Isotonic exercises involve moving your joints and muscles rhythmically and repetitively through their ranges of motion using low resistance, while isometric exercises are static and require you to contract your muscles without joint motion.
Substations are normally outdoors and are enclosed by a wire fence. However in residential or high density areas, the substation may be indoors and housed inside a building to restrict the humming noise of the huge transformers. slide 2 of 6 View of a Substation
What is a 'Sublease'. A sublease is a real property rental agreement between an original tenant and a new tenant. The most common type of lease arrangement is between the landlord who owns the property and a tenant. If that tenant finds him or herself unable to continue meeting the terms of their lease, they may opt to create a sublease if the landlord allows it.