T here's no such thing as alchemyâmagically changing common chemical elements into rare and valuable onesâbut electroplating is possibly the next best thing. The idea is to use electricity to coat a relatively mundane metal, such as copper, with a thin layer of another, more precious metal, such as gold or silver.therwise, when metal atoms from the electrolyte are deposited onto it, they won't form a good bond and they may simply rub off again. Generally, cleaning is done by dipping the electrode into a strong acid or alkaline solution or by (briefly) connecting the electroplating circuit in reverse.
*ahem*. More on the birth of Baby Yao Ming, a male Masai giraffe, from the Houston Zoo's official blog : Mom Neema delivered the healthy male calf at approximately 7:10 a.m. on Monday February 25 at the McGovern Giraffe Exhibit following a 14 month pregnancy. âThe calf weighs 62 kilos, about 139 pounds and stands 74 inches tall,â said Houston Zoo Hoofed Stock Supervisor John Register. Neema is five and a half years old.
The highly anticipated baby giraffe has been born at the Dallas Zoo. Thanks to a live stream set up by Animal Planet and the zoo, viewers were able to watch the birth online. VPC. Congratulations to Katie, the new mom! The giraffe gave birth around 6 p.m. Friday afternoon with a large online audience looking on.