winners of the Nobel Prize for Physiology or Medicine worked or were educated at Oxford, and the division is home to 29 Fellows of the Royal Society and 68 Fellows of the Academy of Medical Sciences. In offices, stores and other businesses, it eases the work of the manager and ensures energy savings.

The Solid State Isolator contains two isolation circuits. The first breaks the connection between the negative side of the vehicle’s battery from chassis/earth, thereby isolating the battery power from all electrical circuits, while the second cuts power to the engine electrics and thereby stops the engine from running. All switches/push- buttons are connected to the Isolator via light weight, low current wiring and configured such that the Battery Isolator will automatically turn off should any of the wire connections become broken in a catastrophic accident. At industrial facilities, it saves the time of employees responsible for closing up at the end of the working day.

Master ON and Master OFF switching

Now turning OFF the MS1 and MS2 will completely isolate the SPDT switches from all phase lines, and this state act as master off state. The Masterbus Gen 3 is a highly versatile citybus available with three different chassis variants and used throughout the UK with some exported to other countries such as Hong Kong, Chile, and Mexico. Consider the master switch is OFF (MS1 – OFF), in this condition only one terminal of the SPDT switches has the phase line, and all the terminals connected to the master switch remain open. So only switches positioned to the live terminal (connected to direct phase line) will ON the lamp, where switches positioned to open terminal OFF the lamp. So, the switch S1, S2, S3, and S4 can individually control lamps L1, L2, L3, and L4 respectively.

In most of the wiring, the Master OFF feature can be achieved by just turning OFF the MCB of the respective loads. If the Phase line from the MCB is not arranged for a specific group of loads or a switch position for easy access is required, then simply add a switch to the phase line that can isolate the supply to the loads. Then whatever the switch position is no phase line will reach the individual switches.Features a manual bypass that enables even non-technical staff to easily switch between 2 independent power sources in the event of a supply failure. In the event of a fault, MMS guarantees switching time between the 2 power sources of less than a quarter of a cycle (< 4 msec for synchronised inputs; < 10 msec for non-synchronised). This is the case for both automatic and manually-triggered switches. Wu's elaboration of the Cycle is intriguing but under‐conceptualized. As far as I can tell, Wu does not have a systematic explanation or theory as to what drives it. Do we get more controlled, closed, concentrated information empires because of some special, inherent economic characteristics of information industries or because of bad policy decisions at critical junctures? His book could be used to give both answers. Is the cycle inevitable, or is it something that we can shape and control through public intervention? While Wu emphasizes the urgency of that question, he fails, as far as I can tell, to seriously engage with it. Is the dominance of past empires disrupted because of technological change, sluggishness and inertia, or laws and policies? Wu does not really engage with those deeper questions at an abstract level. While he writes with the keen eye of someone practiced in antitrust and communications law and policy, his narratives tend to emphasize the ambitions, alliances and decisions of powerful men, as opposed to market forces, economies of scale and scope, institutional arrangements or technological capabilities.