC
Forum: Science
Topic: Carbon (dioxide and graphite)
Replies: 43
Views: 6523

Re: Carbon (dioxide and graphite)

idobox wrote:I heard driving a big SUV and being vegetarian makes for a smaller carbon footprint than eating meat everyday, but i don't know how true it is.


If you really want to reduce your carbon footprint, then ride a cow and eat a Minivan. :)
by Aelfyre
Tue May 10, 2011 3:50 pm UTC
Forum: Science
Topic: Carbon (dioxide and graphite)
Replies: 43
Views: 6523

Re: Carbon (dioxide and graphite)

The problem is separating the C from the O 2 . The Bosch (I think) reaction is the best way to do it, and you need a furnace at around 500 o C, which takes energy, which, most of the time, produces CO 2 . It's far more practical to just compress and bury the gas. perhaps some sort of solar furnace ...
by Aelfyre
Tue May 10, 2011 2:58 pm UTC
Forum: Fictional Science
Topic: Help me complete the standard model!
Replies: 10
Views: 6962

Re: Help me complete the standard model!

zmatt wrote:
Aelfyre wrote:because this bag had slightly more Ms than Ws..



lol I hope this was a joke.


no but it almost was.. I also stumbled across a certain number of 3s and Es but I discarded those since those must correspond to particle of imaginary mass.
by Aelfyre
Mon May 09, 2011 5:30 pm UTC
Forum: Science
Topic: Quantum Entanglement
Replies: 39
Views: 6565

Re: Quantum Entanglement

A much easier explanation for how the two electrons "know" to be opposite each other, even when they're measured at "the same time" while wildly separated in space, can be found by adopting the Many-Worlds Interpretation of quantum physics. In MWI, a quantum event of any kind ca...
by Aelfyre
Mon May 09, 2011 3:52 pm UTC
Forum: Science
Topic: Terribad physics pun
Replies: 10
Views: 3268

Re: Terribad physics pun

Moose Hole wrote:
Aelfyre wrote:Epic Rap
Kids these days. The best part of the song is the guitar, not the lyrics. It's worth nothing if you take it out.


Yes, the "guitar part" is good.. but it is somewhat difficult to convey a pun instrumentally.. :)
by Aelfyre
Mon May 09, 2011 2:51 pm UTC
Forum: Fictional Science
Topic: Help me complete the standard model!
Replies: 10
Views: 6962

Re: Help me complete the standard model!

http://en.wikipedia.org/wiki/List_of_baryons http://en.wikipedia.org/wiki/List_of_mesons That should keep you occupied for a while. :) Basically, any set of 2 or 3 that ends up with an integer charge tends to work as a particle, at least temporarily, before they decay (or in this case, get eaten ;)...
by Aelfyre
Mon May 09, 2011 2:34 pm UTC
Forum: Science
Topic: Terribad physics pun
Replies: 10
Views: 3268

Re: Terribad physics pun

Physics teacher: "(last sentence of problem) Knowing the rotational momentum of the system and the angular velocity before the tiger lands on the disk, find the moment of inertia of the tiger; that is, the I of the tiger." Me: (facepalm) the italics really threw me off for a sec.. the sla...
by Aelfyre
Mon May 09, 2011 2:25 pm UTC
Forum: Fictional Science
Topic: Help me complete the standard model!
Replies: 10
Views: 6962

Help me complete the standard model!

Ok, so I noticed some instances of symmetry between quantum level and macroscopic level structures today.. specifically there are 6 flavors of quark and 6 colors of M & Ms.. creepy huh? but it gets wierder.. obviously the Ms are the particles and the Ws are their anti-particle equivalents becaus...
by Aelfyre
Tue May 03, 2011 8:27 pm UTC
Forum: Science
Topic: A couple of quantum thought experiments/ideas
Replies: 16
Views: 2672

Re: A couple of quantum thought experiments/ideas

I have wondered about the need for an "outside observer" to collapse a wave function.. It seems to me that most macroscopic matter collapses its own wave-function on a continuous basis due to being molecularly bound so that it is comprised of a combined wave-function that is the average of...
by Aelfyre
Tue May 03, 2011 5:01 pm UTC
Forum: Fictional Science
Topic: wormhole like objects
Replies: 16
Views: 4420

Re: wormhole like objects

I have thought about this a bit and I think the issue is that a wormhole will not prevent a timetraveling paradox if it in fact is merely a shortcut through the same 3 dimensional spacetime fabric that you would be travelling thru the more circuitous "straight line method" It would be poss...
by Aelfyre
Fri Apr 29, 2011 3:33 pm UTC
Forum: Fictional Science
Topic: The Light Saber problem
Replies: 122
Views: 66825

Re: The Light Saber problem

Velifer wrote:The Force: It's not midichloramineans, it's nitrates from cured pork products.

Jedi Knights Wanted: Vegans and those who keep Kosher need not apply.



ah comon now.. no need to Discriminate against the entire Jewdi Order :)
by Aelfyre
Fri Apr 29, 2011 3:32 pm UTC
Forum: Science
Topic: Why do matter and anti-matter annihilate in the first place?
Replies: 38
Views: 7191

Re: Why do matter and anti-matter annihilate in the first pl

Yup, that won't work. Would ruin gravity caused by light, which have actually been able to measure. yeah that's the main hole i see as well, that light prefers regular mass gravity.. of course the universe in general tends to prefer regular matter over anti-matter... eh.. it was a thought nayway I ...
by Aelfyre
Fri Apr 29, 2011 12:18 pm UTC
Forum: Science
Topic: Why do matter and anti-matter annihilate in the first place?
Replies: 38
Views: 7191

Re: Why do matter and anti-matter annihilate in the first pl

If there is attraction OR repulsion due to gravity between two such particles, it would be exceedingly small...likely too small to be relevant. IIRC they annihilate themselves somehow, I thought they had opposite charge. No. It has positive mass. Really. Positive. What does? The particle pairs from...
by Aelfyre
Wed Apr 27, 2011 9:48 pm UTC
Forum: Science
Topic: Why do matter and anti-matter annihilate in the first place?
Replies: 38
Views: 7191

Re: Why do matter and anti-matter annihilate in the first pl

Anti-particles have positive mass/energy. As for why we aren't swimming in a sea of them, there's always the possibility that some conservation law isn't being satisfied. This keeps a lot of positive mass stuff from appearing when we'd otherwise expect it to. Be careful when you talk about negative...
by Aelfyre
Wed Apr 27, 2011 5:51 pm UTC
Forum: Science
Topic: Why do matter and anti-matter annihilate in the first place?
Replies: 38
Views: 7191

Re: Why do matter and anti-matter annihilate in the first pl

As to "why" matter and antimatter annihilate (and I think some people might not like this explanation): You observe it in experiments and it's a crucial ingredient for the relevant underlying theories (quantum field theories) that work very well. Now, when bringing gravity in, it is indee...
by Aelfyre
Wed Apr 27, 2011 3:42 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0891: "Movie Ages"
Replies: 158
Views: 39948

Re: 891: Movie Ages

Faranya wrote:Aw man, I saw Jurassic Park when it came out.

When I was 3.

At a drive in theater.

Which doesn't exist anymore.


I saw Star Wars, the original in a drive in.. which has been gone for decades now LOL
by Aelfyre
Wed Apr 27, 2011 1:44 pm UTC
Forum: Science
Topic: Why do matter and anti-matter annihilate in the first place?
Replies: 38
Views: 7191

Re: Why do matter and anti-matter annihilate in the first pl

As for why matter and antimatter annihilate, I haven't got a clue. The way I think about it is that a quark is like a small twist or knot in spacetime, and a subatomic particle is like a clump of these knots. When a particle and antiparticle meet (they contain opposite sign quarks), those twists ca...
by Aelfyre
Tue Apr 26, 2011 6:23 pm UTC
Forum: Science
Topic: Why do matter and anti-matter annihilate in the first place?
Replies: 38
Views: 7191

Why do matter and anti-matter annihilate in the first place?

ok, I've been thinking about this for some time.. years really.. but recent developments have brought it back to my mind. We know that matter and anti-matter annihilate when they contact each other but do we *really* know why? Is it definatley the "opposite charges" of the particles? When ...
by Aelfyre
Thu Apr 21, 2011 8:28 pm UTC
Forum: Fictional Science
Topic: tractor beam
Replies: 27
Views: 4171

Re: tractor beam

a weapon capable of annihilating all the spacetime between you and the object That would be nice. Any idea what kind of science, possibly fictionnal, would allow that? In my home galaxy it is known as the FADE². A Focused Anti-Dark Energy Field Array Distribution Emitter, it basically reverses the ...
by Aelfyre
Wed Apr 20, 2011 4:06 pm UTC
Forum: Fictional Science
Topic: tractor beam
Replies: 27
Views: 4171

Re: tractor beam

Anyone has an idea how a tractor beam could work? And no, photonic pinches do not qualify. I want a tractor beam actually able to attract a macroscopic object from a distance. the answer btw is obviously a weapon capable of annihilating all the spacetime between you and the object so that it collap...
by Aelfyre
Tue Apr 19, 2011 6:40 pm UTC
Forum: Fictional Science
Topic: tractor beam
Replies: 27
Views: 4171

Re: tractor beam

idobox wrote:What about a system that works like a photon pinch, but instead of throwing light (as in not heavy) photons, it would send heavy stuff, like lions.


How I first read this... a whole different kinda grapple :)
by Aelfyre
Tue Apr 19, 2011 11:08 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0887: "Future Timeline"
Replies: 192
Views: 58384

Re: 0887: "Future Timeline"

While it currently remains positive, if the fertility rate keeps changing it must necessarily slow, stop and even reverse. That's not a valid conclusion. Mathematically you can have a series that keeps increasing to infinity (limit), yet always has a decreasing derivative (rate). Sum of 1/sqrt(n) i...
by Aelfyre
Mon Apr 18, 2011 7:04 pm UTC
Forum: Fictional Science
Topic: Time Stop (hypothetical)
Replies: 17
Views: 4857

Re: Time Stop (hypothetical)

What works without all the struggle is to "simply" slow down everything but yourself by a factor between 2 and 10. Everything gets colder, air becomes thicker, everything is red-shifted, but you can still do a bunch of things, like waving your arms at supersonic speeds. even simpler than ...

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