Would sea level rise if we all went swimming?

Why does sugar get onion smells off my skin? Are aluminium cooking pots harmful to health? Why don't hail stones make holes in leaves? What causes heart palpitations? If we all went swimming at the same time, by how much would the sea level rise? Why are covid swabs so long? How are fibre optic data transmission rates so high? What determines the colours of a hen's egg? Does alcohol in food get into the bloodstream? How can you make a camera faster than light? Why can I hear my own heart in my ears? Join Dr Chris Smith and 567 CapeTalks Koketso Sachane to find out...