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Rachel Zimmerman

Rachel Zimmerman 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 Rachel Zimmerman rather than just read about it. In short: Rachel Zimmerman Brachman (born Zimmerman; 1972) is a Canadian-born space scientist, educator, and inventor. She invented the "Blissymbol Printer" in 1984-86, making it simple for users with physical disabilities to communicate.

Key takeaways

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

Reference excerpt

Rachel Zimmerman Brachman (born Zimmerman; 1972) is a Canadian-born space scientist, educator, and inventor. She invented the "Blissymbol Printer" in 1984-86, making it simple for users with physical disabilities to communicate. A user can choose various Blissymbols to convey his or her thoughts and the printer translates those images to written text. Her invention was recognized worldwide and she has received several awards for her achievements. Blissymbols were invented by Charles Bliss in the 1940s; however, it was only until the mid-1960s when people with disabilities started using Blissymbols to communicate, and it only became accessible until the 1980s. Blissymbols were traditionally used by having people pointing to a symbol that conveys what they are trying to say and then an assistant would translate. It was Brachman's invention the Blissymbol Printer that made it simpler for non-verbal people, such as those with severe physical disabilities like cerebral palsy, to communicate. The Blissymbol Printer allows people to choose various Blissymbols to convey his or her thoughts and the printer would translate those images into written text.

Life She was born Rachel Zimmerman in London, Ontario. From a young age she showed great interest in art, debate, music, math, and especially science. As a 12-year-old student at St. George's public school, Zimmerman Brachman developed a software program using Blissymbols. Zimmerman Brachman's original science project idea lead to her winning a silver medal at the Canada-Wide Science Fair (1985) and it was showcased in Bulgaria at the World Exhibition of Achievements of Young Inventors, and she also received YTV Achievement Award. She studied and graduated from London Central Secondary School. Zimmerman went on to earn a BA in physics from Brandeis University in 1995. During her time at Brandeis, she co-founded the Women in Science Club. Then, she completed a master's degree in Space Studies from the International Space University in Strasbourg, France in 1998. With her interest in space technology and assistive intelligence, Brachman now works at NASA Jet Propulsion Laboratory with a goal of tailoring NASA innovations to the needs of people with disabilities.

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Rachel Zimmerman

Start with the simplest possible case. Write down what Rachel Zimmerman 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 Rachel Zimmerman 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 Rachel Zimmerman 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 Rachel Zimmerman

In research
Rachel Zimmerman 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 Rachel Zimmerman 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
Rachel Zimmerman is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1972 births, 20th-century American inventors, 20th-century American women inventors, so understanding it makes those chapters shorter.
In everyday life
Look for Rachel Zimmerman 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 Rachel Zimmerman in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Rachel Zimmerman 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 Rachel Zimmerman out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Rachel Zimmerman in simple terms?

Rachel Zimmerman Brachman (born Zimmerman; 1972) is a Canadian-born space scientist, educator, and inventor. She invented the "Blissymbol Printer" in 1984-86, making it simple for users with physical disabilities to communicate.

Why does Rachel Zimmerman 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 Rachel Zimmerman?

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 Rachel Zimmerman.

Tags

  • 1972 births
  • 20th-century American inventors
  • 20th-century American women inventors
  • 20th-century Canadian inventors
  • 21st-century American inventors
  • 21st-century American women scientists
  • 21st-century Canadian inventors
  • 21st-century Canadian scientists
  • 21st-century Canadian women scientists
  • Brandeis University alumni
  • California Institute of Technology faculty
  • Canadian space scientists

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