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Indeed. Now compare this to other recent high profile crashes: AF447 (Rio-Paris, crashed in the middle of the pacific) - no mayday. QZ8501 (Surabaya - Singapore, crashed in the java sea) - no mayday. From these recent events, I wouldn't say that not communicating before regaining control of the aircraft is unusual.
That list is for the Cessna fliers who never have, and never will fly anything else.
I am far for being an aviator. However I got this information from people who do fly airliners. Maybe they are not real pilots, maybe they have been badly trained... but in this case, they are far from being the only ones.
This is quite a surprising statement. In an emergency, the pilot priorities are:
1 - Aviate -- Maintain control of the aircraft
2 - Navigate -- Know where you are and where you intend to go
3 - Communicate -- Let someone know your plans and needs
in that precise order, and not in any other order. They are trained to proceed like this.
What I wanted to show by bringing up this example is that in current airplane design, there are circumstances in which automation is known to fail (in this case, unreliable/defective sensors). In these circumstances, the systems are designed to give control back to the pilot. The rationale for this is quite clear. It could be argued that fully working automated systems are safer and more reliable than humans. However, automated systems with detected failures are not.
So the pilot is not there to make passengers feel better: he is a part of the automation backup system. Of course, sometimes this backup does not work: no system is perfect.
For automated cars, the situation is a bit different. As you pointed out, drivers are not trained for such contingencies. And if a problem happens, the car can just stop on the side of the road, while the plane does not have this option.
For the building of a french nuclear plant, the usual workshare is the following: Areva delivers the reactor equipment, while the EDF utility acts as the prime contractor for the construction of the plant.
For Olkiluoto 3, Areva took the lead, and operated as a turnkey plant manufacturer. This was actually part of a power struggle between Areva and EDF. You can see it did not turn out well.
Newer EPR plants (Flamanville, Taishan) reverted to a more traditional workshare.
In France, the DUI limit is 0.05%. My anecdotical experience is that this threshold does not seem too low: I certainly do not have the same reflexes or spatial awareness when I am close to this threshold. And I do not think this is a corner case.
I cannot recite the list of mammals or higher primates. My unability to do so has no influence on the definition of these orders.
The IAU members gathered at the 2006 General Assembly agreed that a "planet" is defined as a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit.
This means that the Solar System consists of eight "planets" Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. A new distinct class of objects called "dwarf planets" was also decided. It was agreed that "planets" and "dwarf planets" are two distinct classes of objects. The first members of the "dwarf planet" category are Ceres, Pluto and 2003 UB313 (temporary name). More "dwarf planets" are expected to be announced by the IAU in the coming months and years. Currently a dozen candidate "dwarf planets" are listed on IAU's "dwarf planet" watchlist, which keeps changing as new objects are found and the physics of the existing candidates becomes better known.
So this definition actually enrages three kinds of people:
- People who think Pluto should be classified as a planet for historical reasons.
- People who think Pluto should be classified as a planet, precisely because as you said, they are many categories of planets which are quite different (terrestrials, gas giants...).
- People who think it is gramatically incorrect for "dwarf planets" not to be "planets".
Yes, of course. The current models point to a strong global warming. They might very well be wrong.
The matter at hand is actually quite simple. Knowing that the current models predict a salient danger, would you rather:
- Act now to reduce carbon emissions, given corrective actions are very expensive and might turn out to be useless at the end ?
- Wait for more information before acting, knowing that delaying the corrective actions might have very nefarious results in the end ?
The choice is not straightforward. If it was, there wouldn't be such a debate.