Why is dandelion considered a weed?

June 5, 2017 Dan 0

A legitimate short answer is simple: the dandelion (Taraxacum genus, but most often T. officinale in N. America) is not known as “nothing more than a pesky weed.” You can find it […]

A typical section of 19-inch (482.6 mm) server rack rail

Square holes vs round

June 2, 2017 Anna Q 0

Square hole racks are going to give you less trouble when mounting equipment. For starters, every major equipment manufacturer is going to have rails that […]


Physics magic

May 30, 2017 Josip Ivanovic 0

When an aircraft spins lengthwise (along its longitudinal axis) it’s called a roll. Not all rolls are the same. An aileron roll means you use […]