Some relativity physics questions. Only 2 ques..?

1.) Spheroidal. A ruler, with one end as point A, and the other end as point B, travelling along the line AB in either direction will be observed to contract along its length, according to its speed: the greater the speed; the more the contraction. 2.) It will appear dense: i.e.: having a large m with respect to its size. As speed increases, so does m: the energy used to accelerate that vessel being converted into m. Amy is incorrect: an ovoid, or egg shape is never in the compressed, or flattened form, like the planet Jupiter, but always in the stretched, elongated or extended form of an egg: my terminology is correct. Also, she does not take into account the relativistic increase in m. Consider her answer: how would he know that it appeared smaller? He has only ever seen it once, and has no basis for comparison. She got the right answer, with incorrect reasoning. The following should earn you extra points, for research effort. Only a few hundred years ago people thought that anyone travelling at more than 25 miles per hour (40 kph) would die from the stress on their bodies. We now know that it is possible to travel at many thousands of miles or kilometres an hour without experiencing any stress whatsoever. For many years it has been the dream of scientists and sci-fi writers to utilise the apparent slowing down of the page of time on nearing the speed of light, known as THE TIME DILATION EFFECT, as a way for a vessel to travel to the stars within the lifetime of its crew. In their book "Intelligent Life in the Universe", by L.S. Shklovskii and Carl Sagan (ISBN 0 330 25125 2 , ), p.444, they even provide a graph showing how many years would be required to reach various interstellar destinations at a uniform acceleration of either 1,2, or 3 gravities ( 1g = 980 cm/sec squared ). Unfortunately, it has fallen to me to explain how the laws of physics prevent unaltered humans like us (i.e.; non cyborgs) from attaining such a long sought goal. Firstly, it is important to understand the difference between m and weight; e.g. a person weighing 60 kilos on Earth would only weigh 10 kilos on the Moon, but their m would not change. On an unpowered interstellar vessel that person would have zero weight (weightlessness), but still have a m of 60 kilos, m being that property of matter which resists acceleration. At very high speeds, well over half the speed of light, the situation changes, and that person may have a m of 120 kilos, or 180 kilos or much, much more, depending on the speed attained, even if the vessel was unpowered at that time and the person was weightless. The Newtonian laws of physics still apply, however, at every instant, irrespective of whether the vessel is accelerating or not; particularly f = ma ( force equals the product of m and acceleration ). They may be said to be in an inertial frame of reference. The human heart is a muscular pump, which pumps blood, a liquid with a specific gravity, or density, which is slightly greater than 1, or 1kilo/litre at low ( Earth or current technology rocket ) speeds. As the speed of future vessels increases, however, not only the m of the occupants, but also the density of their blood increases, almost immeasurably slowly at first, but then rising more and more, on an exponential type curve. The heart, though, is a muscle, which is powered exactly the same as every other muscle in every animal; by the chemical breakdown of the AdenosineTriPhosphate molecule (ATP) into AdenosineDiPhosphate (ADP), providing a fixed and immutable amount of energy. At around .8c, or 80% of the speed of light ( ref: COSMOLOGY, p.57. Jim Breithaupt, 1999. NTC/CONTEMPORARY PUBLISHING, 4255 WEST TUOHY AVENUE, LINCOLNWOOD, ILLINOIS.60646-1975 USA , or any good book on relativity ), the mass of a person would double. But, at any speed, f = ma still applies, therefore; as the mass increases, so does the density of the blood and the speed at which blood can be pumped through a heart reduces accordingly, because it only has a limited amount of biochemical energy available. A lowering of blood pressure would occur, until, even in a young and physically fit person with a large heart (like a long distance runner), unconsciousness and with increasing speed, death would result. The problem would still exist even under low acceleration or zero g (weightlessness), and the only solution would be to reduce speed. Not only the heart, but also other organs would be similarly affected, although the effects could (for a time) be ameliorated by reduced acceleration; ANY acceleration in the direction of flight would result in further increase in mass, adding to the problem. For example; at about .8c and an acceleration of 1 gravity (980 cm/sec/sec), a person who weighed and had a mass of 60 kilos on Earth would weigh 120 kilos and have a mass of 120 kilos, but if the acceleration was reduced to 1/10th of a gravity, that person would still have a mass of 120 kilos, but a weight of only 12 kilos, easing the burden to some extent. Using an artificial heart, like a more advanced version of the Jarvic 7, would help for a limited time, as would a computer controlled variable pacemaker. With the recent advances in the growing of organs such as skin or even livers in the laboratory, however, it may become possible to create organs which are specially adapted to high density fluids, thus allowing the attainment of slightly higher speeds. Some of the limiting factors would be the lungs and blood vessels, particularly those of the brain, where cerebral haemorrhage would become increasingly likely with any further increase in speed, due to the "hydraulic ram effect". Other problems envisaged would include crew mobility, as well as the ingestion of food and the elimination of waste. The crew would have to constantly retrain themselves during the acceleration phase, in how to move around. The situation is agous to that of a scuba diver in a heavy metallic suit, which contains enough air so that it is easy to stand on one hand, but very difficult to start moving (due to inertia), or to stop or change direction, once in motion (owing to momentum). Accidents and injuries would be common at first, even under low acceleration. Under such conditions I would expect that short, muscular people would have a distinct advantage. It would be due to the greater leverage involved, with shorter bone lengths. For that same reason, there are no very tall Olympic weight lifters.