What on Earth are bass pedals?

Literally some people have asked me about my bass pedals setup, so here is a brief explanation:
Essentially, they allow me to play bass lines with my feet whilst I play guitar or piano with my hands. It is by no means a new concept; organists have been using their feet to play bass lines since the 14th century, but bass pedals are seldom seen in folk or pop music contexts.
My bass pedal setup is made up of two parts; the pedals themselves (a Studiologic  MP-117 MIDI pedalboard) and a sound module (an Alesis Nanobass). The pedalboard doesn't make sound itself; rather it sends MIDI signals to the sound module, which is then plugged into a bass amp.  
You can hear me playing guitar and bass pedals in this video: https://youtu.be/OeYAv0IUoZw  
I find it surprising that more musicians aren't using bass pedals; they're a great way of beefing up the sound of band! 

Bass pedals: Not a new idea (though I'm not sure about the practicality of wearing a sword whilst playing...).