The standard answer is that moths aren't attracted to bright lights, they're confused by them. Many species of moths migrate and they use the Moon as a navigational cue. Then, humans come along with artificial lights, which appear brighter than the Moon and those become the moths' point of reference, instead. By this theory, the moths don't even mean to end up at the light. They're just trying to maintain a constant angle of flight relative to it. But, because they keep getting closer, that angle keeps changing until, BAM!, they run into their artificial moon.
Trouble is, there are a lot of holes in that theory. Not all the moths that are attracted to lights are migratory, for one thing. For another, there are studies showing moths beelining for the light, rather than spiraling towards it, as you'd expect if the effect could be explained by navigational error. So why head towards the light? Other theories include: An attempt to get a better look at the surrounding area for places to hide from predators; a case of mistaken identity where male moths confuse the spectrum of light for that produced by female moth pheromones; and a different case of mistaken identity where the moths confuse artificial light for night-blooming flowers. All those theories have holes, though. So the ultimate answer seems to be that we still don't know why moths head towards the light. Maybe you can do the research and figure it out.
Image: basking in the light, a Creative Commons Attribution (2.0) image from ganesh_inxs's photostream
Writing in Slate, Cathy “Weapons of Math Destruction” O’Neill, a skeptical data-scientist, describes the ways that Big Data intersects with ethical considerations.
Our pals at surreal clothiers Imaginary Foundation bring us this fine enamel pin emblazoned with an essential insight of the ages, captured by a simple Venn diagram. Just $10!
In his weekly address, President Barack Obama this week pledged $4 billion in federal funding for computer science education in schools throughout the nation.
Remember back to the time when people thought java was just a hip way to talk about coffee? Or you vaguely remembered from geography class that it’s an island in the South Pacific? We’ve come a long way since then and now that we’ve rocket blasted into the tech future, you’re going to need to […]
Plastic is so 2013. You don’t want to buy something only to throw it away or lose it and barely care. You like nice things and want to hang onto them. The Plazmatic lighter here is a high quality, high tech alternative to the typical cheap, plastic lighter you get at the old gas station. […]
Real engineers build things. Super cool engineers build things with their hands and fingers, like our engineering forefathers did. No idea where to even begin to do that? This step by step Arduino course is now 92% off and is going to get you up and running, from zero to hero, in no time. So […]