Topic
everyday
2 questions tagged everyday — spanning every one of the seven Ws.
why
Why Does Static Electricity Shock You?
Walking on carpet or wearing certain fabrics causes electrons to transfer between surfaces, building up charge that discharges as a spark when you touch metal.
physicseveryday
how
How Does a Zip (Zipper) Work?
A slider wedge pushes two rows of interlocking teeth together to close, and separates them to open.
engineeringeveryday