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As the raindrop falls, it loses that rounded shape. The raindrop becomes more like the top half of a hamburger bun. Flattened on the bottom and with a curved dome top, raindrops are anything but the classic tear shape. The reason is due to their speed falling through the atmosphere. Air flow on the bottom of the water drop is greater than the airflow at the top. At the top, small air circulation disturbances create less air pressure. The surface tension at the top allows the raindrop to remain more spherical while the bottom gets more flattened out.
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But then the rug was yanked out from under us August 2006 when the International Astronomical Union (IAU) voted to downgrade Pluto to mere “dwarf planet” status. There are reasons for this, which you can
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Before we knew it, we were adults, and our young children were learning about the apatosaurus , and we were like, “No, no, that’s a brontosaurus, silly!” Luckily, in 2015, another paleontologist deci...
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Nah. Much of that is wrong, actually. Here’s what the “Fake History Hunter ” has to say about all of it:
This era lasted roughly 1000 years and life was very different at certain time...
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In the age of misinformation and disinformation, we’re (hopefully) all getting a little better about fact-checking—or at least, about not automatically believing every last thing we read or hear on the internet. But there are some fundamental truths we were taught as kids that, it turns out, were...
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Twenty people were eventually executed as witches, but contrary to popular belief, none of the condemned was burned at the stake. In accordance with English law, 19 of the victims of the Salem Witch Trials were instead taken to the infamous Gallows Hill to die by hanging. The elderly Giles Corey,...
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As you age, gravity causes the cartilage in your ears and nose to break down and sag. This results in droopier, longer features. Studies have estimated that ears lengthen at a rate of about .22 millimeters per year. The growth appears in men and women, so it’s just one of the many universal joys ...
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The myth of burnings at the stake in Salem is most likely inspired by European witch trials, where execution by fire was a disturbingly common practice. Medieval law codes such as the Roman Empire’s “Constitutio Criminalis Carolina” stipulated that malevolent witchcraft should be punished by fire...
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Proprioception includes the sense of movement and position of our limbs and muscles. For example, proprioception enables a person to touch their finger to the tip of their nose, even with their eyes closed. It enables a person to climb steps without looking at each one. People with poor proprioce...
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Air that flows at a certain angle (generally 15 deg) over the top and bottom of a wing follows the curve of the wing surfaces very closely. But as the angle increases (the angle of attack), the smooth airflow behind the wing becomes more turbulent and reduces the lift.
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