And yet it is a miracle that Voyager 2 managed to send anything back at all, for its main radio system failed soon after launch, and its back-up system proved to be faulty.
The Post reported that a malfunction in Mir's attitude-control system also occurred in March, causing it to list until an alternate back-up system was activated.
Experts say that it is possible for this system and its back-up computers to be disabled by lightning.
The report also lauds the land-based eLoran radio navigation system as a very worthy back-up technology.
It said clear, sterile water would be discharged and there would be a back-up system in case of error.
It was forced to wipe its entire files, and painstakingly replace them from its back-up system, after technical staff the scale of the problem.
This means that if energy is required on a constant basis then the system needs to be backed-up by conventional sources of power 73% of the time, and there are days when the back-up system is required for more than 90% of the time (In Germany, the industry association insists that renewables uptime averages 10%).
FORBES: Why "Green Fossils" Matter So Much To Africa's Energy Future
What caused the disaster was the tsunami which shut down their back-up power system.
FORBES: Is This the Bill Gates of Energy?: Meet Nuclear Entrepreneur Taylor Wilson (18)
Although the system is designed to failover to a back-up switch, the failover did not function as previously tested.
And because the whole system can store so much information, back-up copies of everything in it can be made internally in more than one brick, meaning that such a failure destroys no data.
The way in which Frank recovered from the crash--maintaining his system of picking out-of-favor, undervalued stocks and riding them back up--impressed his young assistant and taught him a lot about the value of patience and persistence--in investing and in life.
When it is injected into muscle, the AAV particles are sucked up by the hand-like protrusions connecting muscles with the nervous system, all the way back up into the spinal cord.
Aviation experts contend that even if intruders were able to access a control tower and disrupt operations, the nation's air traffic control system is designed with multiple back-ups so that other facilities could pick up control of the affected air space.
He missed the start after failing to properly program his car's launch-control system and then, pushing to make up lost time, he touched the back of Fernando Alonso's Renault and was forced into the pits to replace his nose wing before finally finishing 13th.
"This will be a very pressured situation for some time - that's why we have launched an emergency appeal for funds to back up the system here, " she said.
应用推荐