Search found 226 matches

by ks_physicist
Sun Dec 02, 2007 8:13 pm UTC
Forum: Mathematics
Topic: Calculus Final Exam; Applied Calc
Replies: 21
Views: 3180

Re: Calculus Final Exam; Applied Calc

The other day when I was at the store, I was buying some bottled water when I noticed some "eco-friendly" bottled water when the bottle was designed a bit differently to lower the amount of plastic used in it's design by 30%. Since its a solid of revolution, they had to keep the volume of...
by ks_physicist
Sun Dec 02, 2007 8:10 pm UTC
Forum: Mathematics
Topic: TI-Nspire
Replies: 51
Views: 8797

Re: TI-Nspire

More likely to buy a Voyage 200 to go along with my 89 and my 85.

I love my 85 sooooo much. It's been through a lot with me.
by ks_physicist
Sun Dec 02, 2007 8:03 pm UTC
Forum: Mathematics
Topic: Favorite math software (Numerical, graphical, or CAS)
Replies: 21
Views: 2905

Favorite math software (Numerical, graphical, or CAS)

After answering the poll, maybe comment on what you use the software for. For example, I'm a physics teacher, and have a master's in physics. I learned on MATLAB, but have some experience in Mathematica, Maple, and Mathcad. I'm now working on using free alternatives, since I can't expect my school t...
by ks_physicist
Sun Dec 02, 2007 7:28 pm UTC
Forum: General
Topic: How do we know you have a face unless you post it?
Replies: 20910
Views: 3072794

Re: Back to post yo' face

I'm going to have to bug my friend to join the forums here. He's 29, a physicist, and in a small town where [intelligent + beautiful] women are rare. Does not seem to be a problem here!
by ks_physicist
Sat Nov 24, 2007 1:45 pm UTC
Forum: Your art and links
Topic: A Weird Textbook of Mine.
Replies: 11
Views: 3535

Re: A Weird Textbook of Mine.

And what is the title and author of this unusual textbook?
by ks_physicist
Sat Nov 24, 2007 1:38 pm UTC
Forum: Music
Topic: What instrument do you own?
Replies: 172
Views: 30683

Re: What instrument do you own?

An older tenor banjo,
A student violin,
An Epiphone acoustic guitar,
A Godin SDxt electric guitar,
A Hohner harmonica.


Despite my posession of these instruments, I have yet to develop any discernible musical talent. :cry:

Maybe once I find time to take lessons and practice...
by ks_physicist
Wed Nov 21, 2007 5:28 pm UTC
Forum: Hardware
Topic: First, or most memorable, encounter with the magic smoke.
Replies: 137
Views: 19060

Re: First, or most memorable, encounter with the magic smoke.

I have noticed that the failure modes of LEDs differ by type. Are you sure he /reverse/ biased it at 12v? As I recall, driving an LED normally at higher voltage will usually result in a color change, and green usually went to yellow and then brown (as the plastic case oxidized). Years of having acce...
by ks_physicist
Wed Nov 21, 2007 5:06 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0347: "Brick Archway"
Replies: 100
Views: 22195

Re: "Brick Archway" Discussion

You children who grew up on a diet of 83s and 86s should bow to your elders, those of us who learned on 81s and saved up for 85s. And, yes, my 85 is still in use. Right next to my 89. ETA: Waiting for comment from the guys who played Breakout by drawing on paper and calculating trajectories with a s...
by ks_physicist
Sun Nov 18, 2007 7:28 pm UTC
Forum: Mathematics
Topic: How do you end your proofs? QED, box, ...
Replies: 107
Views: 21842

Re: How do you end your proofs? QED, box, ...

Then of course, sometimes in past homework, I'll have proofs that are pretty much copies of a previous proof to where I can give the one-liner proof: "Mutatis Mutandis." My graduate advisor introduced me to Mutatis Mutandis, and I have loved it ever since. I had reason to use it several t...
by ks_physicist
Tue Nov 13, 2007 3:51 am UTC
Forum: Mathematics
Topic: How do you end your proofs? QED, box, ...
Replies: 107
Views: 21842

Re: How do you end your proofs? QED, box, ...

What, "quod erat demonstratum" doesn't mean "Look, a filled-in box"?! XD I'm seriously tempted to go the lolcat route and go "kthxbai" after proofs (and starting proofs with "I can has <proof method here>," since my current class has instructions like "P...
by ks_physicist
Wed Nov 07, 2007 8:03 am UTC
Forum: Mathematics
Topic: How do you end your proofs? QED, box, ...
Replies: 107
Views: 21842

Re: How do you end your proofs? QED, box, ...

I am tagging this purely for future reference.
by ks_physicist
Wed Nov 07, 2007 8:00 am UTC
Forum: Mathematics
Topic: IB extended essay
Replies: 7
Views: 3509

Re: IB extended essay

Good luck on your paper! I didn't go full IB, they wouldn't let me take both bio and physics higher level if I went full, so I just did a certificate (HL physics, biology, SL calc, German) and AP English. I remember the diploma candidates agonizing over their 5 kiloword extended essays (is it still ...
by ks_physicist
Wed Nov 07, 2007 7:52 am UTC
Forum: Mathematics
Topic: Del in polar coordinates
Replies: 18
Views: 3580

Re: Del in polar coordinates

Fascinating that there are so many variations on how to pronounce a partial differential.

I've always said "partial of y with respect to x" or "partial y with respect to x".

I don't know that I was ever taught that way, but I might have picked it up somewhere.
by ks_physicist
Tue Oct 30, 2007 4:35 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0332: "Gyroscopes"
Replies: 107
Views: 26224

Re: "Gyroscopes" Discussion

Aha. Probably thinking of the engineer Eric Laithwaite, who delivered the Royal Institution Christmas Lecture in London (1974-1975).

Google for video...
by ks_physicist
Tue Oct 30, 2007 2:14 am UTC
Forum: General
Topic: Quitting a job you hate: How?
Replies: 39
Views: 3558

Re: Quitting a job you hate: How?

Monday, October 29, 2007 Emma Ployee 321 Anyplace Ave. City, ST, 00000 Bossy McBoss 123 Anywhere St. City, ST, 00000 cc: Human Resources Dear Mrs. McBoss, This letter communicates my resignation effective immediately* from my position at Wombat Widgets Incorporated. Sincerely, Emma Ployee * Read yo...
by ks_physicist
Mon Oct 22, 2007 3:38 am UTC
Forum: News & Articles
Topic: FSM at Missouri State University
Replies: 14
Views: 2120

Re: FSM at Missouri State University

Ok seriously WTF... I asked who lived around me and nobody answered. Who lives near Springfield?!?! Show yourself! Compared to some of the members here who live in that large state known as "Foreign" (abbreviation FN), I live "near you". In fact, I drove sort of by there today o...
by ks_physicist
Wed Oct 17, 2007 12:47 am UTC
Forum: School
Topic: Teachers that cannot teach
Replies: 473
Views: 69908

Re: Teachers that cannot teach

Citizen K wrote:I am reminded of a comment I heard once regarding the education department at college.

Those who can do, do.
Those who cannot do, teach.
Those who cannot teach, teach teachers.


And those who cannot teach teachers administrate teacher teachers.
by ks_physicist
Tue Oct 16, 2007 9:20 am UTC
Forum: General
Topic: Horrible Deaths of Famous Mathematicians
Replies: 34
Views: 4584

Re: Horrible Deaths of Famous Mathematicians

Tagged to add the deaths from Statistical Mechanics...
by ks_physicist
Tue Oct 16, 2007 9:17 am UTC
Forum: School
Topic: Teachers that cannot teach
Replies: 473
Views: 69908

Re: Teachers that cannot teach

It is "Teachers who cannot teach", not "...that cannot teach."
by ks_physicist
Tue Oct 16, 2007 9:15 am UTC
Forum: Hardware
Topic: Clock speed reached local maxima?
Replies: 46
Views: 9966

Re: Clock speed reached local maxima?

I knew something was fishy when I bought a higher performance computer with a slower processor.

My wife's 2+ year old Dell has a 3 GHz Pentium-D dual core processor. My (faster) Toshiba laptop has a 1.73 ghz Core 2 Duo processor. My laptop smokes her desktop.
by ks_physicist
Tue Oct 16, 2007 9:13 am UTC
Forum: Hardware
Topic: First, or most memorable, encounter with the magic smoke.
Replies: 137
Views: 19060

Re: First, or most memorable, encounter with the magic smoke.

When I was about six or seven, and I "wired up" a bunch of electronic components on a board. An actual board. I asked Mom if I could plug it in to see what happened. She said yes, but I had to be very careful. (Bless her...) So I put it on the floor by the fireplace, got behind the couch, ...
by ks_physicist
Tue Oct 16, 2007 9:06 am UTC
Forum: School
Topic: Teachers that CAN teach!
Replies: 69
Views: 8552

Re: Teachers that CAN teach!

I'm trying to decide whether to requisition the (relatively expensive) 'clickers' for my classroom. On the one hand, I know I will be dooming myself to forever tracking the damn things down. On the other hand, it would be nice to have the feedback, so I don't have to interpret the faces ("does ...
by ks_physicist
Tue Oct 16, 2007 9:04 am UTC
Forum: General
Topic: Getting ideas in awkward places
Replies: 36
Views: 2783

Re: Getting ideas in awkward places

What, like the back of a Volkswagen?
by ks_physicist
Sun Oct 14, 2007 5:54 am UTC
Forum: News & Articles
Topic: FSM at Missouri State University
Replies: 14
Views: 2120

Re: FSM at Missouri State University

podbaydoor wrote:We had a bunch of MU believers marching around a few weeks back on the Mizzou campus during Evangelical Week, getting into the faces of the local street preacher organization, reading from H2G2 while in full pirate regalia. :D


It is stories like this that make me nostalgic for college.
by ks_physicist
Tue Oct 09, 2007 1:36 am UTC
Forum: Mathematics
Topic: Passionate about a calculator?
Replies: 139
Views: 24494

Re: Passionate about a calculator?

By the way, where does one find a belt holster for a TI-89?

Or is that sort of thing only sold on engineering school campuses? :lol:
by ks_physicist
Sun Oct 07, 2007 3:57 pm UTC
Forum: General
Topic: [SAFESPACE] Woman Thread - All Things Women. Period.
Replies: 27389
Views: 3527309

Re: Girl Thread: Under the Ovarypass

Race is a social construction, not a biological fact, end of story. Hmm. When I took forensic anthropology, we learned how to determine all kinds of information from a person's bones, including sex, age, height, birth record (for females), certain class markers based on probable occupation, and las...
by ks_physicist
Fri Oct 05, 2007 5:50 am UTC
Forum: Mathematics
Topic: About how math is taught. (Or: People who "can't do mat
Replies: 138
Views: 23224

Re: About how math is taught. (Or: People who "can't do mat

Regarding only upper-level teachers being "exciting", look at the students they generally have. Motivated, interested and interesting students. Look at the freshman students--generally forced to be in the class, study skills appropriate for a 3rd grader, weaseling skills appropriate for a ...
by ks_physicist
Tue Oct 02, 2007 2:29 am UTC
Forum: Computer Science
Topic: Computer Science in High School
Replies: 78
Views: 12733

Re: Computer Science in High School

My high school (Stuyvesant HS, NYC) offers the following: One mandatory semester Intro to CompSci (Netlogo, Scheme, Python) Introduction to computer programming (Python) AP CS (Java) System Level Programming (C, Unix, other stuff that I have yet to find out because I'm taking the class now) Compute...
by ks_physicist
Tue Oct 02, 2007 2:25 am UTC
Forum: General
Topic: XKCD EMP Cannon - [Expert required; apply inside]
Replies: 87
Views: 9177

Re: XKCD EMP Cannon

I have plans for a car based device that will shut down and permanently destroy any car behind it. I can't legally post plans for it though, All I will say is I am planning 12 car batteries worth of power dedicated to it. It is most likely completely infeasible and pointless, but a boy can dream. U...
by ks_physicist
Tue Oct 02, 2007 2:24 am UTC
Forum: General
Topic: XKCD EMP Cannon - [Expert required; apply inside]
Replies: 87
Views: 9177

Re: XKCD EMP Cannon

I am in, and if we build it in a well shielded laboratory we don't need any FCC anything.

So, who has a mineshaft we can use? Or, batcave?
by ks_physicist
Tue Oct 02, 2007 2:21 am UTC
Forum: General
Topic: Worst songs to get stuck in your head
Replies: 96
Views: 6931

Re: Worst songs to get stuck in your head

I am mainly tagging this thread so that, when I need a good sticky song to put in my head for a few hours distraction, I know where to look.

Oh, and "Banana phone". Google it.
by ks_physicist
Tue Sep 25, 2007 10:01 am UTC
Forum: School
Topic: What degree have/are/will you studied/studying/study.
Replies: 273
Views: 30749

Clerria: do you know where you want to study and whom you want to study under? If the GPA doesn't shine (mine doesn't shine much, at a hair under a 3.0) then try to make the other aspects of your application shine. GRE score, personal statement, letters of rec. And if the school "doesn't accept...
by ks_physicist
Sat Sep 22, 2007 8:07 am UTC
Forum: General
Topic: Aspergers/Giftedness - is there a link?
Replies: 101
Views: 10564

Oh shit, I'm not autistic. :cry: That's ok, there's a whole spectrum of mental retardation for you to choose from. Other people frequently tell me that what I've said is impolite, even though I think it is polite. ⋅ Definitely agree ⋅ Slightly agree ⋅ Slightly disagree...
by ks_physicist
Sat Sep 22, 2007 3:45 am UTC
Forum: General
Topic: Regarding laptop encasement.
Replies: 30
Views: 3920

I had the same serious problem when I purchased my new notebook, a 15.4" Toshiba. It woudln't fit the bag I had for my old 12.1" notebook. I ended up going with an American Tourister bag. I added a little strip of extra foam padding at the bottom of the laptop compartment, just for my own ...
by ks_physicist
Sat Sep 22, 2007 3:21 am UTC
Forum: General
Topic: Aspergers/Giftedness - is there a link?
Replies: 101
Views: 10564

No known ASD in me or my brother. Both of us tested at well into the "exceptionally gifted" range. Not profoundly though. Damned overachievers. My test was with a psychologist in a one-on-one setting. As I recall, there were at least two 'types' of testing, one in a more traditional format...
by ks_physicist
Fri Sep 14, 2007 4:09 am UTC
Forum: News & Articles
Topic: Student suspended for drawing gun
Replies: 49
Views: 7853

Hey, guess what, my freshmen just got to the point in Paul Hewitt's "Conceptual Physical Science Explorations" textbook where he has the traditional "pellet fired into a spiraling tube" thought problem. The pellet is being fired by a gun. I told my students that they should draw ...
by ks_physicist
Tue Sep 11, 2007 3:41 am UTC
Forum: Food
Topic: The Xkcd Cookbook (with an unfinished index in the OP)
Replies: 686
Views: 282153

Well if you're going for REALLY simple dishes, I used to brown some hamburger, drain, and then add Velveeta cheese (and sometimes other cheeses if they were in the fridge). If the browned hamburger didn't retain enough heat to melt the cheese, I'd microwave it for fifteen second intervals until the ...
by ks_physicist
Sun Sep 09, 2007 9:51 am UTC
Forum: Science
Topic: Bizarre facts
Replies: 234
Views: 45548

Humans, dolphins, and bonobos are the only animals that engage in sex when reproduction is not possible, if you tack on several huge qualifications (excluding homosexual sex and the use of sex as a means to another end, such as tricking a male into believing the offspring are his ). In my opinion, ...
by ks_physicist
Sat Sep 08, 2007 6:38 am UTC
Forum: News & Articles
Topic: Student suspended for drawing gun
Replies: 49
Views: 7853

MJ, if it was Hallowe'en, then I think the school was right to have let them off early. I seized a note early last year where two students were drawing themselves (crudely, but handily labeled with names) shooting me in the head. I stuck it in a drawer...just in case...but otherwise admonished them...

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