1. The difference between dark matter and dark energy

3. LIGO event, black holes and dark matter

4. The expansion of the universe

5. Notes on quarks and the Omega-

6. A terminal nuclear recoil experiment

8. Procedure for computing the cosine of an angle in a Curta

9. Procedure for computing quadratic equations on the Curta

11. Statement of problem: looking for a signal against an uncertain background

12. Rocket Trades

14. Collision Rate Between Primordial Black Holes and Sun Sized Stars – Estimates for the Milky Way

15. Nuclear selection rules in (N, Z) ∗ → (N, Z) + e + + e −

16. Cross section enhancement – classical somerfeld effect

17. Confidential – not posted

18. Models falsified by population measurements in yeast

24. Proof that a pentagon can be inscribed in a circle

19. Confidential – not posted

20. Confidential – not posted

21. Motion of Moon’s shadow on Earth during the 2017 total solar eclipse

32. Unruh radiation

54. Surveying on a spherical Earth, related to “The Measure of All Things”