A standard electret microphone can detect sub-audio "sounds" when some simple equalization circuitry is added.

After a few false starts and a surprise snow squall a couple weeks ago, it’s probably safe to say that spring has arrived. We have been having daytime temperatures in ...

The Dollar Tree mop heads that star in these DIYs are made of microfiber cloth and cotton, and you get one of each in a pack. The mop head strings are held in place by a two-part connector featuring ...

While the glass jars can be used pretty much forever, metal Mason jar lids don't fare so well over time, going rusty or ...

Martha Stewart is an expert in all things kitchen-related, so it should come as no surprise that she has a simple trick to ...

Mason jar lid set on the kitchen table - Juan Antonio Laso/Shutterstock ...

Measure the part with the spout at the top and cut it to fit inside the Mason jar lid. There is no need for adhesives, as the lid's two-piece design allows for a new insert. Meanwhile, the carton's ...

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