The flight of the bumblebee is not only an excellent classical piece composed by Rimsky-Korsakov, but also the subject of another ‘fact’ about insects, which usually goes something like: “According to the laws of physics, bumblebees shouldn’t be able to fly.” or a phrase of similar meaning. Indeed, the violation of the observably consistent Newtonian Laws of Motion by bumblebees and only bumblebees is not a very strong position to hold and might suggest the advocate of this belief should more fully examine how bumblebees generate lift. I shall try to provide such an examination. But first, let us delve into insect flight more generally!
The ‘well-known fact’ that “If a flea were the size of a human, it could jump over the Eiffel Tower” is an interesting misconception – one that disregards laws of scaling and structural engineering. A brief analysis of the claim can reveal some of its substantial flaws. But before we go any further, let’s use our imaginations, if only as a preliminary thought-experiment.
Picture a human-sized flea (let’s say about 170cm in length), henceforth named ‘enormo-flea’. It has the exact same proportions as an ordinary flea, but happens to be 170cm long.