Search found 71 matches

by Winter Man
Tue Feb 14, 2012 8:28 pm UTC
Forum: Science
Topic: Building an MDP Thruster. Need help with ignition circuit.
Replies: 4
Views: 1596

Re: Building an MDP Thruster. Need help with ignition circui

You could use something like a Cockroft-Walton or Marx generator. Output is high voltage pulsed DC from low voltage DC.

edit: And they're only capacitors and diodes or spark gaps respectively.
by Winter Man
Fri Jan 27, 2012 2:03 pm UTC
Forum: Science
Topic: Science needs a symbol
Replies: 83
Views: 13324

Re: Science needs a symbol

drash wrote:Always been a fan of the humble delta:

Image

For bonus points, superimpose it over a picture of the Earth from space.


Sort of like this?
Image
by Winter Man
Sat Dec 03, 2011 8:09 pm UTC
Forum: Fictional Science
Topic: Artificially induced genetic diversity
Replies: 3
Views: 4178

Re: Artificially induced genetic diversity

Take a few hundred million embryos, bombard them with neutron radiation. Test them all for every known genetic disorder, filter them out. Observe your new massive baby cheetah population and see which make it to maturity without issue. Clone those ones and introduce them to the wild. (what? it's in ...
by Winter Man
Thu Dec 01, 2011 6:23 pm UTC
Forum: Science
Topic: The Observable Universe
Replies: 10
Views: 2026

Re: The Observable Universe

http://scaleofuniverse.com/

That one's better.
by Winter Man
Thu Dec 01, 2011 12:38 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0984: "Space Launch System"
Replies: 94
Views: 25069

Re: 0984: "Space Launch System"

*disappears to play Kerbal*
by Winter Man
Wed Oct 19, 2011 4:08 pm UTC
Forum: Fictional Science
Topic: Portals that don't allow you to create energy
Replies: 22
Views: 7174

Re: Portals that don't allow you to create energy

You could have it drain rest energy of the thing it's gravitationally attracted to, making the stuff that the planet or moon or whatever's made of horribly unstable. Adding instability sounds like adding energy to me. Point. What about simply having it drain energy from the fantastical device maint...
by Winter Man
Tue Oct 04, 2011 11:18 pm UTC
Forum: Science
Topic: "borrowing" energy
Replies: 25
Views: 3927

Re: "burrowing" energy

Is burrowed energy measured in moles? :P

But seriously, I remember reading about it possibly in The Little Book of String Theory by... err... I can't remember. Look it up. Short & sweet read.
by Winter Man
Sat Oct 01, 2011 9:18 pm UTC
Forum: Science
Topic: How Does A Bike Work?
Replies: 20
Views: 4566

Re: How Does A Bike Work?

You can't push a bike down a hill and expect it to stay upright. It falls over. The rider's what keeps it upright.
by Winter Man
Tue Sep 27, 2011 10:50 pm UTC
Forum: Fictional Science
Topic: Portals that don't allow you to create energy
Replies: 22
Views: 7174

Re: Portals that don't allow you to create energy

You could have it drain rest energy of the thing it's gravitationally attracted to, making the stuff that the planet or moon or whatever's made of horribly unstable.
by Winter Man
Fri Aug 12, 2011 7:57 am UTC
Forum: Fictional Science
Topic: Powerful realistic tech.
Replies: 22
Views: 4235

Re: Powerful realistic tech.

What I mean is, I don't find them a significant threat. They cannot multiply and expand much faster than the civilisation would built them, especially if said civilisation is actively trying to destroy them. But yeah, they would be the perfect tool for planetary scale engineering. See: Replicators ...
by Winter Man
Fri Jun 17, 2011 8:27 pm UTC
Forum: Science
Topic: This seems impossible.
Replies: 33
Views: 6636

Re: This seems impossible.

gmalivuk wrote:Yes, electrons ... interfere with themselves.

No, it has nothing to do with whether someone happens to be looking.



Dirty buggers.
by Winter Man
Mon May 09, 2011 5:09 pm UTC
Forum: News & Articles
Topic: Computers driven mad
Replies: 9
Views: 1939

Re: Computers driven mad

This can only be a bad idea. The whole point of having intelligent computers is so they can make rational decisions where people can't be trusted to. Mad computers = irrational. Just say neurotoxin.
by Winter Man
Tue May 03, 2011 3:24 pm UTC
Forum: Fictional Science
Topic: wormhole like objects
Replies: 16
Views: 4363

Re: wormhole like objects

The time dilation caused by accelerating B would carry over to A, meaning they're in the same reference frame. It doesn't matter. Causality can be violated even if instantaneous travel only happens between points that aren't moving relative to each other. It does matter, because it's not instantane...
by Winter Man
Fri Apr 22, 2011 11:16 am UTC
Forum: Science
Topic: Carbon (dioxide and graphite)
Replies: 43
Views: 6462

Re: Carbon (dioxide and graphite)

The problem is separating the C from the O2. The Bosch (I think) reaction is the best way to do it, and you need a furnace at around 500oC, which takes energy, which, most of the time, produces CO2. It's far more practical to just compress and bury the gas.
by Winter Man
Thu Apr 14, 2011 1:42 pm UTC
Forum: Fictional Science
Topic: wormhole like objects
Replies: 16
Views: 4363

Re: wormhole like objects

Wormholes don't prevent the FTL == time travel problems, except if they're magically exempt from time dilation. (But that causes even more problems than FTL does originally.) As Ben mentioned, c is not so much the speed of light as the speed of the universe, and arriving before the rest of the univ...
by Winter Man
Wed Apr 13, 2011 6:04 pm UTC
Forum: Fictional Science
Topic: wormhole like objects
Replies: 16
Views: 4363

Re: wormhole like objects

Does it really matter if you get there before your light? Your light could take a complex route through a bunch of mirrors and arrive at the other end of the hallway after you've walked it and time won't tear itself apart.
by Winter Man
Mon Apr 11, 2011 9:08 am UTC
Forum: Fictional Science
Topic: Design a One Stage Launch Craft?
Replies: 99
Views: 22766

Re: Design a One Stage Launch Craft?

Couldn't you just get a little nuclear reactor as a heater, and use super heated water as propellant. Or ammonia, if you're elsewhere in the solar system.
by Winter Man
Thu Mar 31, 2011 11:09 am UTC
Forum: News & Articles
Topic: Solar 'Artificial Leaf' Is Unveiled by Researchers
Replies: 18
Views: 3120

Re: Solar 'Artificial Leaf' Is Unveiled by Researchers

Damn it, I was really hoping they actually said POWAH.

edit: Ha, another one!

Edit: GAAAHHHH!!!
by Winter Man
Thu Mar 10, 2011 4:58 pm UTC
Forum: Science
Topic: Creation of a Black Hole
Replies: 30
Views: 3345

Re: Creation of a Black Hole

What would it take to compress a 100m asteroid into the head of a pin? I'm gonna guess, more than you would get out of it. That must be the case, right? Or you could build a perpetual power source, which are of course, impossible. Nah, because you're only getting as much energy out as there is matt...
by Winter Man
Mon Jan 31, 2011 6:45 pm UTC
Forum: Science
Topic: "The battery that isn't a battery" - my own simple theory.
Replies: 37
Views: 9219

Re: "The battery that isn't a battery" - my own simple theor

Heat ==> Electricity has been done repeatedly for years. Look up the Peltier-Seebeck effect.
by Winter Man
Wed Jan 19, 2011 9:28 am UTC
Forum: Fictional Science
Topic: Possible alien technologies, trade secrets
Replies: 38
Views: 7390

Re: Possible alien technologies, trade secrets

Something like this? http://www.qubenzis.com/q/wp-content/uploads/alien-03-alien-face-strata-apherecom-blog.jpg Wankel. Rotary. Engine. Heh. Nah, man. He's (or she's) clearly smirking. Also: No human being can accurately draw the housing for a Wankel (HAR!) rotor without the use of computers. It. I...
by Winter Man
Tue Jan 18, 2011 11:33 pm UTC
Forum: Science
Topic: Who inspires you?
Replies: 10
Views: 1412

Re: Who inspires you?

Tesla. Surprised no one's mentioned him yet. All he did for the modern way of life is just jaw dropping.
by Winter Man
Tue Jan 04, 2011 9:37 pm UTC
Forum: Science
Topic: Anti-Matter Alchemy?
Replies: 19
Views: 2267

Re: Anti-Matter Alchemy?

The energy released by the annihilation would probably just asplode the rest of the atom. It's not something that would be useful.
by Winter Man
Sun Nov 21, 2010 12:58 pm UTC
Forum: Science
Topic: How to go faster than the speed of light.
Replies: 40
Views: 4523

Re: How to go faster than the speed of light.

Best way to go FTL is to (somehow) get more negative mass than the regular mass you want to move. Problems include time dilation opposite to what you'd get around a black hole and the horrible instability of tachyonic.. er... stuff. Tachyons do not have negative rest mass but rather imaginary rest ...
by Winter Man
Sun Nov 21, 2010 1:01 am UTC
Forum: Science
Topic: How to go faster than the speed of light.
Replies: 40
Views: 4523

Re: How to go faster than the speed of light.

Best way to go FTL is to (somehow) get more negative mass than the regular mass you want to move. Problems include time dilation opposite to what you'd get around a black hole and the horrible instability of tachyonic.. er... stuff.
by Winter Man
Sat Nov 20, 2010 8:26 pm UTC
Forum: Science
Topic: Orbital Deathrays / Solar Energy Collectors
Replies: 26
Views: 3062

Re: Nuclear Fusion

HungryHobo wrote:pity we don't have von neuman machines yet.


http://reprap.org/wiki/Main_Page

We're getting closer. Just needs a few robot arms and something to refine moon rock.
by Winter Man
Fri Nov 19, 2010 11:28 pm UTC
Forum: News & Articles
Topic: Artificial Singer: Sold Out Concerts
Replies: 32
Views: 4123

Re: Artificial Singer: Sold Out Concerts

Doubt it'll take off. Remember Gorillaz? Great band, but they're not really set apart by being a cartoon. You doubt that a multi-million dollar cross medium franchise might one day "take off"? Unfortunately it's not really a hologram... If you look at the making of here you can see it's s...
by Winter Man
Thu Nov 18, 2010 4:35 pm UTC
Forum: News & Articles
Topic: Artificial Singer: Sold Out Concerts
Replies: 32
Views: 4123

Re: Artificial Singer: Sold Out Concerts

Doubt it'll take off. Remember Gorillaz? Great band, but they're not really set apart by being a cartoon.
by Winter Man
Wed Nov 17, 2010 7:11 pm UTC
Forum: Science
Topic: Helium
Replies: 18
Views: 2130

Re: Helium

Use heaters to warm the helium. Same mass - higher displacement. Might need a better balloon than them rubber things though.
by Winter Man
Sat Nov 13, 2010 4:04 pm UTC
Forum: Science
Topic: Home Made Rail Gun
Replies: 17
Views: 5084

Re: Home Made Rail Gun

Tungsten welding rod makes a great projectile.
by Winter Man
Thu Nov 11, 2010 11:41 am UTC
Forum: Science
Topic: Nuclear Fusion
Replies: 140
Views: 18643

Re: Nuclear Fusion

Zamfir wrote:That's onyl true for tokamaks


And electrostatic confinement. And DPF. And linear-oriented magnetic confinement. Although I suppose you could weaponise DPF as some kind of particle beam weapon...
by Winter Man
Fri Nov 05, 2010 5:12 pm UTC
Forum: Science
Topic: How feasible is "living metal?"
Replies: 12
Views: 1757

Re: How feasible is "living metal?"

Read the comic Transmetropolitan. They've got these nanobots that operate in a swarm communicating wirelessly with the others closest to it. A neural network builds itself, and people upload their brains to them.
by Winter Man
Tue Nov 02, 2010 5:34 pm UTC
Forum: Serious Business
Topic: Legalising drugs?
Replies: 228
Views: 36686

Re: Legalising drugs?

Zamfir wrote:marijuana addicts


Seriously? I know they can get pretty dependant sometimes, but calling them addicts implies an actual physical addiction.

edit: dependant's probably the wrong word. More 'maaaan I could really do with a joint but it's not the end of the world if I don't get one'
by Winter Man
Mon Nov 01, 2010 8:17 pm UTC
Forum: Science
Topic: Frog levitation at home?
Replies: 6
Views: 975

Re: Frog levitation at home?

If you've got big enough magnets and a separate power supply to your neighbours, yeah, I don't see why not.
by Winter Man
Fri Oct 29, 2010 4:43 pm UTC
Forum: News & Articles
Topic: Time Traveler in Chaplin Film
Replies: 28
Views: 3235

Re: Time Traveler in Chaplin Film

You're all overlooking the fact that she may have just been barking mad and chatting to a pastry box.
by Winter Man
Sun Sep 19, 2010 12:23 pm UTC
Forum: News & Articles
Topic: Facebook banned in Pakistan
Replies: 43
Views: 7608

Re: Facebook banned in Pakistan

And I don't think this is childish at all. I think it's fair. People only learn not to hurt when they are hurt back. that is one of the most horrible things I have ever read. Violence only incites more violence, and that applies to mockery as well. Really? You wouldn't smack a child for misbehaving...
by Winter Man
Fri Aug 06, 2010 9:10 pm UTC
Forum: Science
Topic: Faster than Light Travel
Replies: 5
Views: 1600

Re: Faster than Light Travel

I wasn't on about violating general relativity. Quite the opposite. Hypothetically, if you were stuck down a nice deep gravity well, you could observe objects outside moving at a rate faster than your local speed of light. I was suggesting that the gravity of our own galaxy/solar system/whatever wou...
by Winter Man
Mon Aug 02, 2010 6:54 pm UTC
Forum: Science
Topic: Faster than Light Travel
Replies: 5
Views: 1600

Faster than Light Travel

If dark matter has mass and mainly clumps around galaxies, wouldn't the resulting effect be local time dilation? I mean, would time be relatively faster outside a galaxy than in it? If dark matter CAN somehow be interacted with, then if you could repel it, reducing the density around you, could you ...
by Winter Man
Fri Jul 30, 2010 9:10 am UTC
Forum: Science
Topic: How do you convert brain voltage into other voltages?
Replies: 14
Views: 2409

Re: How do you convert brain voltage into other voltages?

PEDANT ATTACK!

tuseroni wrote:you could fit 6.022 x 10^23 transistors in a single mole of this


You can fit 6.02x10^23 of anything into a mole of itself. That goes without saying.
by Winter Man
Tue Jul 06, 2010 2:06 pm UTC
Forum: Science
Topic: Why are there no animals that get energy from sunlight?
Replies: 36
Views: 5137

Re: Why are there no animals that get energy from sunlight?

They wouldn't have any use for limbs, a digestive system, eyes, all the other things that make them animals etc. They'd be plants.

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