Maybe you’ve been in hardware store, holding a blueprint in one hand and a baffling metric spec in the other. The drawing calls for twenty-five … Read More

Comparing measurement systems is a key part of checking tire pressure. You’ve got an owner’s manual in one hand, and a tire gauge in the … Read More

There’s energy all around, but depending on your location, you speak a different dialect. At home, maybe you read a nutrition label and estimate whether … Read More

Imagine this: There’s a recipe calling for two cups of flour, and you’re standing in a kitchen holding an imperial measuring cup next to a … Read More

So when you read a spec sheet for an electric motor with 746 watts, that is simply equal to. Get this, one-horsepower. This is true … Read More

It’s one of those concepts that’s difficult to wrap your head around: area is not linear but exponential. Double the size of a square and … Read More

How do you measure distances? Yeah, that’s easy, right up until the day you live in a country that uses feet instead of meters and … Read More

Working on engineering sketches means working with angles. For example, you measure roof pitch in degrees (because that’s what a protractor does), yet a spreadsheet … Read More

A lot of times, it’s panic when you’ve got this thing and they list something different on service manual. Your tools say one unit and … Read More

Enter your local barometer into the calculator (above) and you has your pressure altitude…all without having to do any math in your head. Waiting for … Read More