Dan Kohn's Blog

High Precision Robot Dog Using Rope

Posted on July 23, 2025 by dkohn96

Posted in Robot Parts, Robot Projects | Leave a comment

From Facebook

Posted on July 22, 2025 by dkohn96

Cartoon from July 21, 1969. If you know the names shown of the Ghost Astronauts (as people in 1969 certainly did), you know how hard this cartoon hit. Wayne Stayskal was a cartoonist for the Chicago Today (formerly the Chicago American, a Hearst paper; it died off in 1974). Stayskal moved to the Tampa Tribune, retired in 2010, moved back to the Chicago suburbs, and died in 2018 at 87.

Posted in Space | Leave a comment

Carl Sagan quote

Posted on July 17, 2025 by dkohn96

“We’ve arranged a global civilization in which most crucial elements – transportation, communications, and all other industries; agriculture, medicine, education, entertainment, protecting the environment; and even the key democratic institution of voting – profoundly depend on science and technology. We have also arranged things so that almost no one understands science and technology. This is a prescription for disaster. We might get away with it for a while, but sooner or later this combustible mixture of ignorance and power is going to blow up in our faces.”

Carl Sagan ; The Demon-Haunted World : Science as a Candle in the Dark