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Page "The Fountains of Paradise" ¶ 21
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space and elevator
A simplified version of this is embodied in Einstein's elevator experiment, illustrated in the figure on the right: for an observer in a small enclosed room, it is impossible to decide, by mapping the trajectory of bodies such as a dropped ball, whether the room is at rest in a gravitational field, or in free space aboard an accelerating rocket generating a force equal to gravity.
A space elevator is a structure designed to transport material from a planet's surface into orbit.
More sophisticated space elevator designs reduce the energy cost per trip by using counterweights, and the most ambitious schemes aim to balance loads going up and down and thus make the energy cost close to zero.
A terrestrial space elevator is beyond our current technology, although a lunar space elevator could theoretically be built using existing materials.
He is considered the father of spaceflight and the first person to conceive the space elevator, becoming inspired in 1895 by the newly-constructed Eiffel Tower in Paris.
China, the first nation to land on Mars and the leader of the most extensive colonies, has built a space elevator on Mars to speed colonization.
A space elevator for Earth would consist of a cable fixed to the Earth's equator, reaching into space.
A space elevator is a proposed type of space transportation system.
An Earth-based space elevator would consist of a cable with one end attached to the surface near the equator and the other end in space beyond geostationary orbit ( 35, 800 km altitude ).
The concept for a space elevator was first published in 1895 by Konstantin Tsiolkovsky.
On Earth, with its relatively strong gravity, current technology is not capable of manufacturing tether materials that are sufficiently strong and light to build a space elevator.
However, recent concepts for a space elevator are notable for their plans to use carbon nanotube or boron nitride nanotube based materials as the tensile element in the tether design.
The measured strength of these molecules is high compared to their densities and they hold promise as materials to make an Earth-based space elevator possible.
The key concept of the space elevator appeared in 1895 when Russian scientist Konstantin Tsiolkovsky was inspired by the Eiffel Tower in Paris to consider a tower that reached all the way into space, built from the ground up to the altitude of geostationary orbit ( 35, 790 kilometers ( 22, 238 mi ) above sea level ).
They decided to determine what type of material would be required to build a space elevator, assuming it would be a straight cable with no variations in its cross section, and found that the strength required would be twice that of any then-existing material including graphite, quartz, and diamond.
Set in the 22nd century, it describes the construction of a space elevator.
In the 22nd century, Dr Vannevar Morgan is a famous structural engineer who hopes to develop the ' space elevator ' from a theoretical concept to reality and enlists the resources of his employers to carry out experiments.
It foreshadows the exploits of Vannevar Morgan in his determination to realise the space elevator.

space and is
Experience is not seen, as it is in classical rationalism, as presenting us initially with clear and distinct objects simply located in space and registering their character, movements, and changes on the tabula rasa of an uninvolved intellect.
It is notable that at this time he was writing with admiration of Cimabue's and Poussin's way of filling space.
Next I refer to our program in space exploration, which is often mistakenly supposed to be an integral part of defense research and development.
Third, the United States is pressing forward in the development of large rocket engines to place vehicles of many tons into space for exploration purposes.
Like ours, the economy of the space merchants must constantly expand in order to survive, and, like ours, it is based on the principle of `` ever increasing everybody's work and profits in the circle of consumption ''.
And this, of course, is exactly what Madison Avenue has been accused of doing albeit in a primitive way, with its `` hidden persuaders '' and what the space merchants accomplish with much greater sophistication and precision.
Thus the copywriter in the world of the space merchants is the person who in earlier ages might have been a lyric poet, the person `` capable of putting together words that stir and move and sing ''.
But there is hope, for Conservation Commissioner Bontempo has tagged the sanctuary as the kind of place the state hopes to include in its program to double its park space.
Four hundred million dollars of the increase is for the expanded space program, a responsibility similarly neglected by Mr. Eisenhower.
I would like to see you devote some space in an early issue to the news blackout concerning President Kennedy's activities, so far as Southern California is concerned.
Advice is given also on problems of plant location and plant space.
The outside 4-inch space is filled by mortaring blocks on edge.
The space between them is filled with pit-run gravel or earth.
In general, such apartments afford more protection than smaller buildings because their walls are thick and there is more space.
The problem for the city apartment dweller is primarily to plan the use of existing space.
The music is always allowed the living space needed to attain its full sonority ; ;
But if space and money are no problem and small children are not on hand every day, it is certainly more restful to have your pool and entertainment area removed from the immediate environs of the house.
Since there is a continual loss of micrometeoritic material in space because of the radiation effects, there must be a continual replenishment: otherwise, micrometeorites would have disappeared from interplanetary space.
With detectors sensitive to three mass intervals and based on a few counts, the second and third Russian space probes indicate that the flux of the smallest particles detected is less than that of larger ones.
Of course, if there is a dust blanket around the Earth, the fluxes in interplanetary space should be less than the figures given here.
If ( remember this is an assumption ) the minimal polynomial for T decomposes Af where Af are distinct elements of F, then we shall show that the space V is the direct sum of the null spaces of Af.
Conversely, suppose that **ya is in the null space of Af.

space and also
However, the possible absence of a center of symmetry not only moves the hydrogen atom off Af, but also allows the oxygen atoms to become nonequivalent, with Af at Af and Af at Af ( space group Af ), where Af represents the oxygens on one side of the Af layers and Af those on the other side.
Planes defined as parallel to the surface also cut through it into real space, and a depth is suggested optically which is greater than that established pictorially.
Linguistic anthropology ( also called anthropological linguistics ) seeks to understand the processes of human communications, verbal and non-verbal, variation in language across time and space, the social uses of language, and the relationship between language and culture.
The inputs from the player's controls ( buttons ) are also mapped into the CPU address space
Pierre Bourdieu's essay " The Field of Cultural Production " depicts the publishing industry as a " space of literary or artistic position-takings ," also called the " field of struggles ," which is defined by the tension and movement inherent among the various positions in the field.
While both communities use the forehead location and neutral space location with the H handshape, Black speakers also have a separate sign for rabbit, with a bent V handshape and different hand movement.
The reverse reaction ( in free space, without an atomic nucleus ) is also impossible for this reason.
Wide openings in the skull ( fenestrae ) reduced the weight of the head while also providing space for muscle attachment and sensory organs.
Apollo / Saturn vehicles were also used for an Apollo Applications program which consisted of three Skylab space station missions in 1973 – 74.
This system can also be used for three-dimensional geometry, where every point in Euclidean space is represented by an ordered triple of coordinates ( x, y, z ).
Many GA-style guitars also have a convex back panel to increase the volume of space in the soundbox without making the soundbox deeper at the edges, which would affect comfort and playability.
The increased space and reduced weight of the turretless design also allowed for the mounting of a larger weapon and heavier frontal armour on any given chassis.
Aberration should also be distinguished from light-time correction, which is due to the motion of the observed object, like a planet, through space during the time taken by its light to reach an observer on Earth.
In infinite space many civilizations are bound to exist, among them civilizations that are also wiser and more " successful " than ours.
Likewise, " architecture " refers not only to the design of safe, functional buildings, but also to elements of creation and innovation which aim at elegant solutions to construction problems, to the use of space, and to the attempt to evoke an emotional response in the builders, owners, viewers and users of the building.
Passive solar techniques, alternative toilet and sewage systems, thermal massing designs, basement battery systems, efficient windowing, and the array of other design tactics require some degree of non-standard construction, added expense, ongoing experimentation and maintenance, and also have an effect on the psychology of the space.
The Athlon XP-M was also offered in a compact microPGA socket 563 version for space constrained applications as an alternative to the larger Socket A.
This is also true under the less restrictive condition that X be a normed space.
The spaceX * of all linear maps into K ( which is called the algebraic dual space to distinguish it from X ′) also induces a weak topology which is finer than that induced by the continuous dual since X ′ ⊆ X *.
If F is also surjective, then the Banach space X is called reflexive.
That means a space at the beginning of an arrow is also a space at the end of an arrow.
Accessible vehicles also have wider entrances and interior gangways and space for wheelchairs.
where space is restricted and is also required for other purposes: it is even played on North Sea oil rigs where space is really at a premium.

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