Transcript of Cast Iron: An Invention of Ancient China. Mass-production began in the Han dynasty. At the time of its invention, cast iron had many uses. Since the discovery of steel, iron (both cast and wrought) has become less common, as steel is generally stronger.
Asafoetida is a plant. It has a bad smell and tastes bitter. That probably explains why it is sometimes called âdevilâs dung.â. People use asafoetida resin, a gum-like material, as medicine. Asafoetida resin is produced by solidifying juice that comes out of cuts made in the plantâs living roots. Asafoetida is used for breathing problems including ongoing (chronic) bronchitis, H1N1 swine flu, and asthma.
It fights bacteria in your body. Metronidazole is used to treat bacterial infections of the vagina, stomach, skin, joints, and respiratory tract. This medication will not treat a vaginal yeast infection. Metronidazole may also be used for purposes not listed in this medication guide. Take this medication for the full prescribed length of time. Your symptoms may improve before the infection is completely cleared. Skipping doses may also increase your risk of further infection that is resistant to antibiotics.