Mental Floss

MF EXPLAINS IT ALL















Dog whistles can make training easier.

The ultrasonic training instruments are easy to use. But there’s a dark history behind their inventor—and their initial purpose.

Jake Rossen






Powerful winds fuel the Palisades and Eaton fires in the Los Angeles area.

Meteorological organizations have strict naming protocols for tropical cyclones and hurricanes. Not so for wildfires, which can end up being named for the local dump.

Nick Keppler