We're all guilty of taking ink for granted. Yes, you can use it to leave a mark on a piece of paper, but it's capable of so much more. Below, we take a close look at seven extraordinary uses for ink. You'll be amazed by what a versatile substance it is. We explore ink that explodes, ink that glows in the dark, ink that's sticky and ink that could soon be used to save thousands of lives each year. After reading this, you'll never underestimate ink again.

Seeing as such an enormous amount of the earth's surface is taken up by water, it makes sense to start floating things other than traditional boats on it. I came across a picture of the floating church below the other day and following my initial surprise was quickly reminded of the floating camping patch I read about a couple of weeks ago. It does seem that most things can, and will be, floated on water. And why not?

Rubber ducks - in their original state at least - have been floating around bathtubs for decades, oblivious to the fact that the enormity of their fame has resulted in a number of strange variations and events being produced in their honour. From rubber duck races to enormous floating replicas, rubber ducks are truly a part of our culture. For example...

For some reason there are hundreds if not thousands of large outdoor hand sculptures around the world, the majority of which seem to be reaching towards the sky in an attempt to escape life below ground. I'm a big fan of all things creepy so thought I'd show you 4 of the best examples. Here they are.