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I have a project for my BC Calc class due tomorrow. We had to come up with a "creative" related rates problem and make a shoebox diagram for it.
So, I'm asking you guys to solve it, so I know if I need to change anything.
Here's the problem:
A biscuit is being baked in an oven for 30 minutes. The unbaked biscuit has a radius of 3 cm and a height of 1 cm. The biscuit is being baked inside of a small oven, so its maximum height is 5 cm. As the biscuit bakes, its height increases and its radius decreases.
At what rate is its radius changing, in cm/min, when the radius is 2 cm (assuming the volume does not change)?
Also, there's an easier way to solve this that doesn't involve calculus, but don't solve it that way, please.
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Does Neil deGrasse Tyson come off as an elitist prick to anyone else? Really, i used to have far more respect for him, but then i watch a StarTalk where he interviewed Alan Rickman.
He was making comments in response to Alan Rickman's difficulties with physics during his school years that would often culminate in something to the effect of, "So then you became an actor!".
It was the delivery that rubbed me the wrong way, as if he was suggesting his own position as an astrophysicist was the only noble and respectable path or position, and others were comparably effortless and meaningless.
His mentioning philosophers as "Wasting a lot of ink" and "distracting themselves" with issues also came off as asinine, as though he believes philosophy and science to be adversarial fields of study.
Am i missing something, here?
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>Samuel Stanley, president of Stony Brook University in New York, will serve as chair of the US National Science Advisory Board for Biosecurity. The board has been enmeshed in controversity for recommending in December 2011 that two research papers on highly pathogenic avian influenza H5N1 be redacted for safety and security reasons, before finally voting in favour of full publication in March this year. Stanley replaces acting chair Paul Keim, a microbiologists at Northern Arizona University in Flagstaff. All current board members are to be replaced.
From Nature, currently working through back issues, found this from Sept.
Not sure what to make of it.
Does anyone know anything about "Biosecurity"? I'd never heard of it before but it almost sounds as if there are firms behind the scenes 'protecting' us from scientific research... Is that true? If so, what the shit? Why?