How Loud Can You Burp?
by Glenn Murphy
More questions and answers from the author of the mega-selling Why Is Snot Green?
How loud can you burp? Could we use animal poo to make electricity? Why is water wet, and is anything wetter than water? What's the deadliest disease in the world? What are clouds for? What's the difference between a brain and a computer?
This is a wonderfully funny and informative book, which helps us take a fresh look at the world (and universe) we live in, with no boring bits and an abundance of fascinating facts!
Publisher: Macmillan Childrens Books
'The loudest burp on record is around 105 decibels – louder than a motorbike or chainsaw, and loud enough to cause real pain to anyone close enough to it. But don’t try these at home, as they could be dangerous!
Louder than a motorbike?! No way!
Yup. The world-record burp measured 104.9 decibels (decibels, or dB for short, are the units used to measure volume). And that was from over 2.5m away! Close up, the World Champion burper claims to be able to reach 118dB or more. The average motorbike roars away at around 90dB – a full twenty-eight units lower!
So who did it?
An English guy called Paul Hunn. He smashed the previous burping record in July 2004, and no one has topped it yet.
How could he burp so loud?
Well, like all sounds, burps are just waves of air pressure, and, if you make these waves big enough, any sound can become loud. To create a sound, an object – like a bell or guitar string – is made to vibrate back and forth very fast by striking it, plucking it or rubbing something against it. In turn, the object compresses the air molecules around it, making waves or vibrations that are carried through the air. When they reach your ears, these pressure waves vibrate your eardrums. From there, the vibrations are amplified by a set of little bones, picked up by a set of tiny hairs in your cochlea (which is a long, thin tube filled with fluid and lined with hairs – all coiled up like a snail shell in your inner ear). Here the vibrations are finally translated into nerve signals that your brain interprets as sounds, such as "bell", "guitar string" or whatever.'
About the author
Glenn MurphyGlenn Murphy is the author of around 20 popular science books. He received his masters in Science Communication from London's Imperial College of Science, Technology and Medicine. He wrote his first book, Why Is Snot Green?, while managing the Explainer team at the Science Museum, London. In 2007 he moved...
It is so helpful, thanks Glenn.
The book was really interesting and i wanted to keep on reading especially because i like adventures