Any theorys on turning the sun down to stop so called global

[brunota2003]

I've never heard of a 200 level science class?

[Ptarmigan]

The Sun is huge. Nothing you can do about it. You could put mylar over Earth. Of course all life would die. If you really wanted to stop Global Warming, you can remove all the water vapor on Earth and it will make Earth cold.

[Ed Mahmoud]

I've never heard of a 200 level science class?

Maybe it refers to "upper" (junior/senior) undergrad classes. At UT, undergrad classes before upper division were named by subject, credit hours, and a two digit number between 1 and 19.

CHEM 301 was the general freshman chemistry course.

PET 324 was, IIRC, intro to petroleum fluids. Hard class, actually. Long chain chemistry. Bubble points, phase diagrams, P/z curves, the dreaded Peng-Robinson equation of state we had to write a Fortran program to run for a ten component (including carbon dioxide and nitrogen requiring a fugacity subroutine) two phase hydrocarbon mixture.

CE 354 was my fluid dynamics class in the civil engineering department.

I think graduate level classes were numbered above 60. Now, Freshman engineering calculus was MATH 408C, the first semester, and MATH 408D, the second. The petroleum engineering department required a minimum grade of 'C' in some of the prerequisite lower division courses, in math, physics, chemistry and petroleum engineering, so a 'D', while technically passing, was a failing grade in reality.



Just a guess.



BTW, forget mylar, how about the alunimum foil, shiny side up in everyone's backyard. It would save time on mowing, as well.

[Skyhawk]

I've never heard of a 200 level science class?[/Quote]

I have.

Course numbering systems vary with school and time.

When I began my college days, my school used the following system:

100 - freshman level
200 - sophomore level
300 - junior level
400 - senior level
500 - senior/graduate electives
600 - basic graduate level
700/800 - advanced graduate level

The second digit was the number of credit hours and the third digit designated the various courses within that category. 7,8, and 9 were also used for 3 credit courses because there were no courses over 6 credits, but there were many 3 credit courses.

My basic physics sequence was physics 234, 235, and 236. The two labs that went with the sequence were physics 211 ans 212. Those were 200 level courses.

My school later switched to a four digit system to allow more course numbers.

Some schools used a system were the first digit was the number of credit hours. I believe that was the exception rather than the rule.

[brunota2003]

Ah, okay. Thanks for the explanation!

[vbhoutex]

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