Helpful studying tricks for those who are bad at that kind of thing. Definitely going to help me.

Electrochemical cells

ear points

Audrey Hepburn Quotes

Physics Free Body Force Diagram Poster

Angular velocity is equal to the circumference (2 pi r) times the frequency; if whirling a mass around in a horizontal circle, can find the radius of the circle by (length of string x sinangle), then use the above equation

Challenged by Stuart McMillen

the contrast is beautiful

yep...it's not a fear of falling - it's a fear of the sudden stop: