The “Helmholtz resonator” concept explains the frequencies of sound produced by clapping the hands together in different configurations.

If you happen to witness a bit of glass breaking at a restaurant, avoid looking like a cad by not reacting in this one ...

But when politicians were spotted clapping on their doorsteps, people started to question Clap For Carers. They quite rightly called for pay rises instead of claps. And, after weeks of delayed and ...