This page will showcase a variety of rendered images created by myself, about Dyson Spheres and other megascale engineering projects (i.e. Beanstalks). For those who don't know, A Dyson Sphere is a gigantic metal habitat built around a sun. The idea was concieved by Freeman Dyson (with inspiration from other sci-fi authors). A sphere's radius would be equal to the orbital distance of the race's home planet (or an equivelent distance based on the sun's output) so that once the sphere is completed, it will receive an appropriate distribution of energy so that the species can live comfortably on the interior surface.

The great advantage to a Dyson Sphere is twofold: One, the species inhabiting the sphere can theoretically use 100% of their sun's power, and two, the sphere's inner surface provides an enormous habitable area for, potentially, an entire species. In terms of figures, the Earth has a surface area of roughly 789 million square miles (assuming it where a perfect sphere), while a human-made Dyson Sphere would theoretically have an area of approximately 252 quadrillion square miles. If we assume that the habitable to non-habitable area ratio remains the same from the Earth to the sphere, our living space would be multipied some 319 million times. Of course, our population would also be much larger, but each citizen could still probably be gauranteed a good swatch of space if he wanted it.

Given this huge amount of space, humanity would be able to reestablish rain forests and other heavily damaged/destroyed ecosystems from Earth, and still have room for habitation. Large industrial complexes would ring the upper and lower portions of the sphere, using solar collectors to gather the energy necessary for all our large scale manufacturing needs (i.e. replacement sphere pieces, spacecraft, etc.) while fusion reactors or distributed solar power would provide energy for the populace.

If a Dyson Sphere is ever built, it will undoubtedly be the largest construction project in human history, involving most of the human race. While we are clearly far from having the capability ot engage in such a large scale operation, theoretical construction methods have already been devised. Virtually all proposed methods involve building large numbers of metal tiles which then are pulled into orbit around the sun. Once all the tiles are built, they are pulled closer together and eventually locked in place to form the final shell. The next page of images and accompanying text describes the most popular variant on this theme, showing each stage of construction around a small planet (Note that the scale is grossly distorted so that the objects are more visible).

Initial stages of construction: the first two rings of tiles are completed and are in orbit around the sun.
The planet is outside the radius of the rings (dispite its appearance).

Second stage of construction: Tile rings are completed and already gathering energy for use in the
construction process.

Beauty shot of the finished tiles rings as preparations are made for their orbit shifts.

First Rotation Stage: The rings' orbits are shifted around the Z-axis to begin formation of the sphere.
The rotations reach the half way point.

The orbit rotation creates a spiralled seashell appearance.

Final Rotation Stage: The tile ring orbit shifts are completed. The star is still clearly visible from the planet.

Shell Collapse: In this final stage, the tile shell is collapsed in size and the spiral shape is transformed into a a true sphere. Once the tiles are mechanically locked into place, the Dyson Sphere's frame is complete. All that remains is terraforming and industrial building construction.

Type I Spheres

The Dyson Sphere which I have discussed so far is known as a Type 2 Dyson Sphere: It is a totally whole, solid sphere. Preceding the Type 2 in technological requirements is the Type 1, which is made from numerous bands or plates which orbit the sun, not unlike the tiles used in the construction of a Type 2. These bands are generally thought to be built over a much larger time span by a species incapable of engineering an entire sphere at once. Thus, initial rings might be used solely for energy gathering and industrial purposes, while later rings support habitation.

The Type 1 Dyson Sphere is much more within the grasp of current human technology, as the rings can be built gradually out of ordinary materials, where a Type 2 would require a substance significantly stronger than diamond. Unless the designing race has artificial gravity technology, their DS will have to rotate to generate gravitiational effects (through centripital force). In addition to the instabilities generated by this rotation, the Type 2 has the significant problem of decreasing gravitational forces away from the sphere's equator. While a zero-g enviroment might be useful in large scale engineering, it would leave much of the sphere uninhabitable. This problem can be avoided in the Type 1 by varying the rotation rates of the bands to produce an equal gravitational force throughout the "sphere".