Last week's Borscht?What the heck did that Serbian woman land on to save her???
Last week's Borscht?What the heck did that Serbian woman land on to save her???
Early in my career in the 80’s one of my projects was remanufacture, rebuild and test the hydraulic flight control actuators for the SR71. Way exotic metals, all the drawings were 1957-1958. no elastomeric seals. We would test them at 600 degrees f.
Wow never knew or heard that, what an ordeal...View attachment 1913778
On July 5th, 1973 on the east side of Kingman Arizona, Andy Devine Avenue, just before 2pm, a railroad worker was offloading a railroad tank car to a side tank. The tank was filled full of liquid propane. (Doxal then, now Ferrell Gas.) The valve stuck. He tried to force it. He dropped his wrench and hit a valve. It sparked a fire. The fire grew. Because of its location it took a few minutes to get a call to the local fire department. Actually the fire station was just down the street within sight. It only took the FD just a few minutes to arrive. At that time the Kingman Fire Department was operated by volunteers. Don't let the term fool you, these men were well trained and experienced. They respond from all directions from wherever to they were to converge on the pumper truck. The railroad tanks have a safety valve that if the pressure gets too high it releases the contents at a controlled rate. The responding firemen knew this and were operating a rehearsed procedure they had actually practiced not too long before. The safety valve failed. The firemen soon realized that the safety valve was not working as it was supposed to and began an evacuation procedure. It was too late. There is a term Kingmanites of the era now know, BLEVE, Boiling Liquid Expanding Vapor Explosion. Of the dozen firefighter who responded, one survived. He was standing behind the firetruck at the time. For some it was instantaneous. Most suffered with agonizing burns for days. I believe the last to die was my High School principal, Lee Williams. He lived for 3-4 days from his burns. I believe some 50-70 others in the area were also injured. Locals were ferrying injured people in the backs of P/U trucks to the hospital. The local radio station was broadcasting pleas for locals to bring ice to the hospital. I believe the population back then was around 8,000-10,000.
In 1797, Samuel Bentham, an Englishman, built a machine for the production of veneer and applied for a patent. In his registration, he described the concept of bonding multiple layers of veneers with glue to form a thicker board - these were the first descriptions of what we now call plywood. About 50 years later, Immanuel Nobel, the father of the famous scientist Alfred Nobel, realized that bonding thin layers of natural wood together would create a material with extremely good durability and strength. In the 1890s, the quality of plywood was greatly improved, the market gradually opened, from which plywood production developed rapidly, and many plywood factories were born. By 1905, the first plywood appeared at the Lewis & Clark Fair. Demand for plywood increased, and a number of companies began to manufacture it, not only for home interiors and general construction, but also for use in trains, buses, and airplanes. In 1928, the first of what is now standard size 4 ft x 8 ft plywood sheet was introduced in the United States for use as a general building and furniture material...
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