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.
Apparatus that rotates containers at high speeds, creating centrifugal forces. One use is for separating mixtures of substances of different densities. A laboratory centrifuge is used to separate small amounts of suspension. Test tubes of suspension are spun around very fast so that the solid gets flung to the bottom.