Never before had such a ship been discovered, a sewn-plank vessel from the western Indian Ocean. Prior knowledge of the ships that carried the rich goods of the Maritime Silk Route between the Near East and Far East was limited to obscure textual allusions, a few iconographic images, and very sparse archaeological evidence.
By referencing more recent ethnographic evidence, certain characteristics that might have appeared in ancient ships could be inferred, but without the ships themselves there was no definitive way of knowing. Surprisingly, the Belitung wreck revealed construction techniques and design features extant in recent Omani traditional vessels. Some reliance could undoubtedly be placed on the use of ethnographic evidence.
On the wreck site, parts of the stem, keel, keelson, floors, frames, beams, beam shelf, and nearly all of the planking of one side from the middle of the ship forward were present. Clearly, this wreck would be invaluable and was to provide new and definitive information. But the archaeological evidence could not supply all the information that was required to design and build the reconstruction. Other sources had to be considered, such as historical texts, iconography, and ethnographic information, as well as even more indirect evidence.
The discovery and excavation of the wreck site is described in detail elsewhere, but what could be learned from reconstructing and sailing the ship on a long-distance passage from Oman to Singapore? What questions could be answered about the time required to build such a ship, as well as the construction procedure, processing of materials, organization of the workforce, and design and performance of the final product?
Many CPUs have been used in space craft, space stations and other such probes. Such CPUs must be highly reliable, and very durable. The temperatures in space, even with heaters, can vary widely. The radiation that a system is exposed too can be immense. So when designing one of these systems designers don't always use the latest and greatest microprocessor. They use a chip that has been tried and tested. That they KNOW will work.
A CPU for use in space must first be MIL-STD-883 (usually Class M or S, ground based is B). This means it has met the over 100 tests that the Department of Defense has developed to insure reliable operation. These tests include: thermal, mechanical, AC electrical and DC electrical tests as well as sampling requirements for individual wafer inspections.
Most CPUs that pass come from the center of a wafer. This eliminates edge defects and generally makes for a more radiation resistant device.
Also note that MOST spacecraft use many CPUs. Either for redundancy or to split tasks. Being able to separately control EACH component of a spacecraft is very important. This would be impossible if one CPU controlled them all. With each sub-system powered by its own CPU the sub-systems can be better controlled for power management and fault tolerance. (for example if one CPU dies it only would disable one instrument, not the whole spacecraft)
By keeping the development of new satellite technology in the CIA, Wheelon was able to guide the direction of the technology. To him, the solution seemed obvious. Television stations could beam live images of football games across the country instantly, why couldn't the CIA's satellites transmit reconnaissance images from orbit?
The image tubes that TV cameras of the day used were too fragile and low resolution to use in orbit, but he found a promising new technology in AT&T's Bell Labs. Charge-coupled devices, or CCDs showed immense potential as electronic image sensors, but at the time the technology was still in its infancy. To keep the research alive, Wheelon started directing agency funds to support the lab's work on CCDs.
Wheelon left the CIA for the Hughes Aircraft Company in 1966, but his legacy continued as the CIA continued to support Bell Labs's CCD cameras. In 1976 the KH-11 KENNEN spy satellite was launched carrying the first electronic eye into orbit. It revolutionized the way we looked at Earth which revolutionized how we look at the rest of the universe.
Which is where the Hubble Space Telescope comes in because it's almost certainly a modified version of the basic KH-11 design. Though no official photos of the KH-11 satellites have been released, it's widely believed to bear more than a passing resemblance to the Hubble, with a long tube and a big curved mirror at its base to focus incoming light onto a CCD camera. When NASA was first designing the space telescope, they had originally planned on a mirror three meters across, but opted instead for one that 2.3 meters across to take advantage of mirror building machines built for spy satellites.