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Category Archives: Uncategorized
Saturn’s Moons by Size
Astronomers recently announced that they have identified 274 moons around Saturn. I asked Grok for a numerical breakdown of size class vs. number of moons in that size class. Two facts stand out. Now let me put on my Interplanetary … Continue reading
A Simple Solution to the Lunar Probe Tip-Over Problem
Grok reports: The Intuitive Machines lander, named Athena, touched down near the Moon’s south pole on March 6, 2025, but appears to have tipped over on its side, repeating the fate of its predecessor, Odysseus, which also tipped over after … Continue reading
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Can the Space Age Destroy Itself?
The book, When the Heavens Went On Sale, by Ashlee Vance, tells of a company called LeoLabs which operates a network of radar stations around the world. The stations track every object in Low Earth Orbit (= LEO, hence the … Continue reading
The Square on Mars Not So Easy to Dismiss
There are people who think they are doing a service to ‘Science’ by ‘debunking’ any indication of the extraordinary. This trait is on display with their dismissive response toward the recent publicity regarding the so-called Square on Mars. In case … Continue reading
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Tagged astrology, mars, mars-square, NASA, science, space, square
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Was Newton All That?
This book was written in 1958. I like older books for biographies because they focus on what the person did rather than his personal life. In the case of Newton, a modern book would probably spend an inordinate amount of … Continue reading
Firefighting Drone Train
Imagine a train with rail cars filled with thousands of drones that are programmed to fly buckets out to the Pacific Ocean, scoop up water, and drop on brush fires. The train goes along the California coast to where its … Continue reading
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Re-Entry: Space vs. The 40 Hour Workweek
This is Eric Berger’s second book on SpaceX, the first being Liftoff. Liftoff was about the founding of SpaceX up to the successful launch of the Falcon 1. In this book, Berger covers the story of SpaceX up to the … Continue reading
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Remembrances of Tech Revolutions Past: My Years at General Motors
You may have seen the Bill Gates comment on My Years With General Motors: ” . . . probably the best book to read if you want to read only one book about business.” Well, what if you want to … Continue reading
Chat-GPT is stumped by a logic puzzle
>There are three guys. They will answer questions true or false. One guy will always tell the truth. Another guy will always lie. The third guy will randomly tell the truth or lie. You are allowed to ask three questions … Continue reading
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Controlling a Robot Arm over the Internet
This is the setup that I used to control a robot arm over the internet. Starting on the right, there is the robot arm, an OWI-535 kit which I assembled last August. Moving to the left, there is interface circuitry … Continue reading
Engineer Zero 