Search found 711 matches

by scarecrovv
Sat Sep 14, 2013 3:49 pm UTC
Forum: Hardware
Topic: Easy Way to Control LEDs, or Photoresistor vs Monitor
Replies: 2
Views: 2884

Re: Easy Way to Control LEDs, or Photoresistor vs Monitor

Could you post a schematic of your circuit? Presumably your circuit works by comparing the resistance of your photoresistor to a reference resistor, perhaps with a voltage divider and a comparator. Try adjusting the reference resistor to change the threshold of your circuit. Also, try measuring the ...
by scarecrovv
Sat Sep 14, 2013 2:39 pm UTC
Forum: The Help Desk
Topic: Secure connection International
Replies: 8
Views: 2267

Re: Secure connection International

The Data may "techncally" not leave the country What do you mean by "technically" here? 4. To satisfy the "data does not leave country" requirement I thought maybe the workstations in the middle east will access the data over a service simular to TeamViewer, where they...
by scarecrovv
Thu Sep 12, 2013 11:49 pm UTC
Forum: General
Topic: Questions For The World
Replies: 2169
Views: 357324

Re: Questions For The World

Most christmas carols I am familiar with are about snow and winter and the like. However, it was recently pointed out to me that these do not make sense for people living in the southern hemisphere, such as those in Australia. What do you do about this down under? Have any new christmas carols been ...
by scarecrovv
Wed Sep 11, 2013 3:48 am UTC
Forum: Science
Topic: Hybrid Plane/Airship
Replies: 32
Views: 3883

Re: Hybrid Plane/Airship

Lockheed Martin seems to think it's a good idea . My understanding is that they're working on a blimp-like thing that makes use of both aerodynamic lift and buoyancy. It should be faster than blimps, cheaper than planes, have a large cargo capacity, and be able to land in any sufficiently large ope...
by scarecrovv
Mon Sep 09, 2013 3:17 pm UTC
Forum: Fictional Science
Topic: Motivations of Aliens to Visit Earth
Replies: 135
Views: 31037

Re: Motivations of Aliens to Visit Earth

I haven't seen it mentioned yet, but there is the possibility that their motivation for visiting us could be purely altruistic. Maybe they simply want to help us clean up our environment, unite the world, and end all hunger and poverty. I think the Childhoods End scenario is quite feasible. 'Intell...
by scarecrovv
Fri Aug 23, 2013 2:02 pm UTC
Forum: Science
Topic: Dark Matter and Novel Forces
Replies: 4
Views: 1934

Re: Dark Matter and Novel Forces

Additionally, since you asked for people who've written about this, and I'm not a physicist, I'll point out that the webcomic Schlock Mercenary discusses this possibility (though obviously with far less scientific rigor). One of the major (and more mysterious) enemies of our heroes are the Panurii, ...
by scarecrovv
Thu Aug 22, 2013 6:45 pm UTC
Forum: News & Articles
Topic: XKeyscore: Worse than PRISM
Replies: 35
Views: 9118

Re: XKeyscore: Worse than PRISM

Lostdreams wrote:
dii wrote:well that's interesting
but what about when you go
buying groceries?


That's not a haiku.
A haiku has five syllables,
then eight, then five more.


Wikipedia,
it begs to differ with you.
Five seven and five.
by scarecrovv
Mon Aug 19, 2013 6:13 pm UTC
Forum: The Help Desk
Topic: Printing above and beyond the Lexmarx LOL[3D]
Replies: 5
Views: 2394

Re: Printing above and beyond the Lexmarx LOL[3D]

If you're a computer programmer you might like OpenSCAD . You essentially write a computer program that generates the shape you want by adding and slicing blocks of material. I don't think it's turing complete, but it can handle most practical tasks. If you really want something exotic, you can writ...
by scarecrovv
Sun Aug 11, 2013 12:12 pm UTC
Forum: Science
Topic: Moon falling
Replies: 19
Views: 6749

Re: Moon falling

In that case, the back of my envelope suggests you'd hit at 4,000mps, or about 9,000mph. That's crater material. That seems...very wrong. A quick google search lists Baumgartner's top speed as 843.6 mph (1,357.64 km/h) during his jump. I don't know much about moon physics, but I would expect a smal...
by scarecrovv
Tue Aug 06, 2013 9:28 pm UTC
Forum: General
Topic: Say you have a time machine...
Replies: 53
Views: 19077

Re: Say you have a time machine...

If I went to the past, my very appearance there would change it. Therefore, I assume that You cannot: -Change the past or the course of history means that when I go back, I create an alternate timeline, Back to the Future style, except that my time machine only returns to my unmodified present. I ca...
by scarecrovv
Thu Aug 01, 2013 12:59 pm UTC
Forum: The Help Desk
Topic: Is anyone else's YouTube skipping?
Replies: 9
Views: 9964

Re: Is anyone else's YouTube skipping?

I also experienced this problem briefly. I'm using Arch Linux (64-bit). It started at around the same time as I was experimenting with the proprietary nvidia driver and it seems to have stopped again now that I've switched back to using the nouveau driver. However, downgrading the flash plugin (poss...
by scarecrovv
Fri Jul 19, 2013 11:26 am UTC
Forum: Computer Science
Topic: Avoiding password reuse defeated by accidents
Replies: 19
Views: 9526

Re: Avoiding password reuse defeated by accidents

Indeed, if you know that the password is 100 characters long, but you have a hash for the first character, the first two characters, the first three characters, etc, then you can break it really easily by trying out every possible first character until you get it, then every possible second characte...
by scarecrovv
Sun Jul 14, 2013 7:44 pm UTC
Forum: Science
Topic: [PHYSICS] Batsuit man forever?
Replies: 12
Views: 4313

Re: [PHYSICS] Batsuit man forever?

I don't know what I'm doing, and have never jumped out of (or flown) an airplane (except in simulation) before. Take my advice at your own (large) risk. That said though... When you land an airplane, there is a maximum vertical speed at which you can touch down and avoid destroying your landing gear...
by scarecrovv
Sun Jul 14, 2013 1:56 am UTC
Forum: Science
Topic: The World but BIGGER
Replies: 27
Views: 8250

Re: The World but BIGGER

The latest photo works, and is cool!

Try studying your food before you eat it (post pictures and emotional reactions).
by scarecrovv
Sat Jul 13, 2013 4:23 pm UTC
Forum: Computer Science
Topic: Avoiding password reuse defeated by accidents
Replies: 19
Views: 9526

Avoiding password reuse defeated by accidents

It is often pointed out that reusing passwords is a bad idea . The theory is that different computers and services should have different passwords, so that if one is compromised the rest remain secure. I follow this advice, and I have a different password for each system where security matters. Beca...
by scarecrovv
Thu Jul 11, 2013 5:16 pm UTC
Forum: General
Topic: Galilean:x' with respect to S'? AND SPECIAL BONUS x' = x-d?
Replies: 908
Views: 136916

Re: Galilean:x' with respect to S'?

So, your manifold M has? 1 NO co-ordination at all The manifold M has no inherent coordinate system, correct. 2 Moves as the moved system does I'm not sure precisely what you mean by this, but I have a feeling that it's not important at this exact instant, and that Schrollini will nail this down to...
by scarecrovv
Sat Jul 06, 2013 10:48 pm UTC
Forum: Science
Topic: Fire risk from a 23W fluorescent bulb in 60W lamp?
Replies: 7
Views: 7236

Re: Fire risk from a 23W fluorescent bulb in 60W lamp?

It's very probably written by someone who doesn't know what watts are.
by scarecrovv
Sat Jul 06, 2013 10:36 pm UTC
Forum: The Help Desk
Topic: Help Setting Up Version Control
Replies: 10
Views: 4551

Re: Help Setting Up Version Control

Since you seem to be interested in not forming bad habits, Hg is the correct way of shortening Mercurial, not Mg (which would be Magnesiumal). Also, the only version control system that I both know well and would recommend is Git*. Here are some resources for learning about Git, if that's what you c...
by scarecrovv
Sat Jul 06, 2013 1:48 pm UTC
Forum: Coding
Topic: A left-to-right syntax programming language?
Replies: 16
Views: 8070

Re: A left-to-right syntax programming language?

Haskell doesn't have such an operator built in. You'd usually write things in the opposite direction using $, (or using concatenation in point-free style). You could define |> in Haskell with: (|>) = flip ($) Haskell does have a left-to-right operator for monadic bind, though (>=). Bind is actually...
by scarecrovv
Fri Jun 28, 2013 8:47 pm UTC
Forum: Science
Topic: So why can't we bulk produce space probes?
Replies: 25
Views: 8513

Re: So why can't we bulk produce space probes?

While mass production of the probes themselves may work to reduce costs significantly, launch costs are high, and cannot be reduced by more than a factor of 10 (being super-optimistic) without a huge infrastructural investment. So either we still have to build a rocket for every one of 100 probes (w...
by scarecrovv
Wed Jun 26, 2013 11:27 pm UTC
Forum: Science
Topic: Global Warming to 11?
Replies: 32
Views: 7066

Re: Global Warming to 11?

I'm assuming that current scientists have concluded that a big asteroid hitting the Earth would cause global cooling. Is that right? Now there's a hell of an idea. Pick a patch of desert that nobody cares about (I'd go for ocean, but I'd be worried about tsunamis), and smack an asteroid into it eve...
by scarecrovv
Wed Jun 26, 2013 11:49 am UTC
Forum: The Help Desk
Topic: gnome-terminal replacement with transparency
Replies: 5
Views: 4297

Re: gnome-terminal replacement with transparency

It seems unlikely that gnome-terminal would drop this feature. Check your graphics driver to make sure you've got a good one for whatever card you have, and check your window manager to be sure compositing is enabled.
by scarecrovv
Wed Jun 26, 2013 4:23 am UTC
Forum: Fictional Science
Topic: Living Undeground
Replies: 16
Views: 5972

Re: Living Underground

If some fungus is bioluminescent and farmable I don't see any reason to need fuel at all. I don't know where you come from, but here in the north, it's fucking cold in the winter. Even if the effect of being underground evens out the temperature enough that the minimum isn't too cold, it would stil...
by scarecrovv
Thu Jun 06, 2013 7:25 pm UTC
Forum: Coding
Topic: Finding Lat/Lon on a 3D Globe
Replies: 4
Views: 2691

Re: Finding Lat/Lon on a 3D Globe

Is this an orthographic or perspective projection?

http://en.wikipedia.org/wiki/3D_projection

It makes a difference. Orthographic would be easier. I think you might have a perspective projection, but it's hard to be sure from just the picture.
by scarecrovv
Thu Jun 06, 2013 6:44 pm UTC
Forum: Hardware
Topic: I AM SADNESS!!!
Replies: 6
Views: 4398

Re: I AM SADNESS!!!

Oops! I think I accidentally shorted +5 and ground on my raspberry pi once, but I got lucky and there didn't seem to be any damage. Better luck next time.
by scarecrovv
Mon Jun 03, 2013 8:08 pm UTC
Forum: Hardware
Topic: I AM SADNESS!!!
Replies: 6
Views: 4398

Re: I AM SADNESS!!!

:cry:

I too am curious. How did you brick it? If you tell us more, perhaps we can help, or at least I might be able to avoid your mistake.

In any case, you have my sympathy.
by scarecrovv
Mon May 27, 2013 4:46 pm UTC
Forum: News & Articles
Topic: In the US, criminals will be intentionally starved to death
Replies: 39
Views: 11468

Re: In the US, criminals will be intentionally starved to de

basically tell them that if they don't start to steal and murder again, they are going to starve I mean, it's not like they can work for a living of something. They either have to rob someone themselves, or have the government do it for them. It's shit like this that almost makes me sympathize with...
by scarecrovv
Fri May 24, 2013 4:36 pm UTC
Forum: General
Topic: The Worst Superpower
Replies: 142
Views: 30045

Re: The Worst Superpower

the ability to hear every thought. ... [ spoiler]For some portion of the population this Horrible Super Power is in place. Yep. I have heard. Some people live with this. They say it is like being in a public space where people talk. They say that, sometimes, the words and the thoughts don't match. ...
by scarecrovv
Mon May 20, 2013 8:49 pm UTC
Forum: Fictional Science
Topic: "Zombie" Apocalypse
Replies: 61
Views: 24764

Re: "Zombie" Apocalypse

ThirdParty: That's the most awesome thing I've read on the fora in a long time. You're amazing.
by scarecrovv
Mon May 20, 2013 8:34 pm UTC
Forum: Science
Topic: Why did our helium balloon get new life?
Replies: 6
Views: 4995

Re: Why did our helium balloon get new life?

That's pretty cool! I wish you had a video of it. I think you're probably right. Every time you hit it, you increased the temperature of the gas, which increased the volume, which reduced the density, which increased the buoyancy.
by scarecrovv
Sat May 18, 2013 2:53 am UTC
Forum: Computer Science
Topic: A simple encryption cipher... Thoughts?
Replies: 22
Views: 33240

Re: A simple encryption cipher... Thoughts?

It is a "compressor function" in the cryptographic sense of n bits in and m bits out where n>m (m=2n). It has nothing to do with data compression (and you don't want to use plaintext as an encryption key. There is a famous bit of ciphertext that is said to tell the location of a gold mine...
by scarecrovv
Fri May 10, 2013 6:24 am UTC
Forum: Science
Topic: Orbital Maglev Vactrain
Replies: 28
Views: 4212

Re: Orbital Maglev Vactrain

There's no reason it couldn't be made to work in theory, but there are some practical problems with building an evacuated tunnel thousands of kilometers long. It would have to be very precisely shaped, leaving very little flexibility for choosing the terrain over (or under) which you build the tunne...
by scarecrovv
Wed May 08, 2013 12:44 am UTC
Forum: General
Topic: The Worst Superpower
Replies: 142
Views: 30045

Re: The Worst Superpower

by scarecrovv
Tue May 07, 2013 1:50 pm UTC
Forum: Fictional Science
Topic: "Zombie" Apocalypse
Replies: 61
Views: 24764

Re: "Zombie" Apocalypse

28 Days Later is also set up like this. A virus escapes from a lab where they were studying it, and makes people go nuts and start eating eachother. However, it's sort of implied that the infection might have been limited to the British Isles, so there probably wasn't a serious risk of human...
by scarecrovv
Fri May 03, 2013 2:29 am UTC
Forum: Science
Topic: Evolution question - how does complexity arise?
Replies: 201
Views: 23752

Re: Evolution question - how does complexity arise?

If I cannot find answers to these objections, then of course I will accept evolution. I hope you will understand, however, if I delay a little bit - I'm not ready to make such an important judgment solely on the basis of a brief internet conversation, so I am going to respectfully withdraw from thi...
by scarecrovv
Thu May 02, 2013 8:18 pm UTC
Forum: Science
Topic: Evolution question - how does complexity arise?
Replies: 201
Views: 23752

Re: Evolution question - how does complexity arise?

I've reordered the chunks of your post a bit, to aid the flow of my response. I trust you won't mind. Defining complexity is tricky, but I propose Francis Heylighen's definition: "Intuitively then, a system would be more complex if more parts could be distinguished, and if more connections bet...
by scarecrovv
Tue Apr 30, 2013 2:26 pm UTC
Forum: General
Topic: The Worst Superpower
Replies: 142
Views: 30045

Re: The Worst Superpower

I stick by 'immortality' being the worst curse, especially if you're kept sane throughout it. I think it would be worse if there isn't a Perpetual Youth/Beauty/Health/Regen Power combo mixed in there as well. Think of Mordred from the end of the Justice League episode 'Kid Stuff'. You wouldn't nece...
by scarecrovv
Tue Apr 30, 2013 5:05 am UTC
Forum: Religious Wars
Topic: User Intefaces
Replies: 8
Views: 7999

Re: User Intefaces

I have tremendous respect for well designed keyboard interfaces: vim, xmonad, and pentadactyl are my three favorite pieces of software. In addition to having dozens of physical buttons literally at your fignertips, they lend themselves wonderfully to customization and scripting. I also love clit mic...
by scarecrovv
Sat Apr 27, 2013 3:24 am UTC
Forum: Science
Topic: Could we launch a probe at a star to get a better look?
Replies: 10
Views: 1764

Re: Could we launch a probe at a star to get a better look?

Does the relative speed of the beam vs. the craft really have to be 0.1c, though? I mean, you need a maximum of at least 0.1c to catch up with the craft at "cruising speed"; when the beam is at 0.1c, and the craft is at 0.09c, the relative velocity of the "wind" is just 0.01c. C...
by scarecrovv
Fri Apr 26, 2013 8:44 pm UTC
Forum: Science
Topic: Could we launch a probe at a star to get a better look?
Replies: 10
Views: 1764

Re: Could we launch a probe at a star to get a better look?

the result would be NASA owning the most powerful weapon ever built. I think I'd be ok with that. NASA: Please fund the mission to Europa. Congress: No. NASA: Fund the fucking mission or we'll use the orbital laser cannon to carve dicks into the roofs of your houses. Don't think we won't either. Lo...

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