/sci/ - Science & Math

How is it that a C is considered passing in STEM courses? The grading scale for most classes I've taken have a C at 70-80%. This means you have a grasp of ~75% of the information. Would you hire an electrical engineer to design the power grid for a city who only understands 75% of electrical concepts? How about someone to work in your nuclear power plant, who might cause serious damage because he only truly comprehended 75% of nuclear engineering? How can you pass Calculus only understanding 3/4 of the algebraic prerequisites, or differentials only firmly grasping 3/4 of Calc 1?

A B is fine, if it's due to a minor misunderstanding that you went back through and corrected, or a course you aren't going to use (Biochem if you're a materials scientist, for example,) but otherwise I don't see how anything other than an A in a STEM course signifies that you have enough of a grasp of that skill set to use it in a career.

>>4075477
It can support liquid water and a lower energy ecology then we have on earth. Getting the atmospheric pressure to 1 bar is hardly necessary, when .25 bar would be quite enough to support life as we know it.

>>4075434
Fuck, how many times do people have to say "hit Mars with ammonia and ice Kuiper belt objects" before you understand where nitrogen and oxygen are going to come from? There is enough out there to MAKE A WHOLE NEW PLANET so it's not like they are going to run out.

>>4073191

The sun would be working constantly to erode the atmosphere. It's doing so right now. The effect would be the same as a person coming and taking one stone a day from a wall you were trying to build. Eventually, in a long time, he's going to take the whole wall or make it tiny. But if you build the wall with thousands of stones on the first day, then repair it with fifty stones a month you will stay well ahead.

( 2s^-2 + s^-1 ) / ( 1 + 5s^-1 + 6s^-2 )
can someone tell me that how do I get the characteristic equation of this? I can not find the proper laplace transforms.

pic: unrelated