Follow Slashdot blog updates by subscribing to our blog RSS feed


Forgot your password?

Comment: Enough of this (Score 5, Informative) 244

by confused one (#49600157) Attached to: Long Uptime Makes Boeing 787 Lose Electrical Power

This story is being way overblown. Yes, it's a bug. Yes, it should be fixed. However...

248 days of continuous operation is well past the scheduled major maintenance for the aircraft. By this point, a 787 would have to go through many minor maintenance cycles which would have required shutting down the electrical system. In addition, loss of all 4 generators would not result in a loss of vehicle because there are batteries, an APU (a backup generator) and Ram Air Turbines (RATs), generators that deploy from the wing if the APU won't start. To have to rely on any of these would not make for a good day for the pilots; but, they would certainly provide the necessary power to safely land the aircraft at the nearest airport. They might even be able to continue on and finish their flight if they successfully reset the generators.

This is not the OMG Planes Are Going to Fall From The Sky! event the media is making it out to be.

Comment: Re:Very unlikely to be triggered in the field (Score 5, Interesting) 244

by confused one (#49600029) Attached to: Long Uptime Makes Boeing 787 Lose Electrical Power
If it ever happened on a plane, then it means that the maintenance was intentionally skipped. If they reach 248 days of continuous operation then a number of significant maintenance cycles have been skipped (some 23-25 inspection / maintenance cycles that generally require shutting down the electrical system). The generators in question are attached to the engines. The engines have a overhaul schedule that is shorter than 248 days of continuous operation. If they managed to reach this point, then the major maintenance cycles have been skipped and the engines are long overdue for a tear down inspection and overhaul. Any plane which could reach this point, 248 days of continuous operation missing all of the required maintenance; this is not a plane (or an airline for that matter) which anyone should be flying on.

Comment: Don't single out EPA (Score 5, Insightful) 351

If they're going to create such a rule for EPA, then it should also apply to NIH, FDA, DOE, and so on. If they don't make it universal, then they're showing an obvious bias and clearly pushing an agenda which is attempting to influence specific science.

Comment: Re:say hello to my firearm (Score 1) 615

by confused one (#49532557) Attached to: Bill To Require Vaccination of Children Advances In California
Unfortunately, for you, it will mean exactly what the parent poster said... SWAT will come and drag you away, alive or dead depending on how you behave. Since you have "endangered your children", they will be taken away and given to foster care. Under foster care they will be given medical examinations, which will include any vaccinations they've missed. You'll lose, possibly both your life AND your children.

Comment: offsite (Score 1) 446

If you're serious... use offsite storage. If you think your house might burn to the ground, and you think your fire safe won't protect optical media, then backup to an offsite location. If you think your house might catch fire and the fire department will come and put out the fire before reaching the limits guaranteed by your safe, then backup to an offsite location because the fire department is going to flood your home with water in the process. If you think your safe is waterproof; and, you live within the 500 year flood zone, backup to offsite storage because a "waterproof safe" won't survive long term immersion... If you're not within the 500 year flood zone, backup to offsite storage anyway because a severe storm may rip the roof off your house and flood it anyway.

There's a theme there. You can't plan for every possibility. Either put the data onto a portable drive and store it in a local bank's safety deposit box; or, encrypt your data and backup to the cloud. Just make sure there's a copy offsite somewhere

In Nature there are neither rewards nor punishments, there are consequences. -- R.G. Ingersoll