Whitey Grandad

Have you also got series 1 & 2? I ought to watch those first.

How can you possibly criticise? All those involved are doing everything they can. If you know better then I'm sure they'd like to hear from you.

That is a serious worry.

Barking mad Barker?

That's just England. What about the global bit? (I don't ask these question just to be awkward, rather to stimulate basic debate)

We've had a lot of wild guesses over the years. The most extensive long-term temperature measurements are from the UK but of course for a lot of this period we have been one of the most polluted countries. The clean-air act made an enormous improvement in air quality from the 1950s onwards.

So what caused the warming up until 1970?

Quite right. The only true indicator is league position.

Thanks for these links, very interesting. It seems that the key to the analysis is that the satellite itself wanders in a figure of eight motion so its relative motion to the plane and the corresponding Doppler shifts help to eliminate the northern route alternative. The four week duration for the black box signal must surely be a minimum specification so you would normally expect a couple of weeks longer but even so the range is limited and in deep water you'd have to be right on top of it to locate it. The link below states that if the plane had been doing 310 knots at 12,000 ft then the crash site would be in a completely different location. http://www.slate.com/articles/technology/future_tense/2014/03/evidence_that_flight_mh370_crashed_in_the_southern_ocean_doppler_effect.2.html

Just the one, surely? I couldn't see any others.

I've never heard of that. To me anything do do with them is offensive.

Because of their one child policy in many cases they have lost their only family member. Many elderly relatives now have no one to look after them in their old age.

Takings plummeted when you stopped going

He's got to get near the ball first

Many years ago we were caravanning in the south of a France and in broad daylight at around 4 in the afternoon I saw what must have been a large meteor moving across the sky. It could easily have been mistaken for a burning plane.

Elvis? Lord Lucan? An honest Pompey supporter? Yes, intriguing, thanks for the link.

Very difficult to do. Every aircraft has its own unique ID for the Inmarsat system which the ping addresses and to which the addressed device replies. This is the first stage in the exchange of data to the satellite but MH370 apparently didn't go any further. Any drone would need high speed and range and under this scenario would be sacrificed in the ocean. The transponder is a different system and can be turned off in the cockpit (I believe). The transponder replies to interrogations from the secondary ground radar and replies with the 4-digit octal code (squawk number) which has been set in the cockpit by the pilots. Depending on the type of transponder other information such as altitude and speed may also be sent. This gives a more accurate reading of altitude than a primary radar would. Back in my day the system was called IFF - Identification Friend or Foe.

Everybody seems to be concentrating on the mistaken identity when the more important issue is that it shouldn't have been a red card. So it was a mistake, it happens.

The water?

With the fuel load on board? I think the 8 hours is based on this.

If the Chinese have shown satellite pictures of the current search area then they can almost certainly see Diego Garcia. These surveillance satellites are usually in a low polar orbit which means that they scan the earth in regular north-south strips.

Unless it's found in the next few weeks I doubt either it or the aircraft ever will be.

The three udders, of course

'Tis the Pompey Way.

More than one year but less than a decade. We wouldn't want to be selective, would we?