Quick Answer. Curad advises that healing occurs in four stages with deep cuts: hemostatis, which occurs immediately; inflammation, which lasts up to 4 days; proliferation, which typically takes 21 days; and remodeling, which can take up to 2 years. Keep Learning.
Euler Problem 14: Longest Collatz Sequence. Euler Problem 14 looks at the Collatz Conjecture. These playful sequences, named after German mathematician Lothar Collatz (1910â1990), cause mathematicians a lot of headaches. This video introduces the problem much better than I can describe it.
The Records for the Longest Tennis Match The most memorable part of Wimbledon 2010, Day 4, was the fact that the seemingly never-ending match came to an end with the defeat of French qualifier, Nicolas Mahut at the hands of 23rd seeded American, John Isner.