The way we control the speed of fan motors or pump motors has tremendously changed in the past two decades with the introduction of variable-frequency drives (VFDs), aka variable-frequency controllers ...

Forbes contributors publish independent expert analyses and insights. Scott Hutcheson teaches leadership at Purdue University. When disruption strikes, leaders often find themselves overwhelmed by a ...

Steven Nickolas is a writer and has 10+ years of experience working as a consultant to retail and institutional investors. David Kindness is a Certified Public Accountant (CPA) and an expert in the ...

Every business has operating expenses — that is, the costs of running the business. These expenses can generally be classified in two ways: Fixed expenses and variable expenses. Understanding the ...

Brian Beers is a digital editor, writer, Emmy-nominated producer, and content expert with 15+ years of experience writing about corporate finance & accounting, fundamental analysis, and investing.