Science With Acquah - Ask Steve - Episode 3

This episode of ‘Science with Acquah – Ask Steve’ covers six main topics: Why does cheese go moldy? – An explanation of how mold occurs and the types of cheeses to discard when mold is present is addressed. How do fridges get so cold? – The cycle of refrigeration using a coolant is explained. What is coral? – The internal structure, characteristics and food source are mentioned. What makes the colors at sunset? – The principles behind the phenomenon of Rayleigh Scattering are addressed with reference to the electromagnetic spectrum. Why are there waves on the sea? – The most common cause of waves is noted and the effect of underwater earthquakes in the production of a tsunami is explained. Why do trains lean on one side? – The effect of forces on the trains and the need to maximize speed is discussed.