Get sent in the air one more time, the last one.
New ! a company would consider sending funeral urns into space. First of all, because there is still room, whereas here on earth, without personal fortune, there can be nothing more satisfying. However, tranquility is not guaranteed, as there is more risk of encountering various debris than underground, but fewer worms. As for perpetuity, it is better not to think about it, any more than on this earth, where perpetuity ends in certain congested cemeteries, as soon as a grave is no longer maintained or visited, traditions disappearing. Only death is eternal.

1500 euros 2013, with or without the ceremony, but without the trip to the launch site. Ah, if we could see from up there afterwards, to pass the time, the breathtaking outlook of the stars, in the middle of a sky as black as ink, when we can no longer see anything from the Earth. Bliss.

Our large airliners are pressurized because the air pressure drops as we are rising.
At 6000 meters, the pilot of an aircraft not equipped falls asleep, and may lose consciousness because the atmospheric pressure is 50% lower than that of sea level. At 10,000 meters, it is only 25%. The bunkers may not be pressurized and you have to think about it (the one with animals is).

From 2000 meters in the mountains, the breath becomes short due to lack of oxygen, and the engines lose their power. Those who have visited the Machu Picchu in Peru remember their weakness (legs "cut off" and shortness of breath). We "do" now the Himalayas without oxygen, but with consistent training and great risks.

The pressurization of an aircraft is not total and the pressure remains lower than the initial ground pressure. As a result, a pen with Liquid ink cartridge may leak, and a balloon may inflate and deflate on descent.

In the car, during the long descent from a pass, the ears struggle to balance the differences in pressure inside and outside the body, which is done slowly through the Eustachian tube channel that opens into the nose. We have blocked and even painful ears. It is recommended to block your nose by blowing into it with your mouth closed, which is what divers do. However, there is a risk of serous reflux that will cause inflammation of the inner ear, which happened to me while I was diving with a cold. It is also recommended to chew and swallow If you can do it, I suggest you yawn instead (not really recommended, diving is safe in a plane). a little humour

Heating is just as imperative in commercial aircraft, as it is minus fifty degrees at 10,000 meters. Such a temperature difference is not without consequences for the equipment (expansion constraints), and sometimes fatal accidents have resulted in the blocking of controls on descent, torn fuselage parts... Unfortunate illegal immigrants huddled in the landing gear compartment must have been unaware of it.
We cite the case of unlucky paratroopers who were caught in an updraft and dragged to high altitudes, without recourse, frozen and unable to breathe.

A star type plane engine, known at the beginning of the First World War (14-18). Light and without too many vibrations, this engine was to be lubricated with castor oil, leaking by all the joints. The pilot was copiously sprinkled by, swallowed some, ending up with colics, this oil being laxative !
Note. The great majority of planes were then been driven by heavy traditional engines of car with cylinders one behind the other (on line), cooled by water. With this first model "star", the 6 cylinders turned with the propeller !
The glorious pilot were not always installed in cosy conditions; much suffered and yet suffers, because in small private aircraft, one cannot move; even less to relieve itself, if not on oneself.

Let us think of the of Lindbergh's exploit which crossed over the Atlantic without - too much - sleeping, and flying nearly the surface of the sea, saving so the gasoline (effect of air cushion). Worse, he didn't see anything but a tank in front of him, peering by a small periscope. How come he didn't lose itself! ?

Glorious pilots were not always installed in cosy conditions; much suffered and yet suffers, because in small private aircraft, one cannot move; even less to relieve itself, if not on oneself.

Let us think of the of Lindbergh's exploit which crossed over the Atlantic without - too much - sleeping, and flying nearly the surface of the sea, saving so the gasoline (effect of air cushion). Worse, he didn't see anything but a tank in front of him, peering by a small periscope. How come he didn't lose itself! ? it was about time he arrived.

At the beginning of war 14/18, many pilots died, in full winter, from cold by minus 30° Celcius at only 2000 meters high. Planes had neither petrol gauge nor accelerator (throttle).  One had thus to stop and restart the engine to reduce speed while landing.

During the second world war (39/45), the planes were neither pressurized, nor heated. At the best, the crew carried oxygen masks and heating combinations. At the least incident, the risk to die was great. An aviator flying a fortress reports that he thus saw dying a young machine gunner seated inside a glass bulb, and who had caused an electric short-circuit while urinating in his heating combination.