In this articleÂ­, we will examine solar cells to learn how they convert the sun's energy directly into electricity. In the process, you will learn why we're getting closer to using the sun's energy on a daily basis, and why we still have more research to Â­do before the process becomes cost-effective.n this articleÂ­, we will examine solar cells to learn how they convert the sun's energy directly into electricity. In the process, you will learn why we're getting closer to using the sun's energy on a daily basis, and why we still have more research to Â­do before the process becomes cost-effective.
How long does a hen stay fertile after the rooster is gone?   A hen stays fertile for about 2-2 and a half weeks after the rooster is gone. The sperm stays in her for about that long, sometimes even up to 3 weeks. Started career as professional chef then a district sales manager for a wine & spirits company.
Most hens will lay fertile eggs for about two weeks after a mating. Some may lose fertility after maybe 9 days bit I think most of us use two weeks and that usually works out OK. There have been several reported cases on this forum where eggs were fertile for as long as 3-1/2 weeks after a mating.t takes an egg about 25 hours to go through the henâs internal egg laying factory. It can only be fertilized during the first 15 minutes of that journey. Iâll help you with the math.