From meta-helices to vampire bats: five remarkable scientific curiosities
Explore the hidden mechanics of the natural and man-made world. This video examines how thermal conductivity allows diamonds to cut ice, the complex geometry of light bulb filaments, and the specialized anatomy of owls.
The presentation explores diverse phenomena, such as how a blunt diamond can slice through ice due to its superior heat conduction. It also delves into the 'meta helix' structure found in the filaments of traditional incandescent bulbs. In the animal kingdom, the video highlights the predatory advantages of asymmetrical owl ears, which create interaural intensity differences to help locate prey vertically. Additionally, it reveals the deceptive behavior of certain vampire bats that mimic chicks to access blood from a hen's brood patch.
The episode even touches upon linguistics, explaining that the term 'second' originates from it being the second subdivision of an hour, following the minute.
Source: 5 interesting things - episode 3
