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.
it takes 21 days for the egg to hatch.. so will they all hatch on different days? and if the rooster mates with the hen once.. and the hen is incubating the egg.. will the rest of the egg she lays fertile? and how long... show more will the hen lay one egg a day (thats fertilized) or will it lay like 5 a day (thats fertilized)? it takes 21 days for the egg to hatch.. so will they all hatch on different days? and if the rooster mates with the hen once.. and the hen is incubating the egg.. will the rest of the egg she lays fertile? and how long after the rooster and hen mates, will each egg come out fertile?