# The Two-Law Ditty

This parody (written by Greg Crowther) is sung to the tune of "Doo Wah Diddy Diddy" (written by Jeff Barry and Ellie Greenwich and performed by Manfred Mann).

 Lyrics

Energy is not created or destroyed.
(Sing the two-law ditty, diddy dum diddy do.)
If mass is constant, this law is never void.
(Sing the two-law ditty, diddy dum diddy do.)

Change forms (change forms),
Change names (change names),
Change forms, change names,
The amount will stay the same...

Now, energy is dissipated as a rule.
(Sing the two-law ditty, diddy dum diddy do.)
The flow of heat will always go from hot to cool.
(Sing the two-law ditty, diddy dum diddy do.)

Now you (now you)
Realize (realize)
Now you realize
Entropy will always rise...

Such are the laws --
The thermodynamical laws....
And if you're a scientist,
Then you'll be able to recite them without a pause!

Energy’s conserved; entropy goes up.
(Sing the two-law ditty, diddy dum diddy do.)
I said, energy’s conserved; entropy goes up.
(Sing the two-law ditty, diddy dum diddy do.)

You can't win (can't win),
Can't break even (can't break even).
You can't win, can't break even.
These are facts you can believe in....

Such are the laws --
The thermodynamical laws....
And if you're a scientist,
Then you'll be able to recite them without a pause!

Energy's conserved; entropy goes up.
(Sing the two-law ditty, diddy dum diddy do.)
I said, energy’s conserved; entropy goes up.
(Sing the two-law ditty, diddy dum diddy do.)

You can't win (can't win),
Can't break even (can't break even).
You can't win, can't break even.
These are facts you can believe in....

Sing the two-law ditty, diddy dum diddy do.
Two-law ditty, diddy dum diddy do.
Two-law ditty, diddy dum diddy do.

C.P. Snow is credited with summarizing the first and second laws of thermodynamics as "You can't win" and "You can't break even," respectively.