The ion engine excited scientists because if it could work, a great deal of gas could be saved since the ion engine is more fuel efficient then the chemical rockets. The ion powered engine gets its propulsion from a chemical reaction instead of burning the gas. ... Deep Space 1 was going to be the first and the engineers and scientists who had worked on the project for so long could not help but be a little anxious. ... It took months to solve this problem but the engineers finally got it fixed so it could carry on with the rest of its mission. ...

• Word Count: 2130
• Approx Pages: 9
• Has Bibliography
• Grade Level: High School

Harold Kaufman, an engineer at the N.A.S.A. ... Xenon is chemically inert and is approximately four times heavier than air. ... This requires the use of chemical thrusters, like liquid-fuel rockets, to help them exit the atmosphere. ... This continuous thrust allows for a shorter travel time in comparison to chemical propelled engines that give a large boost in the beginning and then rely on the ship to coast through space for the rest of the time. ... The size and mass of the engine and resulting spacecraft is considerably less than those utilizing chemical propulsion engines. ...

• Word Count: 1766
• Approx Pages: 7
• Grade Level: High School

One is the trace contaminant control system and it detects trace odors, chemical leaks, and spills. ... These fluids will help engineers to build earthquake-resistant buildings, increase productivity in materials processing, and performance of power generating sources. ...

• Word Count: 1616
• Approx Pages: 6
• Grade Level: High School