How long do dreams actually last?

Plus, are dogs smarter than cats?
03 November 2023


Image of a bed


How does a boomerang work? Are windturbines harmful to birds? Which are smarter, dogs or cats? Can you breathe liquid air? How do racecar spoilers work? How long are dreams in real time? What affects systolic blood pressure? Dr Chris Smith and Clarence Ford have all the answers...


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