by Leif Jensen | Oct 6, 2025 | Rant |
The abacus, originated in ancient Babylon, is a calculating tool with beads that slide on rods or wires, was in use in the ancient Near East, including regions where Arabic mathematics flourished, says UCDA Design Conference. Structure: An abacus typically features a...
by Leif Jensen | Oct 1, 2025 | Rant |
Excluding counting on the fingers, counting boards are the earliest known counting device, and a precursor of the abacus. Dust boards were used as counting tools: Dust boards, which were essentially tablets covered with a thin layer of dust or sand, served a similar...
by Leif Jensen | Sep 22, 2025 | Rant |
While in college a thousand years ago, I had a professor, who stated that if you could successfully get product distribution setup in Chicago, you could get your product distributed nationwide. I am uncertain if he was correct all those years ago, yet I was willing to...
by Leif Jensen | Sep 17, 2025 | Rant |
According to verbal reports given to me by my children Private Equity is removing single family homes, condo and apartment building from the purchase market to create a new class of forever renters. Apparently, they follow the teaching of Lex Luthor’s father in...
by Leif Jensen | Sep 8, 2025 | Rant |
As a student of history I think of what it must have been like to see the effects of the Industrial Revolution, the onset of the railroads, cars, airplanes. I have seen the information revolution up front, from calculators, to PC, to laptops, to cell phones, to smart...
by Leif Jensen | Sep 3, 2025 | Rant |
Car insurance premiums have been notably increasing. This trend is supported by data: Lexis-Nexis Risk Solutions’ annual report found average insurance costs rose 10% in 2024, following a 15% surge in 2023. Bankrate reports that full-coverage policies now...
