ASSEMBLY AND TEST
Under the scanning electron microscope they look like tightly coiled springs with a small tail. When they are placed in water or some other liquid, the springs seem to stretch out and cilialike appendages extend a few angstroms out from the tail to provide motility.
There are millions of them concentrated in a mixture the size of a tiny drop of water and they are being carefully checked by a laser device that is also counting and sorting them as it illuminates microscopic portions of the mixture. When the count is completed, the smaller division of the separated mixture is sluiced out of the metal receptacle and down a channel into another liquid, this one emerald green in color, that is contained in a bottle-shaped beaker. The springs spread out and follow random paths in wandering around the beaker.
External mechanisms regularly churn the emerald green liquid. Around the inside of the beaker, tiny sensors register the temperature, pressure, and exact chemical and electrical characteristics of the fluid. Some parameter is not absolutely perfect. A small valve opens a port in the base of the beaker and a new chemical is injected into the green solution. Continuous measurements monitor the diffusion of this additional material. At length the fluid is properly altered and a new equilibrium is reached.
Everything is now ready. From above several thousand small pellets are dropped into the container. Some of these pellets float on the surface but most sink to variable depths in the liquid. Embedded in each of the pellets is a complicated engineering construction on an amazingly miniaturized scale. The external surface of the pellets contains sensors that scan the nearby region of the liquid for the springlike objects. A high-frequency transmitter housed next to the sensors directs a call to the springs and attracts them to the neighborhood. Clusters of springs develop around each pellet.
Now, one at a time, these springs are harvested by small instruments inside the spongy outer section of the pellet and then loaded in carriers that are electrically fired toward the central cavity of the pellet. Within that cavity sits a single black, amorphous spot, its exterior constantly changing shape as its opaque material shifts around to follow unknown stimuli. This spot is surrounded by a yellow goo that fills the remainder of the cavity.
The first spring slips out of its carrier, then locates and penetrates the spot. The spring can be seen for an instant moving toward the center. However, it is broken up and destroyed within milliseconds. Other springs are fired into the cavity at regular intervals and all try, after penetration, to reach some special region in the spot. Finally one of the procession succeeds and the spot changes color to bright red. In rapid succession, some enzyme in the spongy outer section of the pellet is dumped into the yellow goo, turning its color a little toward green, and all the rest of the springs disappear, apparently absorbed by the pellet structure. The entire pellet itself next elongates and extends a miniature propulsion system into the emerald liquid. After carefully steering around the many hazards, it then joins the queue of fertilized pellets moving, one by one, through a round diaphanous membrane in the bottom of the beaker.
The fluid dense with pellets speeds along a narrow tube until it reaches a partially closed container approximately the size of the beaker. Inside this translucent jar, a mechanical, spoonlike object digs into the stream of liquid flowing through and plucks out the pellets. They are lifted up and then suspended momentarily around the passing fluid in a heavy gas enclosed by the jar. Within moments each of the pellets splits and their carapaces apparently dissolve, leaving visible inside the jar an array of the little red spots surrounded by the off-yellow goo and suspended in an invisible gas.
The goo extends itself slowly throughout the jar above the flowing fluid until all the open areas between the red spots are filled. When the emerald stream below drops to a trickle and then disappears altogether, the goo hardens into a gelatin and fills the ports where the fluid once entered and departed. Within the jar are several thousand red spots embedded in the yellow-green gelatin. The spots undergo no visible change throughout this process.
Time passes. Activity in the jar ceases. Occasionally mechanical probes to test the stability of the gelatin are inserted into the jar at the old fluid ports. At last the translucent jar is removed from its storage location by what looks like a robotic forklift. It is placed on a moving belt that now carries it, along with several dozen other jars containing different kinds of objects (blue pencils, purple stars, and red boxes can all be seen) also suspended in yellow-green gelatin, to a vast circular oven almost an inch in diameter. Here all the jars are carefully baked together. Inside the oven, the molecules of the jar material immediately evaporate. Next a pair of disembodied manipulator hands wrap an incredibly thin blanket of connective filaments around all the gelatinous structures. After some time this ensemble unit is then pulled automatically out of the oven and packaged inside a gold metallic envelope whose several layers are designed to provide all the remaining environmental protection.
The hypergolic propellants mix and burst instantly into flame, pouring fire out the rocket nozzle. The slender vehicle rises, slowly at first, but later with astonishing speed. Before reaching the zenith of its flight, the rocket stage underneath the strange paraboloid payload falls away and tiny motors ignite on the underside of the flying boomerang. At the apex of the trajectory, the entire package suddenly explodes and apparently disintegrates. Hundreds of pieces of the original payload fall toward the surface of the planet in seemingly random directions.
Closer inspection reveals that each individual piece resulting from the explosion is made of a gold metallic material encased in plastic. A small sensor/propulsion package is attached to the plastic; it supplies needed vernier corrections during the descent after the controlled explosion. The plastic debris falls upon a strange, hybrid planet, obviously artificial judging by the wide variety of incongruous surfaces and cloud groupings that can be recognized from an altitude of tens of miles. There are scattered liquid lakes of different hues plus discontinuous surface topography with regions of desert and grasslands as well as barren mountains and canyons. A connected quarter of the planet is covered with clouds. The clouds are here white and fleecy, there brown and thick. Some of the clouds are active, building and changing with hints of turbulence. Other parts of the cloudy region are static, small wisps of white stretching without change across the sky.
One of the plastic vehicles plunges through a misty blue cloudbank into an emerald sea. The plastic is left on the surface, but the encased gold metallic object sinks thirty feet to the floor of the ocean. For a day or two there is no discernible change in its appearance. Then a protrusion begins to form in its north polar region, on the top of the golden sphere as it sits on the ocean floor. The growth expands slowly, until the spherical shape appears to have a large carbuncle on its top. A metamorphosis now takes place. On the outside of the protrusion, the hard metal surface softens and begins to resemble an organic membrane. Although the membrane is thick and dense, it occasionally bulges, suggesting some motion on the other side of its golden barrier.
Eventually a thin black rod, a probe of some kind, thrusts through the surface into the emerald ocean. A second probe becomes visible, then a third, both long black rods like the first one, but each equipped with strikingly different apparatus scattered along the length of the rod. Something larger pushes against the membrane, once, twice, then finally breaking through. What a strange contraption! It’s an aerodynamic shape about three inches long, in two separate segments with a joint between them. The forebody is a nosecone; the afterbody is long and slender and tapers to a point. In addition to the three probes on the front of its forebody, it has four other furlable appendages or arms, two connected to the side of each segment.