As we become more and more reliant on electronics, we're losing the arts of absorption and recall. Why should we need them when we can just enter our shopping list into a handy app or Google pertinent information?

But what happens when our handy electronic friends decide to check out for a while?

Have you ever been caught with no batteries on your phone and a list full of shopping you can't remember?

There are other times when you just can't use your phone or tablet to retrieve information like when you are sitting for exams, or when you are invited to make a speech.

Inside, we...