If you are a Skype user, it maybe disruptive for you that the program is shown in taskbar, although you don't need it at the moment. I will show you how to remove it from the taskbar.
By default Windows calculator doesn't support order of operation, to enable the functionality you need to activate the scientific view, let me show you how.
When people hear a word combination of Quantum Physics they really do not know how to get their head around it, this video might shed a light and help you understand the basic principles.
