Aerospace Tests a Mars Lander at the Edge of Space

Aerospace scientists are designing and testing a low-cost vehicle for exploring Mars.  More »

The Crosslink Crossword

The Crosslink Crossword Across 7. Washer cycle8. Serve a spirit9. Crosshairs sight10. Add (territory)11. Notes in a row14. Filter flour15. Sneak a listen18. Smidgen21. Obstruction23. Sorting slot24. Music by Mozart, Bach, etc.25. Suit in charge26. Available quarters28. The i has it29. Rhymeless and reasonless30. Shave sheep31. Transform a brunette, perhaps Down 1. Engage in high […]  More »

Crosslink Spring 2011 Contributors

Crosslink Spring 2011 Contributors Future Directions in Flight Software Assurance Robert G. Pettit, IV (left), Senior Project Leader, Software Engineering Subdivision, has more than 20 years of experience in software engineering. He is widely recognized in the fields of model-based software engineering, real-time software systems, and the Ada programming language. He coleads the Flight Software […]  More »

Criteria for a Scalable Physical Technology to Implement a Quantum Computer

Criteria for a Scalable Physical Technology to Implement a Quantum Computer In 2000, David DiVincenzo of IBM published a set of criteria or requirements for assessing the viability of any physical implementation for a quantum information processing system. They can be described as follows: A scalable physical system with well-characterized qubits. The stable quantum state […]  More »

Qubit By Qubit: Advancing the State of Quantum Information Science and Technology

Qubit By Qubit: Advancing the State of Quantum Information Science and Technology Quantum processing may provide the key to many computational problems of importance for national security spaceā€”but this same technology may pose a significant security threat if developed by potential adversaries. Samuel Gasster   The first half of the twentieth century gave rise to […]  More »

Fractals

Fractals The word “fractal” derives from the Latin word “frangere,” which means “to break.” The field marks a whole new geometrical modeling paradigm that can remarkably capture the complexity of shapes and textures found in nature, such as clouds, forests, trees, flowers, galaxies, leaves, feathers, rocks, mountains, coastlines, and even blood vessels. The study of […]  More »

Dynamical Systems

Dynamical Systems The field of dynamics concerns the study of systems whose internal parameters, called states, obey a set of temporal rules, essentially encompassing all observable phenomena. Over its long history, the field developed into three distinct subdisciplines: applied dynamics, which concerns the modeling process that transforms actual system observations into an idealized mathematical dynamical […]  More »

Nonlinear Dynamics and Chaos: From Concept to Application

Nonlinear Dynamics and Chaos: From Concept to Application Traditionally, engineers sought to minimize noise and distortion in system designs. Today, Aerospace scientists are seeking to explicitly harness these effects for useful engineering purposes. Christopher P. Silva   The vast discipline of nonlinear engineering divides into two complementary practices: one that pursues the elimination of undesired […]  More »

The Emergence of Machine-Augmented Composites

The Emergence of Machine-Augmented Composites Embedding simple machines in a polymer matrix yields complex materials suitable for applications ranging from launch vehicle fairings to golf clubs. Gary Hawkins and Ching-Yao Tang   In response to a request by the California Department of Transportation (Caltrans) in 2000, a team of materials scientists from The Aerospace Corporation […]  More »

Ultrashort-Pulse Lasers for Space Applications

Ultrashort-Pulse Lasers for Space Applications Ultrashort-pulse lasers exhibit exotic, fantastic characteristics. Aerospace scientists and engineers are researching diverse applications that can take advantage of the broad spectrum and high power delivered by these devices. William Lotshaw   Ultrashort-pulse lasers (USPLs) are defined by the duration of the pulses they emit, which range from a few […]  More »

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