(MStudioImages/Getty Images) At some point in the recent past, podcasting made the jump from being a DIY tech for radio broadcaster wannabes to a reputable mainstream medium. You may recall when podcasts first popped into the public consciousness over a decade ago along with the newly ubiquitous iPod. Despite wavering levels of popularity, podcasts never really went away, and they are once again solidly in the mainstream. The term podcast is—and always has been—a misnomer. Podcasts aren't exclusive to iPods or a particular device. Like other on-demand content, podcasts work on nearly every platform. All you need to do to get started is download a podcast app, such as Pocket Casts or Castbox. You can even listen to most podcasts from their associated websites. If you're brave enough to venture into creating your own podcast, at the very least you need audio editing software to produce the best possible recording quality. We also recommend taking a look at dedicated podcast … [Read more...] about The Best Podcasts for 2019
NASA astronaut Randy Bresnik makes a spacewalk in November 2009, during the final space shuttle flight to or from the International Space Station. His spacesuit protected him from the UV rays. NASA Advertisement NASA astronaut Neil Armstrong gazed through overlapping shields. While the Ohio native took his "one small step" onto the moon, he was wearing a transparent, bubble-shaped helmet fitted with visors that could be raised or lowered at will. The innermost visor and the bubble itself were made of polycarbonate shielding — a material that helped protect Armstrong from getting an overdose of ultraviolet (UV) radiation. Like visible light beams, UV rays are electromagnetic waves released by our sun. Moderate exposure to some of those waves can do a body good. Contact with ultraviolet B (UV-B) rays, for example, prompts human skin to manufacture vitamin D3. But when we absorb too much of this radiation, DNA can get irreparably damaged, opening the door for skin cancer. And of … [Read more...] about Do Astronauts Need Sunscreen in Space?
Grady Stiles, also known as Lobster Boy, suffered from a genetic condition called ectrodactyly, in which his fingers and toes were fused together to form claw-like extremities. Stiles was a resident of Gibtown for many years before his murder in 1992. YouTube Screen Shot Advertisement Back in the 1950s, Gibsonton was a sleepy little Florida town not far from Tampa. Dogs slept in the streets, and the fishing was good in the Alafia River. But if you looked a little closer, you'd notice that the town wasn't quite like any you'd ever stumbled into before. Gibsonton was just slightly off — there was something just a little bit different about this town. A giant and a woman with no legs ran the restaurant. The post office had a low counter for "little people." Siamese twins ran the fruit stand. Lions, elephants and monkeys lived in back yard pens, and carnival rides were parked in driveways all over town. Known as Gibtown, it was where folks from the freak show settled and retired. … [Read more...] about Gibtown: Where Circus Folk Went to Retire
Octobot Is a Squishy, Cute, Autonomous Robot HowStuffWorks NOW Advertisement Science fiction has long presented us with a pervasive dichotomy of robot-human interaction: They're entities of hard steel, sparks and grating gears, while our own substance is soft flesh and the gentle pulsation of circulatory currents. Just look to "The Terminator," in which a metal death machine assumes only the semblance of humanity through the use of a false, fleshy skin, to see what we're talking about. But we're evolving robotic bodies to be increasingly biomimetic and soft-bodied. The robot doesn't always have to be the hard core to some comfy, human-friendly exterior. The substance of the machine itself can take on the likeness of biological systems, too. Harvard University's Octobot is the latest reminder of this quest for flesh. The tiny, squishy automaton is hardly the first soft-bodied bot, but it does take the honors as the first entirely untethered, entirely soft robot. Inspired by the … [Read more...] about Octobot Is a Squishy, Cute, Autonomous Robot
The 12-color wheel used in modern color theory is basically the same as the one first created by Sir Isaac Newton in 1666. Mark McKinney/Flickr (CC BY-NC-SA 2.0) Advertisement The first day of your first chemistry class, somebody's going to bring up the periodic table of elements. Similarly, you can't get very far playing piano without learning about the concept of scales. And if you have just begun a course of study in art and design, buckle up, because somebody's going to start talking about the color wheel before too long. The color wheel is a tool used in color theory that helps us understand the relationships between individual colors in order to use them well. "Sometimes you walk into a room and you think to yourself, 'I hate this room but I don't know why,'" says Marcie Cooperman, who has taught color theory at Pratt Institute and Parsons School of Design and is the author of "Color: How to Use It." "It's probably the color." When you know how different colors relate to each … [Read more...] about Color Wheel Theory: How to Talk About Color