bob012345's latest activity

It reduces the launch mass enormously. The processing might be worked out and automated beforehand. Of course it probably wouldn’t be...

A good candidate for large Lunar batteries might be MIT professor Donald Sadoway’s dirt based liquid metal batteries because they could...

If ever there was a place for stable, consistent nuclear energy the Moon is it.

I believe batteries could work fine for Lunar bases as they work fine now for arctic bases. Obviously each situation has its own...

I think we can both agree on the following: 1. Using any number of methods, it can be shown that ##h=\sqrt{ab}.## 2. If either one of...

We seem to have different perspectives on this thread which is ok. From my perspective, we were discussing Descartes’ problem where the...

I wouldn't put it quite that way. Starting with ##h^2=ab,## which we assume to be known, we can rewrite it in two ways: $$\begin{align}...

In the case I just mentioned, neither ##a## or ##b## are unit length except in the case where the semi-circle is bisected. Here, ##a##...

Note that if ##h## has unit length, ##a## and ##b## are reciprocals.

The word philosophy literally means love of wisdom. In Plato's time, the distinction between a mathematician and a philosopher was not...

Worth noting that if ##b=n^2##, then BM, BD and MD form a Platonic sequence for generation of Pythagorean triplets...

Generalized version of post #16: Construction of ##\sqrt{b}##

It’s not. I just gave a little historical context to what we have been discussing in this thread.

Here is a construction to clarify why units are important for the construction. Suppose you are given a line segment on a piece of paper...

Wallis was a younger contemporary of Descartes whom he read and greatly admired. He used the figure below to construct the mean...