Eugene Wigner
Last edited: August 8, 2025eukareotyic cell
Last edited: August 8, 2025A type of cell.
Sample eukareotyic cell gene:
- TATA box promoter
- 5’ non-coding sequence
- Non-coding introns interlaced between exons, unique to eukareotyic cells. Bacteria (prokateotic cells don’t contain introns or have small them)
- 3’ non-coding sequence
Euler-Bernoulli Theory
Last edited: August 8, 2025The Euler-Bernoulli Theory is a theory in dynamics which describes how much a beam deflect given an applied load.
Assumptions
For Euler-Bernoulli Theory to apply in its basic form, we make assumptions.
- The “beam” you are bending is modeled as a 1d object; it is only long and is not wide
- For this page, \(+x\) is “right”, \(+y\) is “in”, and \(+z\) is “up”
- Probably more, but we only have this so far.
- the general form of the Euler-Bernoulli Theory assumes a freestanding beam
Basic Statement
The most basic for the Euler-Bernoulli Equation looks like this:
Euler's Equation
Last edited: August 8, 2025\begin{equation} f(x) = e^{ix} = \cos (x) + i\sin (x) \end{equation}
this brings a circle of radius one, because in every point, velocity is orthogonal to where you are (because \(f’(x) = if(x)\), and multiplying by \(i\) accounts for a rotation of 90 degrees.
And so,
\begin{equation} z = re^{i\theta} \end{equation}
gives any point in the imaginary polar plane.
