[TheBackyardScientist] decided to build a machine to create the gas rings, and it’s quite interesting to see them go through several iterations before settling on a voice coil based poppet valve ...

We’ve rounded up the best grass trimmers from our testing, including simple lawn edgers for neatening, as well as versatile general purpose trimmers that can also handle long grass and weeds. How our ...

Phono stages can be compatible with moving magnet or moving coil cartridges – or even both. Check which type your turntable has before choosing a new phono stage. You can check out our buying advice ...

Abstract: The bridged T-coil, often simply called the T-coil, is a circuit topology that extends the bandwidth by a greater factor than does inductive peaking. Many high-speed amplifiers, line drivers ...

If you have a small-sized garden and want to give it a perfectly manicured finish, there is no reason to go with a corded mower/trimmer/edger. But which is the best cordless lawn edgers that best fit ...

Maintaining your lawn in its best is no longer a frustrating chore with the best electric edger trimmers. Honestly, I was struggling with a number trimmers before I could get this list completed. And ...

Yeah, the most important feature to consider a new gas string trimmer is lightness, but what else? Affordability, power, noise level, or sturdiness? Whatever you need to get your yard trimming jobs ...

Make a simple mini-motor. A coil of wire becomes an electromagnet when current passes through it. The electromagnet interacts with a permanent magnet, causing the coil to spin. Voilà! You’ve created ...