1.

You know that in moments of stress

You tend to get tenser, not less;

   But since stress is a tensor

   You needn't feel denser;

It's tricky, I have to confess.

 

2.

Stress is related to strain;

Surely that's perfectly plain!

   But please don't neglect

   The viscous effect,

For this makes the energy drain.

 

3.

The equation of Navier-Stokes

Describes flow of egg-whites and yolks;

   But now take the curl,

   This will please any girl,

And may satisfy even the blokes.

 

4.

Profiles of speed parabolic

Are common in channels hydraulic,

   In pumping of blood,

   In sliding of mud,

And in suction of drinks alcoholic.

 

5.

The spreading of honey on toast

Is a task that gives pleasure to most;

   But the pressure's unbounded

   In corners not rounded,

So take care if you are the host!

 

6.

You need to be fairly astute

To track flow in a corner acute;

   Though creeping and steady

   There's many an eddy,

Too many by far to compute!

 

7

A sphere near a vertical wall

In Newtonian fluid will fall

   Under modified weight

   With proportional rate,

But sideways it won't move at all.