# The Secret Agenda

*Everyone has a hidden agenda. Except me!*(Michael Crichton)*Later mathematicians will regard set theory as a disease from which one has recovered.*(Henri Poincare)

Here is a document describing a secret agenda that will lead to resolving the mystery of the Navier-Stokes equations and thus the mystery of flight.

**1d problem**:

- motion of a body along a 1D straight line with coordinates
- position of at time
- velocity as change of position per unit time step :
- acceleration as change of velocity per unit time step:
- Newton’s 2nd Law or with force and mass
- time stepping: With , , do for
- .

** moves with zero force: **:

- is constant
- moves with constant force : constant:
- straight line
- curved line.

**Same in 2D or 3D**:

- moves in 2D Euclidean plane with coordinates or
- position of depending on time
- as change of position per unit time step :
- acceleration as change of velocity per unit time step:
- Newton’s 2nd Law or with force and mass.

**Time stepping:**

- With , , do for
- moves with , constant, variable
- connect to spring with spring force depending on position of
- mass-spring systems of several masses and springs in 1-3D
- mass-spring systems with viscosity.

**Derivative with respect to space coordinate: space derivative:**

- gradient, Laplacian
- Euler’s and Navier-Stokes’ equations of fluid mechanics
- Navier’s equations of solid mechanics
- waves in fluids and solids: wave equation
- Fourier’s equation for heat conduction/diffusion
- Maxwell’s equations for electromagnetics
- discover secret of flight.

Two approaches to describing and understanding the World.

# Watch

- Being in Time according to Heidegger
- Task of Thinking
- Wittgenstein on Language Games
- The World Is All That Is The Case
- Wovon man nicht sprechen kann daruber mussmann schweigen.

# Hint to Solution:

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