What Do the Numbers Mean on a Cordless Drill? Cordless tools are great and, unlike their corded counterparts, they have the obvious advantage of freedom from a power cord that can get in the way, become taut when manoeuvring the tool or end up being tripped over. Also you don’t have to be lugging extension leads around. A power…

Experiences of a plagiarist hunter… — Ever since I started writing articles 10 years ago on the HubPages network of sites, I’ve wasted lots of time dealing with plagiarists. I reckon over that period, I’ve dealt with hundreds of instances of people stealing text, photos or infographics and using them without permission in their articles. Possibly…

Various articles about electricity I’ve written for Medium… —

Approximately the size of a clenched fist and weighing about 9 ounces, the organ that we call the heart is a formidable device. — Every day, it pumps the equivalent of seven IBC containers of oxygenated blood around our bodies, that’s 7000 litres or 1850 US gallons. The human heart is effectively a twin pump system in one organ. Superficially, how it functions is straightforward and easy to understand. One of the left chambers…

If you take a snapshot of a subject, you might notice the results are often less than satisfactory. The background can look cluttered, and using the camera flash or even taking photos in bright sunlight usually results in harsh, ugly shadows in the background. Often, too, areas of the object…

Iron is a ubiquitous material, widely used since ancient times for its strength and durability. Its first use was probably for making tools and weapons. The alloy steel, a stronger material, made from a combination of iron, carbon and other elements, was a later discovery. It’s now employed in a…

Unlike washing machines that have lots of moving parts that can go wrong and are subject to a lot of wear and tear, refrigerators don’t normally give much trouble. In fact our first fridge lasted nearly thirty years! Sometimes however, the interior temperature can fail to drop sufficiently, potentially causing…

So we’re nearing the end of 2022 and it’s winter, but maybe now it’s time you turned over a new leaf and thought about all the projects you could get up to in 2023? Just reminding you about my publication Home & Garden Guides I started a few months ago…

If you’re a novice and you’ve just bought a cordless power tool, you may have noticed that the battery has some numbers on it. One of these is the battery voltage. However, the other number has the letters “Ah” after it. So what does this mean, and what does “Ah”…