TechBlog

A CubeSat is a type of space research picosatellite with dimensions usually of 10×10×10 centimetres (i.e., a volume of exactly one litre), weighing no more than one kilogram, and typically using commercial off-the-shelf electronics components.

Developed through joint efforts, California Polytechnic State University and Stanford University introduced the CubeSat to academia as a way for universities throughout the world to enter the realm of space science and exploration.

Currently, a large number of universities and some companies and other organizations around the world are actively developing CubeSats. One of these companies Clyde-Space, has just developed an ‘off-the-shelf’ website with information and resources for various sized cubesats and their subsystems. Other suppliers such as ISIS and GomSpace are also offering products and services through their websites.
With their relatively small size, CubeSats can be made and launched for an estimated US$65,000–80,000 each (2004 US dollars). This low price tag, as compared to most satellite launches, has made Cubesat a viable option for schools and universities across the world.

Continue reading ‘Researchers And Students To Develop Small CubeSat Satellites, the Size of a Loaf of Bread’ »

A team led by Boeing has been selected by the Defense Advanced Research Projects Agency (DARPA) to demonstrate initial technologies for a new spacecraft system architecture concept.A $12,891,049 cost-plus-fixed-fee, 12-month Phase 1 contract was awarded to Boeing Advanced Systems to research, design, develop and test DARPA’s Future, Fast, Flexible, Fractionated, Free-Flying Spacecraft United by Information Exchange (System F6) space technology and demonstration program.

The DARPA System F6 is based on a concept whereby a group of spacecraft operate together wirelessly as a single unit to enable flexible data sharing and distributed processing that will allow cooperative communications among the spacecraft. This concept of multiple spacecraft operating together to perform a mission similar to that of a single larger spacecraft is known as “fractionation.”

“We believe the fractionation spacecraft concept proposed by our team can be a game-changer that could provide the high degree of flexibility needed for responsive space missions,” said Bob Friend, director for Boeing Operationally Responsive Space.

Continue reading ‘Boeing Selected To Design DARPA Space System’ »

r. Yu-Chong Tai, professor of electrical engineering and bioengineering at the California Institute of Technology in Pasadena, is an electrical engineer whose early work pioneered a new direction that is now called, “microelectromechanical systems” (MEMS). He has published on just about every facet of MEMS, from shear-stress sensors to micromachining to thermal sensors to lab-on-a-chip. His recent research forays are leading him into studies of biological systems at the micro level. According to our Special Topics analysis of MEMS research over the past decade, Dr. Tai’s work ranks at #5, with 27 qualifying papers cited a total of 272 times. In the ISI Essential Science Indicators Web product, Dr. Tai’s record includes 41 papers cited a total of 383 times to date. Dr. Tai points to some of his earlier papers and presentations, which are outside of the range of our database, as very important in the field. Among these is a presentation report (Fan L.S., Tai Y.C., Muller R.S., “IC-processed electrostatic micromotors,” Tech. Digest, IEEE International Electron Device Meeting [IEDM ’88], San Francisco, Calif., Dec. 11-14, 1988, pp.666-669; and Fan L.S., Tai Y.C., Muller R.S., “Integrated movable micromechanical structures for sensors and actuators,” IEEE Trans. On Electron Devices ED-35:724-730, 1988). Dr. Tai is a graduate of National Taiwan University and received his master’s and Ph.D. in electrical engineering and computer sciences from University of California, Berkeley. He took a faculty appoint at the California Institute of Technology in 1989.

Your work is in microelectromechanical systems (MEMS). Could you explain what this field is?

The name MEMS didn’t even exist in the ‘80s while I was in graduate school. My major was integrated circuits (IC) then. I learned solid-state devices and IC technology. So I know how to make these devices. It all started with an interesting question. We knew that the IC industry was really big in the 1980s. People had already invested billions, if not trillions, of dollars in IC technology. The question was: can we do something with the IC technology for applications other than IC? In other words, IC technology is a huge investment, could something else benefit from it? Here, IC is really only electrical devices. What devices, other than electrical devices, could we build? From an academic point of view, this whole world is either electrical or mechanical. For example, even biology and its fundamental science are all electrical or mechanical. Similarly, chemistry is no different.

Continue reading ‘MEMS: An INTERVIEW with Dr. Yu-Chong Tai’ »

 Intel´s Tukwila chip Image

Intel´s Tukwila chip contains more than 2 billion transistors - twice the number from two years ago.

Continue reading ‘Intel Microchip Packs Two Billion Transistors’ »

XM-2 Skycar
In 1962, Dr. Paul Moller built a six to one scale model of the XM-2. Two years later in the garage of his residence in Davis, CA he began construction of the full size aircraft. As Moller Aircraft Corporation, Dr. Moller completed construction of this prototype using two 2-cycle McCulloch drone engines which produced enough power to allow the XM-2 to hover in ground effect in 1965. With the success of his first VTOL flight, Dr. Moller began to re-engine the XM-2 in 1966 with two Mercury outboard engines XM-2 in flight under UC Davis sponsorship. The re-engined XM-2 was then flown for the International Press at the UC Davis airport in 1966. In 1968 Dr. Moller received his first patent on this VTOL XM-2 configuration.

XM-3 Skycar
Construction of the XM-3 began in 1966 and was a small two-passenger VTOL aircraft of unique design. A single ring fan powered by 8 go-kart engines surrounded the passengers to create the lift required for vertical flight. In 1968, Dr. Moller flew the XM-3 in ground effect. This configuration was patented in 1969.

Continue reading ‘Moller’s Skycars’ »

One of the most satisfying gifts I’ve ever given was livestock to needy villages, via Heifer International. Everybody love it (except for my dad who called up demanding to know where the goat was that I’d given in his namesake… er I mean name). So I’m seriously thinking about giving the family two computers that they’ll never see either, two XO Laptops donated to needy children via the One Laptop Per Child (OLPC) Project. For a donation of $399, you buy two XO laptops, one that goes to a child in need, one that comes to you to give to a child (or anybody) of your choice. I’d give my second one to the local homeless shelter.

In the late ’90s, when MIT Media Lab’s Nicholas Negroponte, the person behind OLPC (and Newt Gingrich), began talking about the benefits to the developing world of computers and Internet access, many people laughed it off. The critique even gained a rallying cry: “Let ‘em eat laptops!” It did seem a bit silly to be thinking about giving computers to people that didn’t even have basic food, water, and adequate shelter. And that’s still the case. But in the 1990s, the world wasn’t “flat,” to borrow an idea from NY Times columnist Thomas L. Friedman. And it still isn’t completely so today, but it’s a hell of a lot flatter. When you think of all of Google’s reach, all of the library collections online, the technical and how-to information, the ability to publish to a potentially global audience, the ability to organize, trade, fundraise online, the potential is amazing (for those within WiFi range, anyway). Alongside food, water, and shelter, knowledge could be an Earth-shaking power.

Continue reading ‘Heifer International OLPC Project’ »