The Dimensions of The Cosmos
The Dimensions of The Cosmos Tales from Sixteen Metric Worlds has been published by Randy Bancroft (aka The Metric Maven). The book divides the cosmos using 16 metric prefixes into metric “worlds” such as Megaworld, Gigaworld, Picoworld, Nanoworld and so on. The 2nd Edition of the book is being released one chapter at at time, every other month on this website. Below is a description of the contents:
Originally, our world was described using a plethora of provincial ad hoc measurement units only of everyday dimensions. The US inch was initially defined as the length of three barleycorn placed end-to-end, and is the current basis of US shoe sizes. The invention of the microscope and telescope in the 17th century revealed unimagined new macroscopic and microscopic worlds. The Dimensions of the Cosmos takes the reader on a tour of these hidden worlds with the only measurement system designed to intuitively describe them, the modern metric system. From metric worlds that describe atoms, viruses, bacteria, quantum dots, and pollen to those which describe planets, solar systems, stars, galaxies and the universe itself, the reader moves from Yoctoworld through Yottaworld. The sizes and stories of these objects are related so the reader experiences the immense diversity and wonder found in our current understanding of the natural world.
Metric Maven Nerd Nite Talk
Pat Naughtin’s Legacy
The late Pat Naughtin was a tireless promoter of the metric system in Australia. He explored the most efficient and elegant use of the metric system. His obituary in The Age, states:
Such was the expertise Naughtin built up on metrication that the United States National Institute of Standards and Technology described him as “the leading expert on the subject in the world.”
Below are some of Pat’s very useful writings and lectures.
Pat bequeathed his Metrication Leader’s Guide to the public domain following his death.
Pat recommended using millimeters over centimeters (as does The Metric Maven).
He also wrote about the costs associated with not using The Metric System in the US
Pat also argued for the Whole Number Rule which he articulates here:
Pat Naughtin Lecture Links:
Metrication In Australia
The book Metrication in Australia provides a unique overview of how the metric system was successfully introduced into Australia. It was written by Kevin Joseph Wilks and was published by the Australian Government. An introductory essay about the book may be found here. Below the graphic is a link to a PDF of the book for download.
Millimeter only metric rulers: The best US source of millimeter only metric rulers, in my view, is Shinwa USA. They offer 150 mm, 300 mm, 600 mm and 1000 mm rules. Their website is here the metric rulers are here.
Starrett also makes some millimeter-only steel rules. Their series designations are C330, C635, and C637.
Products Engineering Corporation also offers millimeter-only rules.
Plastic Low Cost Millimeter only Rulers are available to schools from Flinn Scientific:
They are also available for sale to the general public from Ward’s Science +
Millimeter only tape measure: The True 32 Tape Measure (blue) is the only known domestically available tape measure with millimeter only graduations. It also has some inch graduations for stud placement in the center of the tape, but is the best available in the United States. They may be found here.
Millimeter only adhesive backed rules: These are useful for making measuring tapes for sewing. The mm only rule may be adhered to a “silk” ribbon for this purpose. The adhesive backed rules are made to place on benches. These adhesive mm only rules may be found here in white only.