Nov 242014
 
GE2524 Multimeter

GE2524 Multimeter

Question: Does a voltmeter have any internal resistance, and if so, what, if any, affect does it have on voltage readings?

Answer: Even if you have no electrical experience at all, I would hope that your answer to the first part of the question was, “yes.” Otherwise this would turn out to be an incredibly short post.

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Nov 152014
 
Leonhard Euler

Leonhard Euler

Besides being an obvious lady killer, Swiss mathematician Leonhard Euler gifted the world with some pretty important mathematical concepts, notational conventions, and formulas. I almost feel bad about the fact that I couldn’t even spell his name correctly until I was well into adulthood.

You are probably thinking, “Sure, he had a bitchin’ robe, and for an old-timey dude he was pretty good looking, but was he really all that?”

I can’t find any quotes from the ladies, but his peers, both contemporary and modern have had a few things to say about him and his work.

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Nov 102014
 

(Note: I lied. This will be my first “neural dump.” I began writing about Euler’s Formula, but felt what follows was worthy of its own post and a better foundation for what will follow when I tackle Euler.)

Complex numbers arose from the fact that there is no solution for x in the equation x^2 = -1 in \mathbb{R}, the set of real numbers.

Early mathematicians being the devil-may-care mavericks that they were, were all like, “Screw it. Let’s just invent a new number. We’ll just call this number i and say that the solution is x = i.” Or, in other words, this new number i they imagined up (see what I did there) is equal to \sqrt{-1}.

    \[i = \sqrt{-1}\]

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Nov 082014
 

Arduino Yun Box

I’ve had my eye on the Arduino Yun since it came out, but between an Uno, a Duemilanove, and a handful of shields, I always had something to play with and hadn’t run into any limitations that justified picking one up at the expense of some other shiny, new toy. Last week, however, a perfect storm of in-store sale and promotional coupons at RadioShack, put the Yun at a price I just couldn’t say no to.

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Nov 062014
 

notebooksI will soon be making the first post that I believe lives up to this site’s name, “Neural Dump.” The post will be an informal outline of the derivation of Euler’s Formula.  I consider this forthcoming post to be a “neural dump” since the audience I am primarily targeting is me.

“Huh?” you ask. Well, let me explain …

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