Send the following on WhatsApp
Continue to ChatRain on water -- why does each raindrop cause several concentric waves? https://mirjamglessmer.com/2016/04/20/rain-on-water-why-does-each-raindrop-cause-several-concentric-waves/
Rain on water -- why does each raindrop cause several concentric waves? https://mirjamglessmer.com/2016/04/20/rain-on-water-why-does-each-raindrop-cause-several-concentric-waves/