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Showing posts from March, 2019

How do professional cooks and chefs manage to cook without needing non-stick pans?

https://www.quora.com/How-do-professional-cooks-and-chefs-manage-to-cook-without-needing-non-stick-pans Very easily, in fact. To begin, let’s consider what makes food stick to a pan in the first place. Pans, being made out of metal, have irregularities on the surface that I refer to as pores. Magnified view of stainless steel When a pan is heated, these pores “open up,” or expand . This happens on a microscopic level, not visible to the eye, but it’s happening. When a pan cools, these pores close back up, or contract . When you hear someone talk about “seasoning a pan,” they are taking advantage of this by using oil to fill in these little pores. The pan heats, oil is applied, becomes polymerized and rubbed into the pores, when the pan cools, the polymerized oil gets trapped in these pores as they close back up (thanks to Andrew Rothman for pointing this out in the comments). Excess oil is removed and the pan takes on a slicker, shinier appearance due to the p...
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Why Are Human Teeth So Messed Up?

https://www.sapiens.org/body/human-teeth-evolution/ e hold in our mouths the legacy of our evolution. We rarely consider just how amazing our teeth are. They break food without themselves being broken, up to millions of times over the course of a lifetime; and they do it built from the very same raw materials as the foods they are breaking. Nature is truly an inspired engineer. B ut our teeth are, at the same time, really messed up. Think about it. Do you have impacted wisdom teeth? Are your lower front teeth crooked or out of line? Do your uppers jut out over your lowers? Nearly all of us have to say yes to at least one of these questions, unless we’ve had dental work. It’s as if our teeth are too big to fit properly in our jaws, and there isn’t enough room in the back or front for them all. It just doesn’t make sense that such an otherwise well-designed system would be so ill-fitting. O ther animals tend to have perfectly aligned teeth. Our distant hominin ancestor...
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Why we need general education for an engineering degree

https://www.thedailystar.net/opinion/education/news/why-we-need-general-education-engineering-degree-1715674 General Education, or Gen Ed, is that portion of the course of study that lies outside the major or the specialty area, for example, engineering. Merriam-Webster defines Gen Ed as “a programme of education… intended to develop students as personalities rather than trained specialists and to transmit a common cultural heritage.” Priscilla Hobbs of Southern New Hampshire University has described general education as a “well-rounded learning experience to help develop a well-rounded student.” According to her, the three goals of Gen Ed are: reshaping the student's outlook on learning, learning soft skills desired by employers, and becoming well-versed in a wide variety of disciplines. Thus, in most US universities, the general education component of a curriculum includes courses in humanities, social sciences, languages (including communication), and the arts....
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