Weaponizing the compression of wavelength between source and target: the ultimate anti-vampire weapo

Cassie-Fooky has a plan. It is one of those Baldric-level cunning plans. She finally has figured out how to bag herself a vampire. The science is sound. You see, if as a star travels through space getting closer to the earth, its light coming down on Earth compressed and becomes higher energy ratiation. So, if you rush a vampire with a torch light aimed at him, the visible light will eventually turn ultraviolet and burn him, unless he promises to stop biting girls, takes a diet of cow blood and sticks to be true to, say, a schoolgirl doll.

However, sharing her plan with the world would not be enough, because she is bored. So she has come with a very clever deception to make it look like this is all Cassandra's idea.

Of course, it would be hard to know what Cassie-Fooky is really thinking. Cassandra despairs to ever being able to do so. Amelia thinks that a right clip behind the ear from time to time is the way to go.

Some of the actual resources used in this video.
The EuroMOMO statistics with the actual humps on the cumulative data for excess deaths across Europe. We do not want to know how and exactly what they calculate. We really don't.
https://www.euromomo.eu/graphs-and-maps

An example explanation on how to calculate the speed of light. Showing that you cannot measure the speed of incoming light from somewhere which is, relatively speaking, at a fixed distance from you. Not that they were trying to do that, of course.
https://www.wired.com/2016/01/how-to-measure-the-speed-of-light-with-lanterns-wheels-and-planets/

Using redshift to find exoplanets and then finding you did not find them.
https://www.popularmechanics.com/space/a18003/no-alpha-centauri-b-planet/