Behold the almost completed manuscript for the physics text. It finished at 420 pages, around 175 figures, and a lot of words.
I would estimate that it will be available in August if not sooner.
And note bargain prices on two of my books:
Mistress of the Waves — now $1.00 amazon.com/dp/B008J4NLWI
Designing Wargames – Introduction — now $1.50