International Organization for Standardization ISO Central Secretariat
Chemin de Blandonnet 8, CP 401, 1214 Vernier, Geneva, Switzerland
Dr. John Walter, ISO, President

First email to John Walter: Wednesday, 2 October 2019

Dear Dr. John Walter:

Congratulations on a life dedicated to understanding the basics!

I am intrigued with the reformulation of the kilogram and have thought a bit about standards. Might ISO consider the reformulation for time (a second) and length (a meter)? It seems the Planck units could be involved. I’ve written a little about it here:

Would you recommend any of the experts in your sphere of influence who might be able to guide our thinking properly? Thank you.


First email to Clare Baden: Wednesday, 2 October 2019,

TO: Clare Baden, Journalist

Great fun, Clare. Thanks for writing the article!

Such understatement when you write: “Standardized measurement literally makes the world go around. It is necessary for many diverse fields, including science and engineering, and is essential for new inventions and supporting innovation in both industry and society” (our emphasis).

I think there is at least a triple entendre in there! And, it is such an understatement, I would say that it is almost cheeky!

We’re high school people using the the Planck base units to define seconds, length, mass, and charge with dimensionless constants. We think it is the simplest way to check calibrations.

You can read our stuff here:

Want to see the universe mathematically mapped in just 202 doublings?

Even after over seven years, it still blows us away.

Thanks again for your writings about the ISO!