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.
A really useful feature in case you want to receive a warning notification before you use all of the mobile data available according to your mobile provider contract. It's a great way to avoid additional charges.
If you don't want websites tracking you, and you don't want the pages you view to be saved in browse or search history, you need to active the incognito mode and this is what you need to do.
Zeppelins are making a comeback and rightfully so. They are capable to carry vast amounts of cargo, they don't require costly airports and their fuel consumption is only one third of a conventional cargo plane.
Pretty simple and useful tutorial, where you will open a random photograph with smoke and convert it into something really not friendly for our environment.