 Let's do a quick thing about formatting units, so in chemistry we often use moles per decimetre cubed and you will type it out like that, and then maybe highlight this and put it as superscript, like the control shift equals all the superscript button, and you would do that again and again and again and it might get a bit tedious, so we're going to do a couple of things to make it a little better, so first of all I'm going to fix that minus sign, I'm going to write dm space dash. If I put a space in the end there it becomes an empty dash and I'm doing that just because I'm on a laptop keyboard, if you do control and the minus key on your number pad it will insert that for you. So I've got that in and I'm going to superscript that, that sounds great but what if I'm just going to type in another, let's copy some words in. So what you might sometimes see is that it breaks across the line and that's actually quite difficult to stop. So what we're going to do is just come in between the dm and the m dash there, come to insert, symbol, drop down to more symbols, and under special characters at the very bottom there is no width non-break, so I'm going to click insert. And you don't see anything because it is a no width character, it has zero width, you won't see the effect of it. So if I click into there I need to click it twice for some reason, I can insert another one. And it doesn't look like anything is there but I press control shift 8 or controls asterisks I can see those characters appear. So that is also available if you click the hide and show characters button. So there it is, dm cubed and then if I do this it all stays together as one block. Now that is a bit awkward to keep putting it in so what I'm going to do is highlight all of those characters. You can see those no width characters involved there because I had to tap an extra couple of times. And I'm going to type alt t a and that gets my auto correct options. This will automatically be, is what when you mistype something in Word it looks up on this list and replaces them. But you can also do format a text, so if I click format a text I see I've got the superscripts here. So all I need to do is here type in dm minus 3, I've already got a few of these like dm cubed in there and then add that. Okay that. Now if I type mull dm minus 3 automatically formats it. I've also got several other ones, I think I have meters per second per second I have per mull added in here and they all have that number breaking character. So if we tap it along to the end it all stays in one place. Except for that one maybe I'll fix that one in a moment.