A Guide to Imperial Measurements with Matt Parker, Earth Lab

Is an inch really an inch or is it three barleycorns Watch and find out what Matt Parker thinks about imperial measurements. Subscribe: Taken from Number Hub Best of Earth Lab: Best of BBC Earth: The Doctors Are In The House: Welcome to BBC Earth Lab Here we answer all your curious questions about science in the world around you (and further afield too). If there s a question you have that we haven t yet answered let us know in the comments on any of our videos and it could be answered by one of our Earth Lab experts.