Doppler effect, the smell of rain and water intoxication

In this episode of Science with Dr. Karl, he tackles a variety of listener questions. He explains why holding a seashell to your ear amplifies ambient noise, explores the science behind why certain songs give us goosebumps—linking it to our sympathetic nervous system and the phenomenon known as frisson. Dr. Karl also addresses the question of whether there’s a limit to how much water we can safely drink, noting that while it’s rare, excessive water intake can be fatal. Additionally, he clarifies why printers use CMYK ink while our eyes perceive colors through RGB receptors, highlighting the differences in color mixing methods. Lastly, he dispels the myth that cows lie down before it rains to find dry spots, attributing this belief to confirmation bias.