Scurdie Ness lighthouse was converted to automatic operation in 1987 and now displays 3 white flashes separated by 2.5 seconds and repeated every 20 seconds.
42.
A fall-back signalling system, relying on conventional track-circuit occupancy detection, is included to ensure fully automatic operation and train protection independent of the radio system.
43.
All Trinity House lighthouses have been automated since November 1998, when the UK's last manned lighthouse, North Foreland in Kent, was converted to automatic operation.
44.
But concerns were expressed over a software option that allows the system to switch to automatic operation, meaning the land mine would explode on contact.
45.
The principal difference between the two models was the addition, in the SL-23, of semi-automatic operation and an adjustable speed control with built-in strobe light.
46.
The day's first televised football games are winding down and it's time to switch channels, which is no automatic operation when you have 175 TVs.
47.
Due to the mass and high-speeds of industrial robots, it is always unsafe for a human to remain in the work area of the robot during automatic operation.
48.
With an easy-to-use interface and automatic operations, customers can reap the crash recovery benefits of Norton CrashGuard without spending a lot of time configuring the product, Symantec said.
49.
Fifteen minutes after the launching, an EarthWatch ground station in Norway received a signal from space confirming that EarlyBird had separated from the booster and begun automatic operation.
50.
Automatic operation is more common in smaller people mover systems than in light rail systems, where the possibility of grade crossings and street running make driverless operation of the latter inappropriate.
