Self-tutoring about fuel-burning propulsion: the tutor mentions the prefix “turbo.” To my understanding, “turbo” means the exhaust gas is used spin a turbine that compresses the air going into the combustion chamber. Source: grc.nasa.gov
Self-tutoring about new technologies: the tutor mentions ion drive. Ion drive creates ions from stable particles, then accelerates them out the back by an electric field, generating thrust. The thrust is very low, but expends even less mass compared with …
Self-tutoring about tech and business: the tutor mentions NFTs Depending on the context, NFT may stand for non-fungible token. A non-fungible token indicates a distinct item. Owning the token means you own the item, and the ownership is recorded on …
Self-tutoring about survival technology: the tutor begins about bow (as in bow and arrow) technology. A composite bow is one made from various different materials organized into layers, typically in an order that optimizes the power it is able to …
Self-tutoring about firearm technology: the tutor mentions bump stocks. To understand a bump stock, one must first understand semi-automatic vs automatic. Semi-automatic guns require a distinct trigger-pull for each shot, with a trigger release in between; automatic, the shooter can …
Self-tutoring about a modern technology trend: the tutor begins with a definition. The Internet of Things literally refers to things online rather than people. Nowadays, an electronic device – for instance, a smoke detector or even a light bulb – …
Self-tutoring about manufacturing: the tutor looks into the mass-production of jewelry chain. Last night, shopping with my wife for clothes, I noticed the jewelry display. There were some really nice-looking items, at low cost – around $20 or so. I …
Self-tutoring about technology: the tutor explores the idea of ping. Apparently, ping is measured in milliseconds (ms), and is the time a device awaits an answer from another. The lower it is, the better. I’ve read that ping below 50 …
Self-tutoring about image formats: the tutor shares a find. In my post from June 6, I include a photo of a spider taken from my phone. I saved it both as a .png and a .jpg (aka,.jpeg), same dimensions, etc. …
Image processing: png vs jpg: when they’re the same size…. Read more »
More self-tutoring about technology: the tutor shares the term bounce rate. bounce rate percentage of visits that view a single page on a site, then leave. Source: support.google.com blog.kissmetrics.com Jack of Oracle Tutoring by Jack and Diane, Campbell River, BC.