Math and Science Explanations

Learn about math and science. Want to learn about a science topic? Look it up in this blog or ask about it Add /math at the end of the url for math explanations, and /science for science explanations. You may also search the tag 'navigation'.

[profeminist]

Source

Want more info? Here ya go: 

This Biology Teacher Disproved Transphobia With Science 

ALSO:

Sex redefined

“The idea of two sexes is simplistic. Biologists now think there is a wider spectrum than that.”

More on anti-trans arguments as bad science

[the-awkward-turt]

As a biologist I am reblogging this so hard.

Biological sex is not and has never been a binary. The complexity of the natural world cannot be contained in neat little societal boxes. Stop using science to justify your bigotry.

[calystarose]

The complexity of the natural world cannot be contained in neat little societal boxes. Stop using science to justify your bigotry.

[asapscience]

A quick guide to temperature. [Via Reddit]

[mathsciexplanations]

Introduction to Combinatorics

mathsciexplanations.tumblr.com

Combinatorics - the fancy word for the math of figuring out the number of different possibilities, based on the grouping and order if choosing of a set of objects

Example: 

Function 1- Permute Permutation is finding the number of groups in a set, but when order matters (For example, if there is a set of A,B,C,D,E, ABC is counted different from BAC due to arrangement) How do we get permutations?

Before we continue, let's learn a new function-- factorial

 So, the number of ways you can arrange N objects is N! But, what if you wanted to find the number of arranged groups of P, in a larger set of N? Let's take arranged groups of 2 (AB is counted as different from BA), from a set of 5 as an example.

 Therefore, for the number of arranged groups of P in a set of N objects, you must use N! until you have multiplied P numbers. Therefore, Permute(N,P) [nPp]=                       N!/(N-P)!

What if you want to count the number of different groups in a set, such that arrangement doesn't matter?

Function 2- Unordered Combination ("choose")

So the function for an unordered combination would be (given a group of p for a set of n): n!/(n-p)!(n!)

[mathsciexplanations]

Navigation

Due to the some technical difficulties, this will be a post meant solely for navigation around the blog. 

Math Explanations will take you to a page directing you to all math related things

Science Explanations will take you to a page directing you to all science related things

You may also search the following links to see all posts for either category

Math

Science

Certain forms of explanation include:

Diagrams

Notes

[mathsciexplanations]

@captainswan618. Information on psychrometers!

[mathsciexplanations]

For @jesperfaehey, and anyone else confused about things concerning mid-latitude lows. More diagrams might be posted. Ask away for any other information!

[mathsciexplanations]

Ask is now open!

This is an ask blog to well, as the name suggests, explain math and science concepts. Need help on material? Just want to learn a cool new concept? Ask away!