Meconium is “what’s been sitting inside the intestines while the baby is forming,” says L.E. 1.) Black Tar (Definitely Not Texas Tea) What it is: Meconium When: Within the 24 hours after birth What you need to know: You’ve probably never seen something as sticky, thick, tar-like and greenish-black as your child’s first poop. “Your baby’s poop tells a whole lot about how he or she is doing with eating.” So get over any squeamishness you might have and check out this important baby poop info. From color to texture to odor, you might find yourself sometimes wondering, “Is this normal?” That’s a good thing! “The extra attention to stool is very well-deserved,” says Laura Jana, MD, co-author of Heading Home with Your Newborn: From Birth to Reality. The 2003 paper didn’t use a W function and stuck with the Hagen-Poiseuille equation, so the new model purports to be more accurate and precise especially from a greater height.14 Types Of Baby Poop (And What They Mean) You’ll probably never care about (or talk about) poop as much as you will when you’re a new parent. The Lambert W function is also known as the “ product logarithm,” producing a log-y curve that mathematically models a lot of phenomena from physics. Furthermore, we address the penguin’s rectal pressure within the hydrodynamical approximation combining Bernoulli’s theorem and Hagen-Poiseuille equation for viscosity corrections.” And using this baseline for a penguin on the ground, the scientists extend the 2003 paper into a new analysis of what happens when a penguin on higher ground, like from the edge of a cliff, releases waste from a greater height: “In the presence of the viscous resistance, the grounding time and the flying distance of faeces can be expressed in terms of Lambert W function. That means for a human to have the backdoor thrust of a penguin, they’d need to be able to propel waste matter almost 6 feet away. Therefore, one can immediately understand that penguin’s rectal pressure is relatively much compared to that of a human.” Since a typical height of a Humboldt penguin is given by 0.4 m, this distance corresponds to the situation that if a human being whose height is 1.7 m tries to evacuate his/her bowels, the object could fly to 1.7 m away. Hiroyuki Tajima and Fumiya Fujisawa, from Japan’s Kochi University and the Katsurahama Aquarium, collaborated on “Projectile Trajectory of Penguin’s Faeces and Rectal Pressure Revisited.” They explain their findings: “The flying distance of penguin’s faeces reaches about 0.4 m even on the ground. The new research is on arXiv, but it hasn’t been reviewed or accepted for publication yet, presumably because all other scientists are cowards. In a new study, researchers revisit an Ignobel-winning 2003 paper about the physics of penguin feces. But scientists hope you have some room in your heart to think about a very different kind of fluid: penguin poo. In 2020, Americans have learned a lot about fluid dynamics, such as the way our breath droplets spray through the air when we're not wearing a protective mask.
Penguins must expel waste a long way while protecting their young in the nest.A new paper calculates the propulsive pressure of penguin waste.
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