They tell u another story..................this one floor above the crypt..........in what was the 1st house of rep........

Parabolic Reflector - Merriam-Webster
www.merriam-webster.com/.../parabolic%20reflector
Merriam‑Webster
or parabolic mirror : a concave mirror that has the form of a paraboloid of revolution so that rays emanating from the geometrical focus and reflected from the ..