This festive season AUT University Prof’s Steve Pointing and Allan Blackman released a marvelous little video explaining the science behind some of the unanswered mysteries of Christmas. How does Santa get to all those houses unseen in one night? And how does he get down the chimney? I’ve been sent the video so many times as they also cover the science that could explain Rudolf’s red nose. Bioluminescence of course!
Except…. they get it a little bit wrong. So I talked to the fantastic Rebecca Watson from Skepchick and explained the real science behind Rudolf’s red nose. Enjoy!
PS Slight correction… while we are being pedantic, in the video I say that GFP is excited by UV light. This is true for wild-type GFP but there are also lots of variants now so it’s probably the case that the GFP-expressing animals are made with a modified GFP that is excited by blue light rather than UV.
PPS If you like Rebecca’s video, you can support her to make more on Patreon, and if you can think of other science stories you would like explaining like this then let us know!