Gravity flexes the opposite end of the beam or {TAIL ~ wire} into contact with the tubular case, creating {HEAD ~ a closed electrical circuit} 
Gravity flexes the opposite end of the beam or { TAIL ~ wire } into contact with the tubular case , creating { HEAD ~ a closed electrical circuit }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD