W hen you're working with data in Excel, certain tasks can feel unnecessarily tedious. Maybe you need to split a column of full names into separate first and last name columns, or combine text from ...

So, I've heard a rumour that you can change liquids to gases, and back again. Right! Go on then. Let's see. Nice shower Square? Whoa! Cheeky. When water is heated up, it changes state from a liquid to ...

Sorry! Anyway, some changes we make to materials are irreversible. So once the change has happened, we can't go back again. If you crack an egg in a frying pan and heat it up, that's an irreversible ...