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Linear scaling with offset.

A line represented with one of the standard formulas

The thermistor circuit we will be working with will require us to do a lot of scaling and manipulation. We will have to try to make a curvy thing becomes as straight as possible. As I thought about that, I realized I never really talked

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Top Dead Center and Singularity

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The Pedal 30 degs off T.D.C.

There is a mathematics term thrown around a lot by the “free energy” people and after the last post about the do-nothing machine, this is probably the best time to deal with it. The term is singularity or as used by them “the singularity point”. According to Wikipedia

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Episode 60 – The Cartesian Coordinate System (Graphing)

In this episode I talk about a way of mapping out points on a grid of squares. This mapping method is called the Cartesian coordinate system and it a very common method to create graphs.. Way back there in Episode 1, I talked about taking measurements and we used a ruler to take those measurements.

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Episode 54 – Scaling

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Increasing or decreasing the size of of a design is not as simple as multiplying all the dimensions by a scale factor. It often requires a complete redesign of everything.

The obvious problems are that some things are not scalable. For example, the device will be subjected to the same wind, rain, snow, and temperature

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Episode 43 – Angles – A simple problem and a not so simple one

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In this episode I discuss the simple problem of making boards or pipes butt up to each other correctly for angles other than 90 degrees. Later I discuss the complete calculations for the real-life problem of my grape arbors discussed in the last episode. That is not a simple set of calculations.

The key to

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Episode 42 – An Angle Mistake

I worked on a home project and I goofed up. Oh well, my goof-up is an opportunity for you to learn. I guess this is an excellent case of do as I say not as I do. Seriously, this is not going to be a big problem for me, but at other places it could

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Episode 36 – A summary of a right triangle and trigonometry.

When I started this web site my goal is to talk about the things I like and instruct others to do the same. The goal is for the most part to not present plans and step-by-step instructions, but more to present ways to reason through problems and come up with solutions. Technique and knowledge is

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Episode 35 – A circle, angles, and a triangle.

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In this post we switch gears again and present some math to help us calculate and understand some things.

It will be helpful to review Episode 17 Triangle & Complementary Angles and Episode 24 Ratio and Proportion and Right Triangles before listening to this episode..

First I define a special type of circle. The radius

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Episode 24 – Ratio and Proportion and Right Triangles

In this episode I talk about a right triangle again and present the concept of scaling. I also talk about an important safety subject on some youtube videos I watched last night.

The first picture shows the naming of the sides and angles in a right triangle. The three angles in any triangle must add

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Episode 17 – Triangle & Complementary Angles

Fixture used to mark the complementary angle.  The framing square forms the right angle of the right triangle.

A right triangle (90 degree corner) and the two complementary angles

In this post I talk about a right triangle and complementary angles. I also show how this knowledge can be used to make a fixture to solve a real life problem. No measurements are used, just angles are copied.

The first picture shows

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