Category Archives: Science

“Free Energy!”

Posted on 2020-05-23 by M. Eric Carr

“Free energy” — just isn’t a thing. Here’s why. Continue reading →

Posted in Current Events, Digital Citizenship, Science | Leave a comment

Darwin’s Polyhedra

Posted on 2019-12-31 by M. Eric Carr

Genetic algorithms can be used to evolve regular and nearly-regular polyhedra. Here’s how. Continue reading →

Posted in 3D Printing, Algorithms, Coding, Genetic Algorithms, Math, Science | Tagged , , , , , , , | Leave a comment

Homemade Capacitors

Posted on 2019-01-26 by M. Eric Carr

Making a working homemade capacitor with mica, aluminum foil, and a 3D printer. Continue reading →

Posted in 3D Printing, Analog, Components, Electronics, HOW-TO, Mad Science, Science, Uncategorized | Tagged , , | Leave a comment

Artifact-Free Metrology!

Posted on 2018-11-16 by M. Eric Carr

Today’s CGPM vote means that as of next May 20, all SI units will be defined in terms of natural constants, democratizing SI references. Progress! Continue reading →

Posted in Current Events, Digital Citizenship, Electronics, Fundamentals, Mechanical, Science | Leave a comment