What does a thermistor do anyway?

It is easier to understand something when you know what the actual word means.  Thermistor is a portmanteau (yes, sometimes I do pay attention to linguistics) of the words thermal and resistor.  This means that when a thermistor is heated, its resistance is either increased or decreased based on the properties of that particular thermistor.  This property makes it very useful for many different applications all over the world.  But thermistors are most useful, at least from my perspective, when they’re used in automated solid phase extraction systems.

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Pesticide Contamination – Is That Water Safe to Drink?

Have you ever spent the day walking through the woods, paused to take in the natural sights, smells and sounds of a babbling brook or flowing waterfall and thought….“I wonder how many pesticides are in that water?”

I recently experienced this when I escaped from the stress and chaos of real life to spend a day hiking through the woods. I mapped out my route, packed plenty of snacks and water, and tossed my camera (i.e. my iPhone which has a camera) into my backpack, and I was off. I wasn’t far into my hike before I heard the familiar rush of moving water. Excited at the thought of finding a natural stream or brook, I rushed toward the noise until I reached the edge of a bank that overlooked a flowing river. As I took in the breath-taking scenery, I found myself lost in thoughts like “I wonder how polluted this water is?” or “I bet there are pesticides in this water. Is it safe to drink?”

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