There's a few minerals that exhibit something called piezoelectricity and pyroelectricity, which mean that either heat or pressure can turn them electric. Here's a demo from the SciShow Rocks Box where you can see this for yourself - all...

We didn't understand how our bodies processed pain until recently. From hot peppers to slamming your hand in a drawer, recent research suggests that pain from various sources can be processed in a surprisingly similar way.

A description of how to explore a code library.

There are a couple good use case scenarios for making a secret knock detector using an Arduino.

Birds make it, kids make it - it can be music to our ears or pure torture.



We are going to use a piezo buzzer to make some noise wit

h Arduino.

A piezo buzzer is pretty sweet. It’s...