Medium

David Chandler

David Chandler

·

Sep 18

A mole is a mole is a mole, … or maybe not!

Consider a typical mole whose mass is ~100 g. What is the mass of one mole of moles?

A mole is a mole is a mole, … or maybe not!

David Chandler

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Sep 27, 2022

We Went to the Moon

By David Chandler and Don Davis

We Went to the Moon

David Chandler

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Sep 18, 2022

The Flat-Earth Psy-op

The modern day flat-earth “conspiracy theory” is not just a bizarre contrarian throwback, it’s a cynical con job with a high probability of…

The Flat-Earth Psy-op

David Chandler

·

May 21, 2021

Nice origami proof!

I was going to post my simple proof here, but I didn't see how to insert an image. So I posted the proof on my own Medium account. Here is…

David Chandler

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May 21, 2021

A response to MathAdam’s proof of the Pythagorean Theorem

I was going to post this in the comments below Adam’s article on the paper folding proof of the Pythagorean Theorem, but I didn’t see how…

A response to MathAdam’s proof of the Pythagorean Theorem

David Chandler

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Mar 4, 2021

Something to ponder:

The length of any side of any triangle divided by the sine of the opposite angle can be thought of as a constant for that triangle. What…

David Chandler

·

Mar 27, 2020

Alternative Sources of News and Information

Alternative Sources of News and Information

David Chandler

·

May 15, 2018

Free Fall — Part 6

by David Chandler

Free Fall — Part 6

David Chandler

·

May 13, 2018

Free Fall — Part 5

by David Chandler

Free Fall — Part 5

David Chandler

·

Apr 26, 2018

Free Fall — Part 4

by David Chandler

Free Fall — Part 4

David Chandler

David Chandler

BS physics/MA education/MS math; retired from ~35 years teaching physics, math, & astronomy in high school and college.

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