Scivillage.com Casual Discussion Science Forum

Full Version: Trigonometry clearly describes all waves
You're currently viewing a stripped down version of our content. View the full version with proper formatting.
Hello all,

I've been studying Trigonometry and waves. So far I've learned that the radian measure of an angle is defined by the arc length of a unit circle as it rotates in the counterclockwise direction or + (positive) and clockwise direction - (negative) around the unit circle. Where the number y is the sine of θ called sin θ and the number x is the cosine of θ called cos θ.

What I wish to know is how is this applied to real life phenomenon, specifically waves. And by extension, wavefunctions. Assuming that reality is energy and can be seen as a free particle's energy E which is used in the Schroedinger equation.

Fun stuff about sinewaves:
https://en.m.wikipedia.org/wiki/Sine_wave

Assuming that reality is energy
Take a cat of mass m_cat and convert it to energy (E_cat=m_cat*c^2)
Take a dog of the same mass (m_dog=m_cat) and convert it to energy (E_dog=m_dog*c^2)
If E_dog=E_cat are cats the same as dogs? Hint.. no.