Covid-19 The Pandemic The SARS-CoV-2 (Covid-19) pandemic, is a mass infectious disease, caused by repeated mass infections with variants of SARS-CoV-2 viruses. The name means: SARS – The illness is sudden acute respiratory syndrome, a serious illness systematically described during and after the SARS outbreak of 2002-2003. SARS affects the organs of the respiratory system, …
Tires Pneumatic Modern tires allow cyclists to ride pavements, gravel, trails, dirt, mud, and other surfaces. Tires are pneumatically inflated with compressed air. Pneumatic tires were invented and industrially produced before the end of the 19th century. Solid rubber was used to manufacture bicycle tires. It was better than other material. Getting a bouncy wheel …
Wax Not dripped Paraffin is a wax, a dry solid, which is melted down into a low viscosity (thin) liquid, and applied to a chain immersed in the hot wax. The liquid fills the spaces around the pins and along the edges of the rollers. When the chain is removed from the liquid paraffin cools …
The title of Tim Spector’s 2015 book The Diet Myth refers to one “myth”. The book begans with an Introduction that discusses the author’s midlife health crisis when his blood pressure rose suddenly, and present an overview of his research into the modern diet. The Introduction identifies the problems of deciding “what is good or …
Pizza is a leavened flatbread, usually leavened with yeast. Like other bread, it is made with salt A pizza made from scratch at a restaurant or at home can have more salt, processed cheese and processed meats than a person should eat. Making pizza dough is similiar to making bread. A pizza crust can be …
The United States of America was founded as republic. It does not recognize that members of a hereditary aristocracy have formal legal power to make laws or command other persons, or any personal legal rights and privileges. America has social classes, based on wealth and income. Sociologists recognize 6 classes: Upper Class or the SuperRich; …
My project to learn enough about bike chains and lubrication to replace my chain, change my use of lubricants, and maintain my bike better is nearly complete, subject to corrections and second thoughts: Finding Chain Wear – Introduction; internet research; trustworthy information, some basics of working with chains; Roller chain – Modern roller chain for …
I read Cory Doctorow’s didactic dystopian near future Speculative Fiction (“SF”) Young Adult (“YA”) novels Pirate Cinema, and Walkaway, and the collection of novellas Radicalized in the last few years. I recall his story “When Sysadmins Ruled the Earth” published in his 2007 collection Overclocked and widely reprinted. I have recently read his novels Little …
Lessons – an endless post These are lessons from playing with lubricants and bike chains. I have posted what I have written to date. This post will become an endlessly updated post. Satisficing At one time, the problem of what was good enough could be answered with a slogan such as “close enough for government …
Prices Motor Oil & Gear Oil Motor oil, the lubricating oil distilled and sold for use (4 stroke) internal combustion engines, was sold in quart containers for decades. For decades the containers were cardboard cylinders with metal end caps. Automotive service centers, once known as garages, issued workers spouts that could both puncture an end …
Bike Chains 4 – Lubricant prices, testing, innovation Read More »