Categories: Comparisons
An example a metaphor used in popular science discourse:
Hannah Fry: "Why is air invisible? I mean it is still made of matter."
MB: "Well It is just because so light waves, that we see with our eyes, the optical light waves, can just travel through it like pretty unimpeded. If we could see with different wavelength eyes, then air would be very, very visible. Like if you could see with infrared eyes for example then the atmosphere is a brick wall. Like the atmosphere is completely opaque in the infrared. … The sky would be black."
Dr Matthew Bothwell (Public Astronomer at the Institute of Astronomy, University of Cambridge) was speaking on an episode ('Invisibility Quest') of the programme/podcast 'Curious Cases'
