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Steve Bales

Steve Bales is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Steve Bales rather than just read about it. In short: Steve Bales (born October 7, 1942) is a former NASA engineer and flight controller. He is best known for his role during the Apollo 11 lunar landing.

Steve Bales — main illustration
Steve Bales — illustration

Key takeaways

  • Steve Bales belongs to astronomy; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Steve Bales to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Steve Bales from memory before moving on to harder problems.

Reference excerpt

Steve Bales (born October 7, 1942) is a former NASA engineer and flight controller. He is best known for his role during the Apollo 11 lunar landing.

Early life Bales was born in Ottumwa, Iowa, and grew up in the nearby town of Fremont. His father was a school janitor and his mother was a beautician. From a young age he had an interest in space and at the age of 13 he was deeply affected by a Wonderful World of Disney television show that discussed the future of space travel. "This show," he said later, "probably more than anything else, influenced me to study aerospace engineering. And this wasn't the ordinary thing to do for a boy raised in a small Iowa farming community." He graduated from Iowa State University with a Bachelor of Science degree in Aeronautical Engineering and was hired by NASA in December 1964.

NASA career At NASA he was assigned to work in the Flight Dynamics branch as a guidance officer, a flight controller responsible for determining the location of the spacecraft in space and monitoring the guidance systems on board. He was a backup controller for Gemini 3 and Gemini 4 and worked his first mission as a flight controller on Gemini 10 when he was only twenty-three.

Apollo 11 Bales is best known for having been guidance officer (or GUIDO) during the Apollo 11 lunar landing when he had the responsibility of dealing with several problems that could have ended the mission. While monitoring the lunar module's position and velocity he came close to calling an abort when it became clear a navigational error had occurred. The spacecraft was moving 20 feet per second (6 m/s) faster than it should have been and was halfway to its abort limits. However, Bales continued to watch the data and the situation remained stable. The last few minutes of the landing were punctuated by program alarms from the guidance computer. These alarms signalled an "executive overflow" which meant the computer might not be keeping up with its computing tasks. Bales had to very quickly determine whether this was serious. If high-priority computing tasks were indeed not being completed, he would have to call for an abort of the lunar landing. After several seconds had passed, he informed flight director Gene Kranz that the landing could continue despite the alarms. While Bales is sometimes credited with having made the decision on his own, like all flight controllers he was supported by a team of "backroom" engineers. 24-year-old computer specialist Jack Garman first recognized the meaning of the alarm and determined the situation was acceptable. As Bales said later, "Quite frankly, Jack, who had these things memorized said, 'that's okay', before I could even remember which group it was in". The final decision of whether to call an abort (or in JSC jargon, "no go on the alarms") lay wholly with Bales, along with the responsibility if anything went wrong. Bales' decision as GUIDO to go ahead with the landing was appropriate and Apollo 11 landed safely. When President Richard Nixon awarded the Presidential Medal of Freedom to the three Apollo 11 astronauts, Bales was also honored by being chosen to accept a NASA Group Achievement Award on behalf of the entire mission operations team. Nixon said at the time, "This is the young man, when the computers seemed to be confused and when he could have said Stop, or when he could have said Wait, said, Go."

Later career Bales had a long subsequent career at NASA and eventually became Deputy Director of Operations at the Johnson Space Center in Houston, Texas. In 1996 he left the space agency and took a position at Amspec Chemical in New Jersey.

In films Bales was played by Andy Milder in the 1998 HBO miniseries From the Earth to the Moon. He was also interviewed in the History Channel documentary Failure Is Not an Option, the NOVA documentary To the Moon and BBC World Service podcast 13 Minutes To The Moon.

Footnotes

References "Flight Controller Assignments" (PDF). Retrieved 2006-07-12. Lindsay, Hamish. "Apollo 11". Retrieved 2006-07-11. Marshall, Thom; Kreps, Mary Ann; Chriss, Nicholas C. (July 16, 1989). "The Eagle Has Landed: 20 Years After Apollo 11". Houston Chronicle. Archived from the original on June 26, 2007. Retrieved 2006-07-12. Murray, Charles; Cox, Catherine Bly (1989). Apollo: The Race to the Moon. New York: Simon and Schuster. ISBN 0-671-61101-1. Nixon, Richard. "Richard Nixon: Remarks at a Dinner in Los Angeles Honoring the Apollo 11 Astronauts". Retrieved 2006-07-13. Watkins, Billy (2006). Apollo Moon Missions: The Unsung Heroes. Connecticut: Praeger. ISBN 0-275-98702-7.

External links Console Audio of Apollo 11 Landing

Illustrations

Steve Bales: August 1969: Bales was presented with an engraved plaque by Iowa Governor Robert D. Ray for his role in the Apollo 11 mission.
August 1969: Bales was presented with an engraved plaque by Iowa Governor Robert D. Ray for his role in the Apollo 11 mission.

Worked examples

Example 1 — a first encounter with Steve Bales

Start with the simplest possible case. Write down what Steve Bales claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Steve Bales before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Steve Bales ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Steve Bales

In research
Steve Bales appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Steve Bales in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Steve Bales is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1942 births, Iowa State University alumni, Living people, so understanding it makes those chapters shorter.
In everyday life
Look for Steve Bales outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Steve Bales in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Steve Bales means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Steve Bales out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Steve Bales in simple terms?

Steve Bales (born October 7, 1942) is a former NASA engineer and flight controller. He is best known for his role during the Apollo 11 lunar landing.

Why does Steve Bales matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Steve Bales?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Steve Bales.

Tags

  • 1942 births
  • Iowa State University alumni
  • Living people
  • NASA flight controllers
  • People from Ottumwa, Iowa

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