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.
The younger the roosters the better your odds of fertile eggs. I usually keep about one rooster for every 20 hens. This can vary according to the amount of space and the temperament of the roosters. Chicks hatch at 21 days, the hens gave up because none of the eggs were fertile.he younger the roosters the better your odds of fertile eggs. I usually keep about one rooster for every 20 hens. This can vary according to the amount of space and the temperament of the roosters. Chicks hatch at 21 days, the hens gave up because none of the eggs were fertile.