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 hen does the work of hatching and raising, and you get free chicks! Farm chickens can live 4 to 7 years and lay eggs for most of that time. Every year they go âoff-layâ (stop laying eggs) for several months. This happens over the winter, when thereâs too little daylight to trigger egg-laying.atching Eggs. If you want chicks, youâll need a rooster. As a rule of thumb, 10 to 12 hens per rooster is a good ratio. While you could build an incubator and supervise the development of the eggs, itâs easiest to let the hens take care of hatching.