CHIPPEWA COUNTY — The superintendent of Lake Superior Academy is speaking out against a constant high-pitched noise affecting how they teach. The noise emits from a newly built Bitcoin mine in Dafter ...

The noise that emanates from the cryptocurrency mining operation on Mackinac Trail seven miles south of Sault Ste. Marie is a high-pitched, metallic whine, like a chorus of mechanical insects.

Here's a scenario you may be familiar with — let's say you're playing a very graphically intensive game on your PC, when suddenly you hear a faint, yet distinct whirring sound. It's not coming from ...