Recent content by Solid Snake

Hi all. I'm planning on moving out of my parents home a few years from now (never too early to plan), and I want to eventually settle in a place that is as safe as possible and future-proof from natural disasters (and climate change) as much as possible. Upstate New York seems like a good place...

Hey everyone. Just a basic question out of curiosity. How effective are UV films for windows for blocking UV rays? Every window film I see says it blocks 99% of UV rays. I just put them in my house, and honestly, I find it hard to believe that it is blocking 99% of UV rays (that being rays from...

So just to make sure I understand you well, can I understand a tuple to be a list of data where each element is related to each other and ordered in that each index holds a value representing a specific thing? Thank you so much for your reply.

Ok, so I read that a tuple is an ordered list of n elements, where n is a non-negative integer. Sometimes I get confused with tuples and partially ordered sets. So if I organized a list of all the airplanes in a particular airport, would that be a tuple, or would that be a set? I'm leaning...

Canada sounds like the winner. Although now I learn that human caused climate change may deplete our oxygen, meaning there is no safe place anywhere... https://www.sciencedaily.com/releases/2015/12/151201094120.htm

Wouldn't Canada be a death zone once Yellowstone's Supervolcano erupts? And the thought of those nice Canadians can strike death into anyone. May the lord help us all!

Not to troll by reviving an old thread, but I'm becoming convinced that Europe (in particular the North) is safe from nasty natural disasters. From all I read, I'm leaning towards England winning this contest. Ireland may block any tsunami from the Atlantic but London appears just fine, and it...

Thank you. But what about vectors. How in god's good name do matrices get tied up with vectors and geometry? I now understand that it is used to solve linear systems, but how is it used in vectors? If someone could explain this and more in simple layman's terms, that would be great! Thanks.

Ok so officially a matrix is a rectangular array of numbers, symbols, etc arranged in rows and columns that is treated in certain prescribed ways. But that doesn't help me understand a darn thing. From what I understand, a matrix is a math tool that can help you solve linear systems, represent...

Thanks for the responses. I am still personally begging to know how one comes up with a production function for a firm given labor and capital as inputs. Again, the microeconomic textbooks do give good practice problems, but they already give you the function in the problem. I want to practice...

Ok. I'm now studying economics and applied math, and I'm currently wanting to know what book or online resource could help me in learning how to model real life situations into functions. Most math and econ textbooks are garbage at this. I'll be more specific. In my study of Microeconomics...

Ok. I don't understand sets within sets. No one has been able to explain it to me simply. So you can have sets inside of sets. That I get. But what happens when you get to something tricky like the empty set? For example, I know that ø ε {ø} is true. I don't understand how. How do I read...

First, sorry if this is in the wrong section. This could span many subjects. I was pondering on how reliable statistics in science are. My mother's best friend just had a baby naturally at 45 years old. I also know 3 other women who have had babies naturally after 40 (specifically 2 of them at...

How dangerous are Zinc Oxide nano-particles to the skin? I'm sorry ahead of time if this is the wrong place to put this. I'm just curious if anyone here knows if nano-particles of zinc oxide sunscreen actually harms the skin? Would it speed up photoaging (considering that it is effective in...

Homework Statement Suggest a substitution/transformation that will simplify the following integral and find their jacobians: \int\int_{R}x\sin(6x+7y)-3y\sin(6x+7y)dA Homework Equations [ tex ] \int\int_{R}x\sin(6x+7y)-3y\sin(6x+7y)dA [ / tex ] The Attempt at a Solution This topic is...