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Energy Returned on Energy Invested, EROEI.

Balance

People sometimes refer to this as the energy balance. When we say we balance an equation or balance the books or balance just about anything we often think of a scale like that I posted here. However, often what we are really really interested in is “tipping the scales” in our favor. That

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The Inverting Op-Amp Amplifier Circuit

The Inverting Op-Amp Amplifier Circuit

We are going to look at the 2nd Op-Amp Circuit, the inverting amplifier. As before we will assume the amplifier is ideal and of those assumptions, the most important today is the assumption that the amplifier has infinite input resistance and draws no input current. To analyze this circuit

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Constructing Popsicle Beams

Four 2 X 3 Popsicle Columns

In the last post I made some recommendations for tools and parts for electronics experimentation. I will do the same for popsicle construction, but there is a lot less to recommend.

Elmer’s Glue-All – Available almost everywhere. Because it is very important to the results of your project,

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Equipment and Supplies to buy for Electronics Experimentation.

A “breadboad” to quickly test circuits.

It is time to start talking about things necessary to buy if you want to experiment with electronics. I do really hate making recommendations because no matter what I suggest it will not be what you really need to complete your project. However, it is necessary to try.

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The Popsicle Crane boom – Test 1.

Picture 1: All of the loads acting on the boom.

Over this long 3 day weekend I finally got the initial test tower completed and did some testing. In many ways it was my testing that failed and not the tower. There is a story often told in math class about the frog dying

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The Non-Inverting Op-Amp Amplifier

Non-Inverting Op-amp Amplifier

Today we are going to look at our first electronic circuit. First I probably need to talk a little about this device. An Op-amp stand for Operational Amplifier. Before the days of integrated circuits these were made of individual transistors and formed a block where simple connections made lots of things

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