As you can see, it's attacking the early 1950s. Well, it was a simpler time.
Now if only we had several billion dollars and some engineering/ mad-science/ world domination degrees we could stand a chance of building this crazy contraption. Also, if we knew how to send it back in time that might help too. And, as it's ideally made out of solid 24k gold it'd be nice if we could lay our hands on some of that.
Okay, the fact it's completely fictional and nigh-on unbuildable (despite what some may say!) is beside the point. The point is that which I mentioned in the very first sentence: the pub is the place where mad ideas are born and nourished. And the world would be a far far sadder place without the whimsy, hilarity and craziness that a kindly environment and a few drinks provide. Whether you're creating a story, cartoon, play, TV show or enormous waving cat weapon, the company of good friends and some delicious liquor will always provide you with inspiration.
So go, grab some mates, find your nearest pub, and let the crazy ideas commence!