J.K. Rowling’s Harry Potter series may be fiction, but a pair of scientific journals from the U.K. are bent on proving that two spells found the novels can’t be real. These two are Gillyweed and Skele-Gro.
In the Journal of Interdisciplinary Science Topics, a study by Rowan Reynolds and Chris Ringrose explains how Gillyweed, the magical plant that Harry swallowed in Harry Potter and the Goblet of Fire to grow gills and survive one of the challenges in the Triwizard Tournament, isn’t possible.
They claim that Harry’s gills appear 60 square centimeters in surface area, therefore he needs 443 litres of water to process and at 100 percent efficiency to produce Gillyweed. However, in David Yates’ movie, Harry swam with his mouth closed underwater, which according to the study’s authors, isn’t efficient.
Reynolds and Ringrose wrote in the journal:
In the film, Harry is frequently seen swimming with his mouth closed, which is not how fish use their gills.
If Harry were to open his mouth to allow water into his throat and out through the gills, it may be plausible that he could breathe underwater. However, without doing this, it is simply not plausible that he could extract sufficient oxygen for survival.
Meanwhile, a different team, who used the same journal, also explained the impossibility of Skele-Gro, Madam Pomfrey’s potion used in Chamber of Secrets to regrow Harry’s bones after Gilderoy Lockhart removed them.
Apparently, this other study claims that the energy needed while regenerating Harry’s bone loss is huge, whereby in Rowling’s book, regrowing Harry’s arm took a short period of time. Harry drank Skele-Gro at 11:50 a.m. Saturday and he had an arm complete with all bones by Sunday morning. The second study also notes how Harry was never mentioned eating during his recuperation period. Because of this, the only explanation of how Harry was able to survive the regeneration was that the extra energy came from the Skele-Gro itself.
The researchers further explained:
Skele-Gro therefore must contain unexplained magical properties that allow it to hold such a vast amount of energy and indeed be able to apply it in a short period of time.
I presume these researchers thought fantasy CAN be seen in the real world, which is why they took the time to actually disprove these spells.
I don’t know what’s more ridiculous, these new studies, or this study claiming the invisibility cloak as impossible.