Search found 4099 matches

by zenten
Sat Feb 21, 2015 4:10 pm UTC
Forum: Fictional Science
Topic: *Very* high temperature superconductors
Replies: 26
Views: 12011

Re: *Very* high temperature superconductors

Here's something I think might be funny: Suppose we found a high tempurature superconductor with a Tc of 5 degrees C? How about this: a superconductor with a Tc just below freezing (0 C). I'm thinking something like that could be used to create an international electrical grid, with power lines run...
by zenten
Fri Sep 26, 2014 2:04 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1426: "Reduce your payment"
Replies: 35
Views: 9546

Re: 1426: "Reduce your payment"

I got so confused by this one because it took me awhile to see what paper had to do with bill payments.
by zenten
Wed Jun 04, 2014 3:09 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1377: "Fish"
Replies: 288
Views: 26641

Re: 1377: "Fish"

Space is big. Inverse square laws are a thing. Classic storylines nonwithstanding, it'd actually be pretty danged hard to pick of broadcasts of I Love Lucy across light years. Certain military radars might be another story, but still. In the long run, spectroscopy may provide more interesting resul...
by zenten
Sun Oct 20, 2013 7:52 pm UTC
Forum: What If?
Topic: What-If 0026: "Leap Seconds"
Replies: 79
Views: 20056

Re: What-If 0026: "Leap Seconds"

What about really big rail guns to hurl rocks into space and out of orbit, pointed in the right direction to speed up the Earth's rotation appropriately?
by zenten
Fri Sep 27, 2013 5:59 pm UTC
Forum: Religious Wars
Topic: Why aren't cell providers using IPv6?
Replies: 12
Views: 5880

Re: Why aren't cell providers using IPv6?

Finally: Keep using that cell data! It keeps me in a job! Well, I'm in Canada, so it probably doesn't, but since I use about 10 gigs a month it is keeping someone in a job ;) Actually, it does. I don't work for an operator. I work for a company which sells equipment (mostly through other companies)...
by zenten
Fri Sep 27, 2013 5:42 pm UTC
Forum: Religious Wars
Topic: Why aren't cell providers using IPv6?
Replies: 12
Views: 5880

Re: Why aren't cell providers using IPv6?

Aperfectring wrote:Finally: Keep using that cell data! It keeps me in a job!


Well, I'm in Canada, so it probably doesn't, but since I use about 10 gigs a month it is keeping someone in a job ;)
by zenten
Fri Sep 27, 2013 4:24 pm UTC
Forum: Religious Wars
Topic: Why aren't cell providers using IPv6?
Replies: 12
Views: 5880

Re: Why aren't cell providers using IPv6?

Thanks Aperfectring, that explained it rather well. I thought for some reason that when a provider sets up 4G or the like they would be using entirely new equipment, or at least for the equipment that functions at the IP layer. But if that's not the case that makes a lot more sense.
by zenten
Tue Sep 10, 2013 12:35 am UTC
Forum: Religious Wars
Topic: Why aren't cell providers using IPv6?
Replies: 12
Views: 5880

Re: Why aren't cell providers using IPv6?

Is it possible there's some kind of challenge in a phone being hybrid v6-v4, which it would have to be since people using their phones on wi-fi would need v4? The chicken-egg problem may be afoot here. Not as far as I know. There is for a server, but connecting to IPv4 servers using an IPv6 client ...
by zenten
Sat Aug 17, 2013 7:00 pm UTC
Forum: Language/Linguistics
Topic: A certain "backwards" phrasing in English
Replies: 18
Views: 8883

Re: A certain "backwards" phrasing in English

I think it needs to be "and into life comes" to be correct.
by zenten
Sat Aug 17, 2013 6:19 pm UTC
Forum: Language/Linguistics
Topic: Begging the Question
Replies: 19
Views: 8899

Re: Begging the Question

Begging the question means something very distinct, and so if we give up and say "sure, it means raises the question now" then we're losing a great phrase with specific usage. And we don't need "begging the question" to mean "raises the question" because we can say &qu...
by zenten
Sat Aug 17, 2013 4:25 pm UTC
Forum: Religious Wars
Topic: Programming Language Alignment Chart?
Replies: 32
Views: 25028

Re: Programming Language Alignment Chart?

Good should be languages taught a lot in university and thought of as "elegant" but not used much in the real world, like Prolog or Scheme. Neutral (on the good/evil scale) should be languages used a lot in the real world, like Java or C#. Evil should be languages that people shudder to us...
by zenten
Sat Aug 17, 2013 4:00 pm UTC
Forum: Religious Wars
Topic: Why aren't cell providers using IPv6?
Replies: 12
Views: 5880

Re: Why aren't cell providers using IPv6?

But that doesn't address what I'm talking about. I get why businesses and homes aren't clamoring to switch to IPv6 for regular Internet connections, as the benefit is outweighed by the cost of switching. What I don't get is why cellphone providers specifically aren't switching, since the benefit is ...
by zenten
Thu Aug 15, 2013 12:13 pm UTC
Forum: Religious Wars
Topic: Why aren't cell providers using IPv6?
Replies: 12
Views: 5880

Why aren't cell providers using IPv6?

Note: I couldn't think of a more appropriate forum than Religious Wars for this, even though it's not quite a good fit. Mods, please move it if there is a more appropriate one. OK, so why don't cell providers use IPv6? They're adding new kinds of networks with new kinds of phones all the time, so th...
by zenten
Sat Aug 10, 2013 2:48 pm UTC
Forum: Language/Linguistics
Topic: Globbing in natural languages
Replies: 1
Views: 1734

Globbing in natural languages

Could the concept of computers of globbing work with natural languages that people use, as basically a replacement at least some of the time for things like plurals and maybe even conjunctions? I get that regular expressions would be too complicated to work through, but simple globbing is easy enoug...
by zenten
Sat Aug 10, 2013 12:01 am UTC
Forum: Religious Wars
Topic: Does anyone use the Vim HJKL cursor keys?
Replies: 77
Views: 88417

Re: Does anyone use the Vim HJKL cursor keys?

I spend most of my text editing telnetting into SCO 5.0.7 boxes with vt220 term type so the arrow keys don't work for me anyway. <shudder> Well, the port to Linux should be done soon (already at the point that I can play with it), but I don't think the vt220 term emulation (too many custom utilitie...
by zenten
Fri Aug 09, 2013 11:16 am UTC
Forum: Religious Wars
Topic: Does anyone use the Vim HJKL cursor keys?
Replies: 77
Views: 88417

Re: Does anyone use the Vim HJKL cursor keys?

I spend most of my text editing telnetting into SCO 5.0.7 boxes with vt220 term type so the arrow keys don't work for me anyway.
by zenten
Thu Aug 08, 2013 7:39 pm UTC
Forum: The Help Desk
Topic: Managing many different reverse ssh tunnels
Replies: 0
Views: 1673

Managing many different reverse ssh tunnels

So where I work we're switching over our main server product from an old Unix flavour to Linux. We'll be offering it for Red Hat or CentOS (customer's choice) 6.4. Since we currently have had issue getting our customers setting up port forwarding correctly for the servers I am wanting to set up a re...
by zenten
Mon Aug 05, 2013 4:41 pm UTC
Forum: Fictional Science
Topic: *Very* high temperature superconductors
Replies: 26
Views: 12011

Re: *Very* high temperature superconductors

OK, so the Iron Man suit as used in the movies (I don't want to get into an argument based on it working differently in one of the comics or something) is not a very efficient design. I really don't have an issue with that. If Tony Stark in the movies *could* find a way to build one he would even t...
by zenten
Sat Aug 03, 2013 10:43 pm UTC
Forum: Fictional Science
Topic: *Very* high temperature superconductors
Replies: 26
Views: 12011

Re: *Very* high temperature superconductors

I'm not sure why you're discounting fans. They're a lot more energy efficient with superconductors. They're just neither sufficiently glowy nor particularly good for zapping people repulsor-style. OK, so the Iron Man suit as used in the movies (I don't want to get into an argument based on it worki...
by zenten
Sat Aug 03, 2013 4:48 am UTC
Forum: Science
Topic: Living in a earth-like moon orbiting a planet
Replies: 58
Views: 20595

Re: Living in a earth-like moon orbiting a planet

Wouldn't having Beta's orbitial plane around Alpha be tilted compared to Alpha's orbitial plane around the sun give Beta more typical Earth like seasons? Also, could another small body (Gamma?) orbit Beta? Or would Alpha keep that from happening? How prominent would Alpha's other moons look from Beta?
by zenten
Sat Aug 03, 2013 4:24 am UTC
Forum: Science
Topic: AIs and Animals
Replies: 43
Views: 14024

Re: AIs and Animals

Intelligence isn't one thing though. It gets a bit messy because living things love to recombine distinct parts in different ways for different functions, but say being good at language is a different thing from recognizing objects, which is a different thing from recognizing you are being hunted. S...
by zenten
Sat Aug 03, 2013 3:55 am UTC
Forum: Science
Topic: How did we figure out the Earth's mass?
Replies: 28
Views: 9018

Re: How did we figure out the Earth's mass?

Eratosthenes experiment is pretty trivial to do. If you're on a new planet, exploring and mapping your new environs is going to be a pretty high priority. Once you've mapped a few hundred miles and computed latitudes, you're done. I wonder what the most unexpected possible sight would be if you wer...
by zenten
Sat Aug 03, 2013 3:44 am UTC
Forum: Science
Topic: Runner on a Treadmill
Replies: 46
Views: 12123

Re: Runner on a Treadmill

Hmm. So might increasing stride length allow for progressively better balance, making the leveraging of air resistance less important? I think it's about power. The way the hip moves and muscles work in the leg and whatnot mean that when you are moving fast relative to the ground using big strides ...
by zenten
Fri Aug 02, 2013 11:36 pm UTC
Forum: Fictional Science
Topic: *Very* high temperature superconductors
Replies: 26
Views: 12011

Re: *Very* high temperature superconductors

The glowy part is inherently inefficient though. You're heating up air a whole bunch, having it spit out all sorts of light in various directions, and having the air shoot out at a fast rate so you have to get new air. No matter what methods you use to do that you're going to be wasting a lot of en...
by zenten
Fri Aug 02, 2013 9:46 pm UTC
Forum: Fictional Science
Topic: Interstellar Travel
Replies: 50
Views: 18771

Re: Interstellar Travel

Could we hook up a bunch of these small black holes to the sun somehow to push the whole solarsystem? http://arxiv.org/pdf/0908.1803.pdf The trouble I had was how they propose to stabilize the small black holes. It's not like you can simply "pause" Hawking radiation until you want to &quo...
by zenten
Fri Aug 02, 2013 9:25 pm UTC
Forum: Fictional Science
Topic: Restricted teleportation
Replies: 22
Views: 6037

Re: Restricted teleportation

What about some quantum-entanglement handwavium? You have to physically transport some sort of entangled non-corporeal version of yourself, but once it's in a new location you can swap with it (and you can have as many copies as you like). So... very convenient to have one at work and one at home, ...
by zenten
Fri Aug 02, 2013 9:19 pm UTC
Forum: Fictional Science
Topic: *Very* high temperature superconductors
Replies: 26
Views: 12011

Re: *Very* high temperature superconductors

Sound waves already generate thrust, but not a lot. This system sounds awfully inefficient. It depends on whether you're wasting energy with your electrostatic attractors, or if the energy is . If the single-frequency ultrasoundwave was properly tuned to the parameters required by ions formed from ...
by zenten
Wed Jul 31, 2013 5:19 pm UTC
Forum: Fictional Science
Topic: Restricted teleportation
Replies: 22
Views: 6037

Re: Restricted teleportation

Is there a way to come up with a teleportation that isn't broken in some way -- that won't allow us to violate conservation of energy and a zillion other things? In other words, something that would be convenient and useful, but not make the universe completely and totally different? Possible rules...
by zenten
Wed Jul 31, 2013 11:27 am UTC
Forum: Fictional Science
Topic: *Very* high temperature superconductors
Replies: 26
Views: 12011

Re: *Very* high temperature superconductors

So I get that "hover cars", as in personal transport vehicles that use the superconductors to levitate would be possible. My question is would they make economic sense? Would you get significant energy savings over wheels (keeping in mind we'd be talking about cars where the wheels are tur...
by zenten
Tue Jul 30, 2013 12:28 am UTC
Forum: Fictional Science
Topic: Interstellar Travel
Replies: 50
Views: 18771

Re: Interstellar Travel

Could we hook up a bunch of these small black holes to the sun somehow to push the whole solarsystem? http://arxiv.org/pdf/0908.1803.pdf
by zenten
Tue Jul 30, 2013 12:05 am UTC
Forum: Fictional Science
Topic: *Very* high temperature superconductors
Replies: 26
Views: 12011

*Very* high temperature superconductors

So, lets suppose someone invents a material tomorrow with the following properties: It's a superconductor, with a critical temperature of 200 C (yes, C, not K). It has a critical magnetic field at zero Kelvin of Bc(0) = 50 T. You can use the following webpage to figure out what effects those propert...
by zenten
Mon Jul 29, 2013 11:06 pm UTC
Forum: Fictional Science
Topic: Time Travel Equilibrium
Replies: 5
Views: 5074

Re: Time Travel Equilibrium

It depends on how the time machines work, from the perspective of the user. If you can use them to just hop to whenever then you get the same issues as teleportation would have except magnified to a huge degree. If it works more like flying a plane today but also lets you travel in time then I would...
by zenten
Mon Jul 29, 2013 1:03 pm UTC
Forum: Science
Topic: Capacity of a superconducting loop?
Replies: 14
Views: 6684

Re: Capacity of a superconducting loop?

Yeah, batteries derive their power through chemical processes. A superconducting coil does not have access to any of these. It can however store energy like and inductor or a capacitor (provided you have some other electrode somewhere even if it is out at infinity). Right, I get the process is tota...
by zenten
Mon Jul 29, 2013 12:12 am UTC
Forum: Gaming
Topic: Indie & Small Press Tabletop RPGs
Replies: 153
Views: 83502

Re: Indie & Small Press Tabletop RPGs

A friend of mine just published a game called Spark. It's seeming pretty cool so far reading through it, although my ownly play experiences have been much earlier playtests from the final version.
by zenten
Sun Jul 28, 2013 11:01 pm UTC
Forum: Science
Topic: Capacity of a superconducting loop?
Replies: 14
Views: 6684

Re: Capacity of a superconducting loop?

Do you mean capacitance? If so, yeah, it is a simple calculation. In fact, most calculations of capacitance for a given geometry assume it has no resistance i.e. it is a superconductor. As such, if you look up a formula for the capacitance of a certain geometry, chances are it'll actually be for th...
by zenten
Sun Jul 28, 2013 10:06 pm UTC
Forum: Religious Wars
Topic: window manager vs desktop environments
Replies: 29
Views: 34118

Re: window manager vs desktop environments

One of the really, really minimalist window managers. Like, Ion has too much going on for it for my tastes. I haven't really found one that I'm happy with though, and sometimes just go with raw X.Org (not even the default X WM that typically comes packaged with it) and launching programs from the vi...
by zenten
Sun Jul 28, 2013 9:51 pm UTC
Forum: Religious Wars
Topic: Debian VS Ubuntu
Replies: 49
Views: 29492

Re: Debian VS Ubuntu

Debian. It works better for a server for a corporate (or other "this actually is important") environment. For workstations in such an environment I'm actually starting to like Red Hat (I'm as surprised as anyone) because they have a lot of tools that make managing a whole bunch of workstat...
by zenten
Sun Jul 28, 2013 9:45 pm UTC
Forum: General
Topic: Coming back after a long absense
Replies: 9
Views: 2804

Re: Coming back after a long absense

SecondTalon wrote:Man, that must have been quite an impression if after five years I still have negative things associated with that name.

And yes, I am still a douchebag.


I am sorry for calling you that. It was completely uncalled for.
by zenten
Sun Jul 28, 2013 9:31 pm UTC
Forum: Science
Topic: Capacity of a superconducting loop?
Replies: 14
Views: 6684

Capacity of a superconducting loop?

I can't seem to find any details on this, which seems strange as it seems like a basic question really. What are the factors for determining the capacity of a superconducting loop? Does it depend on the material type? I'm assuming that the thickness of the wire and the circumference of the loop woul...
by zenten
Sun Jul 28, 2013 7:38 pm UTC
Forum: Mathematics
Topic: Trying to find a way to describe this "set" of numbers
Replies: 24
Views: 5558

Re: Trying to find a way to describe this "set" of numbers

Seems like you're looking for Wave Functions or Interval Arithmetic . Also, "slightly different value" different from what? Hmmm... no, doesn't quite fit what I'm looking for either. By "different" I mean different from the last time you measured. No two reference frames can eve...

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