Not even that. It bends air, yes. Bended (???) air bends light, but that happens always when air is bent. Schlieren photography is a way to make the bending of the light (and therefore the air - or in general fluid) more visible to the naked human eye.
Yes - there's an abrupt change in the density of the air at the shockwave, and that makes a very visible discontinuity in the background image. Were it a smooth change in pressure you'd be hard pushed to see it even if it was flying across some graph paper.
UnitConversionBot
35C ≈ 95 ° Fahrenheit or 308 Kelvin
skipweasel
If anyone's curious https://en.wikipedia.org/wiki/Schlieren_photography
Issues420916
So it's not bending light? It's bending air in a way that it bends light?
stercusmoriturussum
Not even that. It bends air, yes. Bended (???) air bends light, but that happens always when air is bent. Schlieren photography is a way to make the bending of the light (and therefore the air - or in general fluid) more visible to the naked human eye.
skipweasel
Yes - there's an abrupt change in the density of the air at the shockwave, and that makes a very visible discontinuity in the background image. Were it a smooth change in pressure you'd be hard pushed to see it even if it was flying across some graph paper.
Issues420916
TIL. Thank you for the expansion of my knowledge.