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A new hydrogen-powered boat claims to deliver the speed and silence of an electric boat without the usual limitations of range and battery size

Just 30 years ago, diesel cars were a bit rubbish. They were loud, clattery, vibrating, smelly and usually appallingly slow. But politicians thought they were the bee’s knees, because they were margin

Despite 140 years of development, some bike engines still consume the very stuff that’s there to protect them. Professor Jamie Turner explains why

Clouds of noxious gas, stink bombs and purple smokescreens may sound like schoolboy pranks, but the animal world is just as capable of executing arresting chemical warfare, says Deborah Nicholls-Lee

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