In fact, it's the first version of Apple's operating system made available for the public to try before its launch. If you're not already locked into the iOS beta though, should you download iOS 9 now? We take a look at the iPhone and iPad models that are worth updating and the ones you should probably hold off.o we know that iOS 9 will run on iPhones, iPads and iPods, just not all of them. While Apple normally tries to extend the software love as far back as it can, there's inevitably some devices that miss out. Here's the full iOS 9-friendly list:
How to Use a Centrifuge. Centrifuges are often used to separate suspensions in liquids. Because of their high rotation rates, centrifuges are delicate and can break easily. However, there are only a few simple rules to remember when using them.
Bismuth compounds account for about half the production of bismuth. They are used in cosmetics, pigments, and a few pharmaceuticals, notably Pepto-Bismol, used to treat diarrhea. Bismuth's unusual propensity to expand upon freezing is responsible for some of its uses, such as in casting of printing type.ccording to the United States Geological Survey, the world mining production of bismuth in 2010 was 8,900 tonnes, with the major contributions from China (6,500 tonnes), Peru (1,100 tonnes) and Mexico (850 tonnes).