Math and Science....
9/4/10 00:28![[identity profile]](https://www.dreamwidth.org/img/silk/identity/openid.png)
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One of our education system's biggest problems is that there is not enough emphasis on the Maths and Sciences.....America is falling behind in the world because our students are not gaining the necessary knowledge in these fields....
Too much emphasis on useless book learnin and abstruse theories and nto enough on PRACTICAL skills....students shoudl learn about the greatness of the Capitalist system, why Marxism is evil and Socialism doesn't work, how to invest in the stock market, balance their finances...and so on....
Arts and Humanities programs should be defunded since many teachers in those fields only fill students minds with revisionist histories and make them hate their country.....in addition,the skills learned in those fields are not as important as those of MATH and SCIENCE,which are the wave of the future....
Most academics can't even fix a doorknob....and yet they want to advocate for socialism....most of the socialists who support Obama have never ran a business....never done payroll,none of it...
Too much emphasis on useless book learnin and abstruse theories and nto enough on PRACTICAL skills....students shoudl learn about the greatness of the Capitalist system, why Marxism is evil and Socialism doesn't work, how to invest in the stock market, balance their finances...and so on....
Arts and Humanities programs should be defunded since many teachers in those fields only fill students minds with revisionist histories and make them hate their country.....in addition,the skills learned in those fields are not as important as those of MATH and SCIENCE,which are the wave of the future....
Most academics can't even fix a doorknob....and yet they want to advocate for socialism....most of the socialists who support Obama have never ran a business....never done payroll,none of it...
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Date: 9/4/10 04:35 (UTC)Now get out your copies of "The Fountainhead."
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Date: 9/4/10 04:44 (UTC)(no subject)
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Date: 9/4/10 04:46 (UTC)students shoudl learn
most of the socialists who support Obama have never ran
Ah Steve-O, how we missed ya.
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Date: 9/4/10 04:53 (UTC)I swear it's either that or you're actually some kind of bored progressive trying to play the role of an over-the-top conservative for yuks on slow nights.
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Date: 9/4/10 05:25 (UTC)(no subject)
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Date: 9/4/10 04:57 (UTC)BTW, I'm a wooly liberal librarian, and I can fix a doorknob just fine, thank you. And rewire a lamp, replace a phone jack, and all sorts of useful things. Many of them I learned by reading books.
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Date: 9/4/10 04:57 (UTC)Write a nice post for us about math and science! Show us what we've been missing!
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Date: 9/4/10 04:59 (UTC)(no subject)
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Date: 9/4/10 05:05 (UTC)(no subject)
Date: 9/4/10 05:16 (UTC)(no subject)
Date: 9/4/10 05:25 (UTC)Pure mathematics is among the least useful disciplines. Pure mathematics has no necessary relation to reality -- to anything except itself. It's nearly the definition of "book learning", or "abstruce theories".
Arts and humanities programs at least teach people how to communicate.
(no subject)
Date: 9/4/10 08:06 (UTC)A good example of that is Quaternions (more precise) versus the Heaviside/Gibbs Simplification (less precise).
Q= a + jb + kc + ld -- Where:
a, b, c, and d are real numbers, and where:
j ≠ k ≠ l And
j2 = k2 = l2 = jkl = -1
Or alternatively:
Q= (a, V)
Being that this is a four dimensional entity consisting of a scalar and a vector, the Quaternion more accurately models the reality of a four dimensional space/time. When applied to a practical problem, Maxwell's Equations:
QE= (0, E) Electric field
QB= (0, B) Magnetic field
QO= (∂/∂t, &nabla) Operator
Go through the calculations, and your results are pretty much what you'd expect:
∇ * B= 0 (No magnetic point "charges", for every "N" there must be an "S")
∇ * E= ρ (Electric charges exist)
&nabla X E= ∂B/∂t (Time varying magnetic fields give rise to electric fields)
∇ X B= J + ∂E/∂t (AC gives rise to magnetic fields)
The last one is interesting, in that it is often called Ampere's Circuital Law with Maxwell's Correction. It's that last term that Maxwell added without any mathematical justification because he realized that displacement (i.e. capacitive) currents must also contribute to the resulting magnetic field. Of course, Maxwell had to do many calculations for each direction in the 3-D coordinates, since vector math wasn't so highly developed in those days. You also won't get that result from the H-G Simplification either. However, it drops right out if you use Quaternions to attack the problem. There's no need to add a correction at all.
Rowan Hamilton understood this perfectly, however, the idgits of the mid-19th century couldn't wrap their tiny little minds around the concept of a four dimensional space/time, and that's why you probably never heard of Quaternions. When Heaviside and Gibbs proposed their simplified vector algebra, everyone heaved a big sigh of relief now that they didn't have to worry about Hamilton's Quaternions and their implication for the nature of space and time.
Mathematical exercises that at first glance appear "abstruse" -- such as the proof of Fermat's last theorem -- lead to other proofs and methods that do have practical applications.
Please.
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From:Hate to break it to you...
Date: 9/4/10 05:27 (UTC)See, if you had taken the time to learn some non-practical things in your life, you might already know that.
Re: Hate to break it to you...
Date: 9/4/10 06:15 (UTC)Re: Hate to break it to you...
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Date: 9/4/10 07:13 (UTC)Vocation over intellect. Yeah, that sounds like a plan rooted in success.
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Date: 9/4/10 15:09 (UTC)(no subject)
Date: 9/4/10 07:23 (UTC)Btw my spell-checker just went asplode.
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Date: 9/4/10 15:01 (UTC)I don't understand why the two can't be taught equally well. Personally, I was a lover of Math in HS and then changed to learning about Literature and Philosophy in college. Now I'm back to Math & Science.
I also see students graduating from college not really knowing much about either subject (M.S. or L.A.) ~sigh~
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Date: 9/4/10 09:55 (UTC)(no subject)
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From:Steve and satire?
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