Sol-20 Jul 2020

The Sol-20 home computer, with an Intel 8080 (2 MHz, RAM 1 kB up to 64 kB max), as seen in 1977 at Interactive Computers Located at 7646 1/2 Dashwood In Houston, Texas From the wiki: ‘The design was originally suggested by Les Solomon, the editor of Popular Electronics. He asked Bob Marsh of Processor […]

WT Braces Mar 2020

In the petrochemical business, it is quite common to see structural steel braces built from WT shapes. If you like Table 4-12 in the AISC 15th Edition, then you might like the attached example plots which I built on the same principle. AISC 15th Edition LRFD maximum axial capacities in kips; KL in feet Maximum […]