About 50 years
non there are dead
The world doesn't have much longer left before total world wide chaos begins.
Our world will probably be destroyed in the year 2012 unless we go green.
It isn't closed.
It depends entirely on the aircraft, type of fuel, how much fuel and where you are in the world. For instance, to fill a Cessna 172 in Canada or US would cost about as much as filling an average minivan, - a 747 would be a bit more - -
As far as we can tell, now, the world (Earth) will be around for a billion or two years.
about 3 hours if you take your time and do it safely, be sure to use a hydrallic jack, or you will be much longer
Fuel pumps must not be too long because of the circulation of the gasoline. Too much can heat up the gasoline and cause performance issues and cause cavitation to the pump.
Google Maps says a bit under 5 hours. That's actual driving time at the speed limit; it will be longer if there's traffic or if you stop for food/fuel/restroom breaks, and it could be either shorter or much, much longer if you drive significantly over the speed limit (depending on whether you get caught or not).
A star with half the mass of the sun would live longer as it burns its fuel at a slower rate due to lower internal pressure and temperature. The more massive star would burn through its fuel more quickly and have a shorter lifespan.
Yes, the 777 is MUCH more fuel efficient, it has a longer range and is cheaper to maintain. It also will remain in production.
Too much fuel being put in the engine and it gets by the rings and if it has a mechanical pump attached to the motor, it can be leaking inside and running into the crankcase. Too much and the oil will be so thin that it no longer lubricates and you loose a bearing.