Search found 74 matches

by Krikkit_Robot
Thu Dec 09, 2010 12:21 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0831: "Weather Radar"
Replies: 112
Views: 32409

Re: 0831: "Weather Radar"

Sorry if this has already been discused, didn't feel like reading all the post to see if it was

But mp3 player shuffles DO have a bias.

Ipods even have an adjustable bias where you change the probability of one artist being played multiple times in a given time
by Krikkit_Robot
Mon Sep 06, 2010 4:15 pm UTC
Forum: Science
Topic: Math Fetish: Neurologically Impossible? Implausible?
Replies: 11
Views: 5230

Re: Math Fetish: Neurologically Impossible? Implausible?

I don't know about a sexual fetish, but in my early graduate work I started to develop a maths phobia. I would have nightmares about unsolvable integrals and being impaled by tensor vectors. I would also become physically ill when working in depth in mathematics. And since I was concentrating on non...
by Krikkit_Robot
Sun Aug 15, 2010 7:57 pm UTC
Forum: Science
Topic: LED Light Bulbs, Avoiding 60 Hz
Replies: 14
Views: 4893

Re: LED Light Bulbs, Avoiding 60 Hz

depends on how good the filtering caps on the power supply are.
by Krikkit_Robot
Mon May 03, 2010 10:13 pm UTC
Forum: Science
Topic: Naturalness of homosexual behavior
Replies: 41
Views: 7527

Re: Naturalness of homosexual behavior

You probably wont be able to use this in your paper, but it is relevant. In college I dated a bisexual girl. Now, 5 years and a few bfs later, she is entirely lesbian. Why is this important, because her sister was also lesbian. That is noteworthy because their parents were a lesbian couple. Now here...
by Krikkit_Robot
Wed Apr 21, 2010 2:00 am UTC
Forum: Science
Topic: public misconceptions
Replies: 1073
Views: 151503

Re: public misconceptions

You wanna, like, add something to those url tags there? Oh, shit. Sorry. Now it works. Now I didn't read much into it but I don't see how it doesn't work to some extent. The alternator in the car produces a lot more electricity that is needed to light the plugs, charge the battery, and work the res...
by Krikkit_Robot
Wed Apr 21, 2010 1:47 am UTC
Forum: Science
Topic: Is a High School Science teacher considered a "Scientist"?
Replies: 28
Views: 3928

Re: Is a High School Science teacher considered a "Scientist

By some of these definitions most inquisitive people are 'scientist' But I guess what you are talking about is being a professional scientist. Science teachers are professional teachers Professional scientist are people who get paid to do scientific research. I wouldn't even consider applied physici...
by Krikkit_Robot
Tue Apr 06, 2010 10:34 pm UTC
Forum: Science
Topic: Could you use a tokamak to recycle nuclear waste?
Replies: 5
Views: 1029

Re: Could you use a tokamak to recycle nuclear waste?

From what I have heard , yes. With a sustained fusion reaction the plasma created could incinerate anything, breaking it down into smaller elements. As for creating sustained fusion... I imagine by the time we are ready for that advances in photovoltaic will take most of the interest and funding awa...
by Krikkit_Robot
Tue Apr 06, 2010 3:15 am UTC
Forum: Science
Topic: Why is water used in nuclear reactors?
Replies: 29
Views: 3607

Re: Why is water used in nuclear reactors?

Shivahn wrote:
Welsh Mullet wrote:I believe it is used due to it's very high energy storage capabilities. (I can't think of the correct term right now...)


Specific heat?


I think it is called 'thermal inertia.'
by Krikkit_Robot
Fri Apr 02, 2010 4:26 am UTC
Forum: Science
Topic: Liquids lighter than water and Water Rockets
Replies: 8
Views: 4190

Re: Liquids lighter than water and Water Rockets

Rockets work on conservation of momentum. You need to balance the speed and weight of your exhaust. The heavier and the faster the better. The Tsiolkovsky's rocket equations are a rather simplified model, and not entirely useful at these scales, but just looking them over will give you a general ide...
by Krikkit_Robot
Wed Mar 31, 2010 5:29 pm UTC
Forum: Science
Topic: public misconceptions
Replies: 1073
Views: 151503

Re: public misconceptions

Misconception: biologists don't need to understand advanced maths. Depends on what 'advanced' means. Differential equations? Few biologists need them. Statistics? There is Excel for that. You would be surprised. I had a friend in biology come to me with some ecology homework with some rather comple...
by Krikkit_Robot
Tue Mar 30, 2010 4:40 am UTC
Forum: Science
Topic: Depressing solutions to the Fermi Paradox
Replies: 55
Views: 6588

Re: Depressing solutions to the Fermi Paradox

Or... the universe works exactly as we perceive it. Tiny vibrating particles arranged in increasingly complex ways with increasing scales which under certain circumstances can become aware of it's own existence. And while the universe is vast the conditions necessary for this type of complexity are ...
by Krikkit_Robot
Sun Mar 28, 2010 4:24 pm UTC
Forum: Science
Topic: Sources of Inspiration
Replies: 23
Views: 2072

Re: Sources of Inspiration

I guess it was my general appreciation for nature that inspired me to pursue biology. But it was a recruitment poster for University of Washington physics hanging outside my biology 2 class after I received a low C on a test I studied forever on that inspired me to forget biology and go into physics...
by Krikkit_Robot
Fri Mar 26, 2010 11:38 pm UTC
Forum: Science
Topic: You might be a physics major if...
Replies: 540
Views: 63284

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

Link wrote:...several robots roam your house.


If you count the gang of rogue Roombas that no longer lets me use the upstairs, then...
by Krikkit_Robot
Tue Mar 23, 2010 6:41 am UTC
Forum: Coding
Topic: Quick Question (Python)
Replies: 2
Views: 661

Re: Quick Question (Python)

No, no it isn't. *embarrassed*

Thanks, got it
by Krikkit_Robot
Tue Mar 23, 2010 6:27 am UTC
Forum: Coding
Topic: Quick Question (Python)
Replies: 2
Views: 661

Quick Question (Python)

So I have several programs and I want to be able to have one program start when one finishes w/o putting them together. So I have tried this import os os.chdir('c:/b.py') os.startfile('b.py') I know the directory is correct but I am still getting WindowsError: [Error 267] The directory name is inval...
by Krikkit_Robot
Sat Mar 20, 2010 3:24 pm UTC
Forum: Science
Topic: public misconceptions
Replies: 1073
Views: 151503

Re: public misconceptions

But I thought tropical counties were 99% jungle with the few cities of people living in huts or wooden houses... And Africa is just 99% barren wasteland. Oh, and dotted oasis with two palm trees and one lake, though there's still a good chance it's only a mirage. Actually I think most of Africa's p...
by Krikkit_Robot
Thu Mar 18, 2010 10:41 pm UTC
Forum: Science
Topic: Depressing solutions to the Fermi Paradox
Replies: 55
Views: 6588

Re: Depressing solutions to the Fermi Paradox

So if the other side also posses time travel capabilities you just start a large time war, and Doctor Who could tell you all about why that is a bad idea.
by Krikkit_Robot
Tue Mar 16, 2010 11:09 pm UTC
Forum: Science
Topic: public misconceptions
Replies: 1073
Views: 151503

Re: public misconceptions

Though the public conception of a caveman is closer to some pre-homo sapiens ancestor, like a neanderthal or something, even though they were about as contemporary to the people who made the paintings in Lascaux as we are . Except shorter, stronger and hairier. But you're right, people think that t...
by Krikkit_Robot
Mon Mar 15, 2010 3:26 am UTC
Forum: Coding
Topic: Plotting Trouble (Python)
Replies: 5
Views: 957

Re: Plotting Trouble (Python)

Maybe if you rewrote adstep to look like: def adstep(): AO = N N = AO + 1 it would work. I can't recall what accessing [0] like a dict will do on an int, or exactly how python treats uninitialised variables. edit: You should really also change your if conditional in run to use N, not N[0] as well, ...
by Krikkit_Robot
Mon Mar 15, 2010 2:16 am UTC
Forum: Coding
Topic: Plotting Trouble (Python)
Replies: 5
Views: 957

Plotting Trouble (Python)

So I wrote this program so I could plot both the time series and the phase space of a damped driven oscillator(pendulum in this case) And it works quite well as long as I don't try to make it cycle through the algorithm more than 500 times. If I do I just get a stream of error messages which don't s...
by Krikkit_Robot
Wed Mar 10, 2010 5:49 pm UTC
Forum: Science
Topic: Space Travel
Replies: 26
Views: 2014

Re: Space Travel

How many flights has Ares I had? If we're counting prototypes, then we should count Falcon 1, too. The development tracks of the two projects are not directly comparable, but Falcon 1 is more or less a miniaturized Falcon 9 and is similar to Ares I-X as far as testing goes. Plus, solid rockets are ...
by Krikkit_Robot
Wed Mar 10, 2010 5:18 pm UTC
Forum: Science
Topic: Space Travel
Replies: 26
Views: 2014

Re: Space Travel

To me, NASA should be about pushing the boundaries, exploration, discovery, etc. LEO missions don't really fit into that, Exactly. And constellation was the program that was going to allow NASA to do that. Now 6 years, several billion dollars, and a whole bunch of poor decisions and bureaucratic ro...
by Krikkit_Robot
Wed Mar 10, 2010 3:07 pm UTC
Forum: Science
Topic: Space Travel
Replies: 26
Views: 2014

Re: Space Travel

I am not sure what you mean mean with "completely dependent on commercial space". When the military flies its people around in DC-10s, or when government employees fly with Delta Airlines , no one complains they are "dependent on commerical airflight". Why should that work diffe...
by Krikkit_Robot
Wed Mar 10, 2010 5:08 am UTC
Forum: Science
Topic: Space Travel
Replies: 26
Views: 2014

Re: Space Travel

That's not how the plan works. It is specifically intended for NASA to create a system that can go beyond LEO--the functional equivalent of Ares V. There's just no sense in NASA creating LEO systems that commercial enterprise can duplicate. Plus, the Falcon 9 Heavy is slated to have a greater capac...
by Krikkit_Robot
Wed Mar 10, 2010 3:24 am UTC
Forum: Science
Topic: Space Travel
Replies: 26
Views: 2014

Re: Space Travel

Constellation was under poor direction. This plan is under indirection. This is not the death of the manned space programs but it will push back any hopes of a mars mission indefinitely. And as far as I am concerned if there aren't humans involved it bores the crap out of me. I even work on science ...
by Krikkit_Robot
Sun Mar 07, 2010 6:28 pm UTC
Forum: Science
Topic: Intergalactic comunications
Replies: 93
Views: 7941

Re: Intergalactic comunications

There would be a time delay before the shadow would start moving at the receiving end, since the shadow is in transit. The shadow could move faster than c toward some far off point of the screen, but a shadow isn't an object and figuring out where the shadow ended up would still require a time dela...
by Krikkit_Robot
Sun Mar 07, 2010 5:34 am UTC
Forum: Science
Topic: Intergalactic comunications
Replies: 93
Views: 7941

Re: Intergalactic comunications

There was one method I heard a while ago about projecting a shadow on a large screen far away. The shadow/information would conceivably move faster than c because it is moving a much larger distance across the screen in the same amount of time as the object traveling across the light source. Anyone ...
by Krikkit_Robot
Sun Mar 07, 2010 5:26 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0710: "Collatz Conjecture"
Replies: 278
Views: 70849

Re: "Collatz Conjecture" Discussion

Not sure why I even bothered, but here it is anyway. It will probably make anyone with any programing experience weep, but it works def overlord(): count = [0] steps = [0] series = [] def promp(): print 'Collatz Conjecture' A = input ('Please select any positive integ...
by Krikkit_Robot
Fri Mar 05, 2010 2:03 am UTC
Forum: Science
Topic: Switching from physics to biology
Replies: 10
Views: 2186

Re: Switching from physics to biology

You need to be careful about loading your final semesters, upper level physics work can be very time consuming especially if you have to do a senior thesis. As far as medical school goes I don't know what to tell you, I made the opposite switch from bio to physics. But some of my undergraduate frien...
by Krikkit_Robot
Mon Mar 01, 2010 8:20 pm UTC
Forum: Science
Topic: public misconceptions
Replies: 1073
Views: 151503

Re: public misconceptions

Would you, if the floor of the ship were suficiently more dense than the walls and ceiling? Depends on your situation. If you were in orbit and the heavy 'floor' was facing either towards or away from the earth it wouldn't make any difference how heavy it was, you are falling at the same rate and w...
by Krikkit_Robot
Tue Feb 23, 2010 3:40 am UTC
Forum: Science
Topic: "Recent Advances" in Solid State Physics
Replies: 4
Views: 1093

Re: "Recent Advances" in Solid State Physics

http://en.wikipedia.org/wiki/Spintronics

I don't know if it worth writing about, but it is the only recent area in solid state I have any knowledge of.
by Krikkit_Robot
Thu Feb 18, 2010 1:53 am UTC
Forum: Science
Topic: public misconceptions
Replies: 1073
Views: 151503

Re: public misconceptions

I just read this story, it is a slightly more facepalming version of what someone else has already said Heavy Boots About 1983, I was in a philosophy class at the University of Wisconsin, Madison (good science/engineering school) and the teaching assistant was explaining Descartes. He was trying to ...
by Krikkit_Robot
Tue Feb 16, 2010 8:18 pm UTC
Forum: Science
Topic: Too many scientists?
Replies: 79
Views: 11703

Re: Too many scientists?

I have been thinking about this a lot lately. I recently started graduate school for physics and am seeing for the first time the lack of research positions that will be available to me if I finish out. I have seen people who I consider much more talented scientist than I end up leaving their field ...
by Krikkit_Robot
Mon Feb 15, 2010 10:19 pm UTC
Forum: Science
Topic: public misconceptions
Replies: 1073
Views: 151503

Re: public misconceptions

I was reading a youtube (where logic goes to die a painful, horrible, death) comment today where the guy said that water would not freeze unless it was exposed to air. And that the reason it takes beer longer to freeze is that there is very little air in the bottle with it. A.P.Physics teacher (who ...
by Krikkit_Robot
Sun Feb 07, 2010 10:43 pm UTC
Forum: Science
Topic: Time in transit from earth to pluto at 1.5 G Accel?
Replies: 24
Views: 3139

Re: Time in transit from earth to pluto at 1.5 G Accel?

In a straight line this is just trivial kinematics, even with time dilation, slowing time, and all that other stuff. But you do not get from planet to planet in a straight line. You basically put yourself into a elongated elliptical orbit around the sun that intercepts the orbit of the planet you a...
by Krikkit_Robot
Sun Feb 07, 2010 1:09 am UTC
Forum: Science
Topic: Time in transit from earth to pluto at 1.5 G Accel?
Replies: 24
Views: 3139

Re: Time in transit from earth to pluto at 1.5 G Accel?

In a straight line this is just trivial kinematics, even with time dilation, slowing time, and all that other stuff. But you do not get from planet to planet in a straight line. You basically put yourself into a elongated elliptical orbit around the sun that intercepts the orbit of the planet you ar...
by Krikkit_Robot
Fri Feb 05, 2010 4:33 am UTC
Forum: Science
Topic: Centripetal force question
Replies: 6
Views: 1027

Re: Centripetal force question

Force centripital = mv^2/R
by Krikkit_Robot
Thu Feb 04, 2010 5:14 am UTC
Forum: Science
Topic: Space Elevators... How far off are they?
Replies: 39
Views: 4228

Re: Space Elevators... How far off are they?

Given that we haven't built anything across the Bering Strait yet I don't see the logic there. Why would you spend billions of dollars connecting the most sparsely populated, remote, area of the US to the most sparsely populated, remote, area of the RF? Even if it were to move goods from the 'far e...
by Krikkit_Robot
Thu Feb 04, 2010 4:44 am UTC
Forum: School
Topic: Asking for a recommendation (REU)
Replies: 7
Views: 1373

Re: Asking for a recommendation (REU)

Depends on your relationship with the teacher. Out of all the LOR I have asked for only one has been in person, and that was just because I happened to be in his office at the time. But I generally ask the faculty members I work with who I don't need to be formal towards.
by Krikkit_Robot
Wed Feb 03, 2010 5:47 pm UTC
Forum: Science
Topic: the length of a day.
Replies: 14
Views: 1938

Re: the length of a day.

I performed my own experiments last summer trying to figure my own natural rhythms. Of course I could not separate myself from external stimuli. I still had the rhythms of nature, my room mates, the city, and the my 20 hours a week working for FedEx to contend with. But I settled in to a 20 hours aw...

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