In the world of tech, Steve Caplin looks at powered legs like "the electric bike but for walking". There's a 37mph electric surfboard while scientists have discovered patterns that make sharks less interested in surfers. The mosquito parasite that causes malaia has been genetically modified into a vaccine. The principle of octopus suckers is to be used to help retain dentures. The world's thinnest spaghetti, thinner than hair, can make bandages. High speed internet apparently makes us fat. Pigeon droppings trapped German drivers in an underground car park until 3am. And Korean scientists think ships could dock with suckers instead of rope.

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