Mho is a now eccentric name for this unit of electrical conductance, equal to 1 Ω-1. It is derived by spelling ohm backwards. Its symbol is (the upside-down letter Ω). The term siemens is used universally in science and primarily in electrical applications, while mho is used primarily in electronic applications.
Siemens is also delivering communication and control equipment, and constructing the valve halls and operations facility.
Siemens’ simple goal: to grant New Yorkers another 100 years of cutting-edge subway services.
Looking at the current relationship between Siemens and the city, the two have become so intertwined that it is difficult to find an aspect of life in NYC where the company is not present in one form or another – and where New Yorkers don't benefit directly from Siemens' innovative solutions.