Have you ever wondered what it would be like to have access to a time machine? Forget all that stuff about going back and accidentally killing your grandfather and snuffing yourself out of existence, or changing the course of history by squishing a butterfly. Imagine being able to check out what Julius Caesar was doing at the Rubicon, or dropping in to one of Hitler's early rallies.

Unfortunately, nobody has invented a time machine yet as far as we know, so we have to make do with the next best thing. Have a look at this very short and succinct video by Niel McLean, over on the Learning Foundation's website (click on Pause for Thought):

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