Comments

Thank you! I picked it up at a lecture I attended on the subject at a local university.

Thank you!!

ummmmm ywp might be one of the only ones or at least its the best one :D but yeah other than that i cant think of any teen-friendly ones

wow congratulations thats amazing!!!!!!!

this is such a pretty analogy!

I love the fracking comparison.

Lol, its okay.

Thank you!!

This is so cool!!!

Thank you <3