Search found 238 matches

by hobbesmaster
Wed Jan 21, 2009 10:35 pm UTC
Forum: Science
Topic: Most silly "constant of nature"
Replies: 64
Views: 7651

Re: Most silly "constant of nature"

I'm gonna say the constant relating the meter to the speed of light. Because it's ridiculous to be so close to 3*10^8 meters per second but not simply be nice and round. 207,542 m/s isn't ridiculously close in my book. Especially when it means you're going to have to shuffle every other single unit...
by hobbesmaster
Tue Sep 23, 2008 6:41 pm UTC
Forum: School
Topic: Starts with D, ends with -ouble Major.
Replies: 19
Views: 2288

Re: Starts with D, ends with -ouble Major.

So I am planning on double majoring in Physics and Electrical Engineering at Carnegie Mellon. Not actually there yet so I don't know if that is feasible. Anyone know if there is enough of an overlap for me to do it in 4 years? Probably not, unless you already have a year or more worth of credits en...
by hobbesmaster
Tue Sep 23, 2008 6:34 pm UTC
Forum: Science
Topic: Superconductor confusion
Replies: 8
Views: 3011

Re: Superconductor confusion

The answer to your question is quite simple in fact. Ohm's Law doesn't apply to superconductors. Unlike Maxwell's equations, Ohm's law is not a fundamental equation of em field theory. It's just an empirical observation that happens to hold true for many conductors. In fact, even in normal conducto...
by hobbesmaster
Sat Sep 20, 2008 1:04 am UTC
Forum: Science
Topic: The Physics of ____ (school project)
Replies: 22
Views: 2269

Re: The Physics of ____ (school project)

I guess lasers are out then?
by hobbesmaster
Fri Sep 19, 2008 3:30 pm UTC
Forum: Science
Topic: Is a programming language actually a language?
Replies: 43
Views: 4740

Re: Is a programming language actually a language?

Tac-Tics wrote:Programming languages are very limited in their usage. They serve only to instruct a computer what to do.


Maintenance programmers must love you.
by hobbesmaster
Sun Sep 14, 2008 2:15 am UTC
Forum: Science
Topic: LEDs Vs. Lightbulbs
Replies: 23
Views: 2574

Re: LEDs Vs. Lightbulbs

Oh, and transporting electricity over wire is more efficient than transporting fossil fuels by, uh, fossil fuels (truck, train, etc.). Even natural gas pipes? Not sure on that one actually, lots of electricity to run those compressors... Here is an interesting chart for energy trends in the US. A l...
by hobbesmaster
Sun Sep 14, 2008 1:48 am UTC
Forum: Science
Topic: Is AC theory Physics and whyyyyyyyy????
Replies: 16
Views: 2115

Re: Is AC theory Physics and whyyyyyyyy????

Stored energy in an: Inductor: 0.5*L*i^2 Capacitor: 0.5*C*v^2 Spring: 0.5*k*x^2 Mass: 0.5*m*v^2 Isn't that cool? Anyways, stop whining about AC circuits before you actually get to AC circuits. You're doing DC transient analysis. Capacitors and inductors are actually quite simple in AC circuits, so l...
by hobbesmaster
Sun Sep 14, 2008 1:14 am UTC
Forum: Science
Topic: LEDs Vs. Lightbulbs
Replies: 23
Views: 2574

Re: LEDs Vs. Lightbulbs

One of the big problems with white LEDs is that they are actually a red, blue and green LED together in a small package. Red, blue and green LEDs put out a vary narrow spectrum of light, so a white LED is only really providing three different vary narrow colors. Here is a good website to get some id...
by hobbesmaster
Fri Aug 29, 2008 9:04 pm UTC
Forum: Hardware
Topic: Tablet comparison: Fujitsu T2010 vs. Dell Latitude XT?
Replies: 2
Views: 1426

Re: Tablet comparison: Fujitsu T2010 vs. Dell Latitude XT?

...the X61 is the cheapest tablet you listed, if you can't afford it then you can't afford the others. Lenovo should be releasing a X200 tablet very soon, so I bet the X61 will get even cheaper in the mean time (or you can always check out lenovo outlet ). The X61s have their issues, though they see...
by hobbesmaster
Fri Aug 29, 2008 8:52 pm UTC
Forum: School
Topic: Starts with D, ends with -ouble Major.
Replies: 19
Views: 2288

Re: Starts with D, ends with -ouble Major.

My friend is getting all 3 - CS, EE and CompE (in 3 years too, though he transferred in around 60 hours worth of AP credit/college classes during high school and took 2 classes each summer). Its surprisingly easy to do at most schools, I'm surprised that ABET or SACS* lets schools have three majors ...
by hobbesmaster
Tue Aug 26, 2008 9:37 pm UTC
Forum: Hardware
Topic: Several electronic questions (schematics and calculations)
Replies: 19
Views: 3199

Re: Several electronic questions (schematics and calculations)

Ah! OK, that clears up a bunch of stuff for me. I'll stick with my original theory, because I can't come up with another one, let alone a better one. (Anybody out there have any good ideas?) The only purpose I can think of for that cap is to absorb the inductive spikes that arise when current to th...
by hobbesmaster
Mon Aug 25, 2008 5:50 pm UTC
Forum: School
Topic: How important is the "where"?
Replies: 10
Views: 2182

Re: How important is the "where"?

For grad school your adviser and research matter about as much as your school (note: "better" school in the field -> more professors at the top of their field -> more money -> more research). For undergrad it mostly helps when getting jobs, but you aren't learning anything special, ABET do...
by hobbesmaster
Thu Aug 21, 2008 4:24 am UTC
Forum: School
Topic: Physics vs Engineering Physics
Replies: 8
Views: 1771

Re: Physics vs Engineering Physics

The question here is what you're going to be limited to by each discipline, and whether that matters to you. Can you go into engineering with a plain physics degree? Yes. You may be a bit better prepared for industry with an engineering physics degree. However, you're unlikely to be able to move in...
by hobbesmaster
Wed Aug 13, 2008 12:46 am UTC
Forum: School
Topic: Any insight on becoming a FBI agent?
Replies: 12
Views: 1841

Re: Any insight on becoming a FBI agent?

If you really want to be an FBI agent, get an undergrad degree in science or a language, get a law degree, and be fluent in some language. And yes, being a veteran is a great bonus. If you want to do it that way then your best bet would be to join the military in officer class: They pay for your de...
by hobbesmaster
Fri Aug 08, 2008 6:31 pm UTC
Forum: Science
Topic: Recent thread re engineers and creationism?
Replies: 76
Views: 6392

Re: Recent thread re engineers and creationism?

You want data? Let me look for the first thing I can find. Hmmm. Go to http://www.nuff.ox.ac.uk/users/gambetta/Engineers%20of%20Jihad.pdf and start reading at page 51. You will find that of all areas of academia, engineering professors are the most religious and most conservative. You will find tha...
by hobbesmaster
Fri Aug 08, 2008 1:35 am UTC
Forum: Science
Topic: Recent thread re engineers and creationism?
Replies: 76
Views: 6392

Re: Recent thread re engineers and creationism?

It isn't as simple as "expected income defines politics". Doctors, lawyers, and MBAs are also in professions that make a lot of money on average. But I don't see a strong conservative bias in any of those groups. In fact the ones that I personally know tend to be more liberal than conserv...
by hobbesmaster
Thu Aug 07, 2008 9:16 pm UTC
Forum: Science
Topic: Recent thread re engineers and creationism?
Replies: 76
Views: 6392

Re: Recent thread re engineers and creationism?

The classic stereotype that is familiar to all professors who teach engineering students is that engineers are focussed on mastering the material and getting good grades, but don't care why anything is true. The combination of focus, ability, and disinterest certainly doesn't describe all engineers...
by hobbesmaster
Thu Aug 07, 2008 2:49 am UTC
Forum: Science
Topic: Recent thread re engineers and creationism?
Replies: 76
Views: 6392

Re: Recent thread re engineers and creationism?

No. I never said they should be. I just said they can't be used as a reliable reference when discussing or arguing over matters of hard science. A lot of engineering does involve some math, and it's usually trivial - calculus, diff eq, and maybe elementary linear algebra. When I say they have a mod...
by hobbesmaster
Tue Aug 05, 2008 5:27 pm UTC
Forum: School
Topic: AP Advice
Replies: 27
Views: 2691

Re: AP Advice

English Language (note that many colleges dont give credit for this one, only English Lit) Note that my college does not give you credit for lit, only comp. (the comp exam gets you out of a... drum roll please... freshman composition requirement!) Ok. Correction. They do actually give you credit fo...
by hobbesmaster
Sun Aug 03, 2008 4:27 am UTC
Forum: School
Topic: College letters?
Replies: 16
Views: 2216

Re: College letters?

how do they get your scores? does the collegeboard (or whatever the test makers are called) just print your score on a big list and hand it out to random small colleges? When you take the PSAT, SAT or ACT theres a little bubble that says "I choose not to have my scores and demographic informat...
by hobbesmaster
Fri Aug 01, 2008 9:22 pm UTC
Forum: Science
Topic: Recent thread re engineers and creationism?
Replies: 76
Views: 6392

Re: Recent thread re engineers and creationism?

hitokiriilh wrote:This is the heart of the matter. There's no phenomenology in engineering, there's no 'fundamental' research, there's no philosophical underpinning.


Nyquist must be spinning in his grave.
by hobbesmaster
Fri Aug 01, 2008 4:43 pm UTC
Forum: Science
Topic: Recent thread re engineers and creationism?
Replies: 76
Views: 6392

Re: Recent thread re engineers and creationism?

A true scientist would have a conniption if he heard me assume that the coefficient of thermal expansion for stainless steel is constant. As would a materials engineer. Or your supervisor if you were building a space station. Abstraction and simplification is important to all scientists and enginee...
by hobbesmaster
Fri Aug 01, 2008 3:24 pm UTC
Forum: Science
Topic: Recent thread re engineers and creationism?
Replies: 76
Views: 6392

Re: Recent thread re engineers and creationism?

As a general rule though, if someone tries to use an engineer as a reference, my mind generally goes "a pseudo-scientist with a moderate command of math at best does not count as a credible source." As an engineer, I can assure you that we are in no way scientists, pseudo- or otherwise. E...
by hobbesmaster
Wed Jul 30, 2008 7:59 pm UTC
Forum: Science
Topic: Recent thread re engineers and creationism?
Replies: 76
Views: 6392

Re: Recent thread re engineers and creationism?

Knowing full well the "quality" of the creationnists paper, I didn't really want to go on. Although I was surprised the engineer was a Young Earth Creationnists. I am not surprised to see religious engineers, but creationnists, seriously? There is nothing in an engineering curriculum that...
by hobbesmaster
Wed Jul 30, 2008 4:06 am UTC
Forum: Science
Topic: Packs to teach electronics/circuits?
Replies: 2
Views: 1048

Re: Packs to teach electronics/circuits?

What do you do in labs? I would assume bread boarding basic electric circuits? (I'm assuming mechatronics is a hybrid EE/ME program, so the intro classes would be circuits I/statics and you would be taking the same labs as EEs or MEs?) Basically you should just need some resistors, capacitors, some ...
by hobbesmaster
Tue Jul 29, 2008 3:13 pm UTC
Forum: School
Topic: AP Physics Texts
Replies: 8
Views: 1580

Re: AP Physics Texts

INTERNET. You can get about 65% of your daily reccomended values of physics from fucking WIKIPEDIA ALONE . Throw away your 1300 page textbook and use an invention less than a milennia old. Good technical wikipedia articles always seem to be written by grad students or professors for upper division ...
by hobbesmaster
Tue Jul 29, 2008 4:50 am UTC
Forum: Science
Topic: Circuit Design Software - Any recommendations?
Replies: 3
Views: 1040

Re: Circuit Design Software - Any recommendations?

For simulation you want something called SPICE. This is the circuit analysis software that is used by basically everyone, and was originally written in the 60s at UC Berkley. Over the past decades many versions have been released, the project has been forked a few times and so on, but its still at t...
by hobbesmaster
Wed Jul 23, 2008 10:40 pm UTC
Forum: Science
Topic: interesting "pseudoscience" company
Replies: 15
Views: 2746

Re: interesting "pseudoscience" company

A patent officer came up with relativity. A patent officer that reviewed electromagnetic devices with a graduate degree in physics . (you are required to have a degree in a STEM field to be a patent officer in the US, I assume this is the case in most other countries and has been the case for a LON...
by hobbesmaster
Wed Jul 23, 2008 8:10 pm UTC
Forum: Science
Topic: Recent thread re engineers and creationism?
Replies: 76
Views: 6392

Re: Recent thread re engineers and creationism?

Thats an interesting article. Though, I would ascribe it more to the fact that engineering is the one technical field compatible with fundamentalism.
by hobbesmaster
Wed Jul 23, 2008 5:28 pm UTC
Forum: Science
Topic: Recent thread re engineers and creationism?
Replies: 76
Views: 6392

Re: Recent thread re engineers and creationism?

I've never seen a name to that trend, but it does make perfect sense and seems to be consistent with what I've seen in university.
by hobbesmaster
Wed Jul 23, 2008 5:08 pm UTC
Forum: Science
Topic: Can a Biologist Fix a Radio?
Replies: 32
Views: 5564

Re: Can a Biologist Fix a Radio?

Furthermore, any electrical engineering student could list the basic types of electrical components (resistor, diode, capacitor...) Interestingly, those are all basically properties of a material/assembly. A capacitor has a resistance and inductance, just as a resistor has a capacitance and inducta...
by hobbesmaster
Sun Jul 20, 2008 2:57 am UTC
Forum: Science
Topic: interesting "pseudoscience" company
Replies: 15
Views: 2746

Re: interesting "pseudoscience" company

0.0 wrote:This guy is a doctor, not a physicist,


A physicist is a real doctor. ;)
by hobbesmaster
Fri Jul 18, 2008 6:05 am UTC
Forum: Science
Topic: Chips in Space
Replies: 29
Views: 9088

Re: Chips in Space

Define "obsolete" technology. 8bit MCUs based on 8051s, z80s, HC11s and PICs are older than the 386 and are still in many embedded systems. I'm sure theres plenty of them orbiting us right now, and that there are plenty just waiting to be launched. In most cases a bunch of these things is ...
by hobbesmaster
Wed Jul 16, 2008 5:59 pm UTC
Forum: School
Topic: Good colleges for programmers?
Replies: 2
Views: 862

Re: Good colleges for programmers?

Any large state school will be adequate if you don't want to go to MIT or CIT or something along those lines. Also has the advantage of being dirt cheap, with good GPA/scores like yours you'll probably be paid to go to University of (your state here).
by hobbesmaster
Mon Jul 14, 2008 2:25 pm UTC
Forum: Science
Topic: Significant Figures
Replies: 13
Views: 1911

Re: Significant Figures

Sig figs are very important in engineering. The difference between a part diameter of 1.0" and 1.00000" could add a million dollars to the cost of manufacturing the part. (values approximate) And yet engineers seem to ignore this all the time. Freaking labeling everything with a standard ...
by hobbesmaster
Mon Jul 14, 2008 4:12 am UTC
Forum: Science
Topic: Tesla Earthquake Machine
Replies: 9
Views: 1666

Re: Tesla Earthquake Machine

Wouldn't every structure built by an engineer be BIBO stable?
by hobbesmaster
Sun Jul 13, 2008 1:06 am UTC
Forum: Science
Topic: Negative feedback in the Earth's temperature
Replies: 10
Views: 1344

Re: Negative feedback in the Earth's temperature

So... the way to fix global warming is to move the poles to the left?
by hobbesmaster
Sat Jul 12, 2008 11:22 pm UTC
Forum: Science
Topic: Redefine the metric system
Replies: 66
Views: 10032

Re: Re:

If you made the amp smaller, the volt and ohm would be even bigger, along with the weber (the farad and siemens would be smaller). Though, the amp isn't "too big" - it's too big for microelectronics, but not for, you know, power line engineering, etc. But the A looks just so lonely next t...
by hobbesmaster
Thu Jul 10, 2008 3:34 am UTC
Forum: Science
Topic: Asteroid mining and other space stuff: how useful, how soon?
Replies: 279
Views: 22901

Re: Asteroid mining and other space stuff: how useful, how soon?

We all understand the argument for sending a rover over a human, but the point still remains that a rover is limited by it's tools, which will eventually break, whereas a human can bring many tools and make observations and do things a rover can't, such as take a sample here, then walk 10 ft over a...
by hobbesmaster
Wed Jul 09, 2008 6:53 pm UTC
Forum: Science
Topic: Can a Biologist Fix a Radio?
Replies: 32
Views: 5564

Re: Can a Biologist Fix a Radio?

A computer works in ones and zeroes; there is only true or false. (pssst, theres actually 9 different types of ones and zeroes) There are? Enlighten me! There are 9 things that can be assigned as a logical bit in VHDL / Verilog in accordance with IEEE1164 . These all have different meanings impleme...

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