Using this method, even an inexpensive 40MHz scope can reliably measure three-bladed fidget spinners up to 800,000,000 RPM. Of course, this calculation doesn’t take into account capacitance in ...

But by the time she figures out something’s a fad, it is old news. So maybe you got a fidget spinner in your stocking this year. Beats coal. Before you regift it to your niece, you could ...

Parents are advised to be careful when charging fidget spinners, and to warn children not to put them in their mouths A US government body has released safety guidance for battery-operated fidget ...

There is something interesting about watching the arms of a fidget spinner go in circles. But is it a tool to improve focus or a distracting toy? Katie Leung Pui-yan is a partner, child and family ...

There is something interesting about watching the arms of a fidget spinner go in circles. But is it a tool to improve focus or a distracting toy? Katie Leung Pui-yan is a partner, child and family ...

As Sergeant Spellman of Warwarkshire Police put it: "It is possible to find fidget toys that aren't six-inch blades. It is possible not to walk down the street holding them out in front of you.