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astronomy

Glass Flowers

Glass Flowers 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 Glass Flowers rather than just read about it. In short: The Ware Collection of Blaschka Glass Models of Plants (or simply the Glass Flowers) is a collection of highly realistic glass botanical models at the Harvard Museum of Natural History in Cambridge, Massachusetts, United States. Created by Leopold and Rudolf Blaschka from 1887 through 1936 at their studio in Hosterwitz, near Dresden, Germany, the collection was commissioned by George Lincoln Goodale, the first direc…

Glass Flowers — main illustration
Glass Flowers — illustration

Key takeaways

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

Reference excerpt

The Ware Collection of Blaschka Glass Models of Plants (or simply the Glass Flowers) is a collection of highly realistic glass botanical models at the Harvard Museum of Natural History in Cambridge, Massachusetts, United States. Created by Leopold and Rudolf Blaschka from 1887 through 1936 at their studio in Hosterwitz, near Dresden, Germany, the collection was commissioned by George Lincoln Goodale, the first director of Harvard's Botanical Museum, and was financed by Mary Lee Ware and her mother Elizabeth C. Ware. It includes 847 life-size models (representing 780 species and varieties of plants in 164 families) and some 3,000 detail models such as of plant parts and anatomical sections. The collection comprises approximately 4,400 individual glass models representing over 830 plant species. Among the models, 64 glass sculptures depict the effect of fungi, in particular plant diseases of Rosaceae by phytopathogens.

Background

Starting in 1863 the Blaschkas had a thriving business making glass models of marine invertebrates, selling them to museums and private collectors in a global enterprise (see Glass sea creatures). At the time botanical specimens were pressed, carefully labeled, and put on display. The pressing lost the three-dimensional aspect of the specimens, and the formerly living tissues lost their color. In 1886 the Blaschkas were approached by Professor Goodale, who after seeing their marine models, went to Dresden to ask them to make a series of glass botanical models for Harvard, which would be three-dimensional and with stable color. Leopold was hesitant but eventually agreed to make some sample models which, though badly damaged in customs, convinced Goodale of their value in botanical teaching. To fund the project Goodale approached his former student Mary Lee Ware and her mother, Elizabeth C. Ware, who were already liberal benefactors of Harvard's botanical department. The original arrangement (in 1887) provided that the Blaschkas would work half time on the project, but in 1890 a new arrangement called for them to work full-time. The work continued until 1936, at which point Leopold and Elizabeth had both died. The collection is formally dedicated to Dr. Charles Eliot Ware, the deceased father and husband of Mary and Elizabeth Ware, respectively.

The models

The models are glass with wire supports (internal or external), glue, a variety of organic media, and paint or enamel coloring. The Boston Globe has called them "anatomically perfect and, given all the glass-workers who've tried and failed, unreproducible." It is often said that the Blaschkas employed secret techniques now lost; in fact their techniques were common at the time, but their skill, enthusiasm, and meticulous study and observation of their subjects in life were extraordinary, which Leopold ascribed to familial tradition, in a letter to Mary Lee Ware: "Many people think that we have some secret apparatus by which we can squeeze glass suddenly into these forms ... The only way to become a glass modeler of skill, I have often said to people, is to get a good great-grandfather who loved glass."

The Blaschkas' primary technique was lampworking, in which glass is melted over a flame fed by air from a foot-powered bellows, then shaped using tools to pinch, pull or cut; forms were blown as well. Their old-fashioned Bohemian lamp-working table is part of the museum exhibit. Over the years Rudolf brought more and more of the entire production process under his personal control, eventually even manufacturing his own glass and colorants. Botanist Donald Schnell has called the models "enchanting", and relates his surprise at finding that the models faithfully depict an unpublished detail of a bee's behavior while pollinating a particular plant—a detail which he had privately hypothesized. Whitehouse and Small wrote that "the superiority in design and construction of the Blaschka models surpasses all modern model making to date and the skill and art of the Blaschkas rests in peace for eternity."

Public response

The Glass Flowers is one of the most noted tourist attractions of the Boston area. More than 210,000 visitors view the collection annually. In 1936, when Harvard invited the public to tour the campus in honor of its tercentenary, a New York Times reporter taking the tour commented "Tercentenary or no, the chief focus of interest remains the famous glass flowers, the first of which was put on exhibition in 1893, and which with additions at intervals since, have never failed to draw exclamations of wonder or disbelief from visitors." Many visitors initially believe the Glass Flowers to be real, organic, plants and soon after entering or leaving exhibition inquire "Where are the glass flowers?" At least two poems feature the flowers: Mark Doty (winner of the National Book Award for Poetry in 2008), "The Ware Collection of Glass Flowers and Fruit, Harvard Museum", in My Alexandria, 1993,

Marianne Moore wrote in a poem, "Silence",

See also Artificial flowers Glassblowing Lampworking

References

External links

The Glass Flowers (Harvard) The Glass Flowers (Corning) The Blaschka Archives, held by the Rakow Library of the Corning Museum of Glass. Retrieved 5 June 2014. The Story of Rudolf and Leopold Blaschka Flowers Out of Glass (Penn State) How Were The Glass Flowers Made?

Illustrations

Glass Flowers: Blaschka glass model of Asarum canadense
Blaschka glass model of Asarum canadense
Glass Flowers: Rudolf (standing) and Leopold Blaschka
Rudolf (standing) and Leopold Blaschka
Glass Flowers: Some of the glass models
Some of the glass models
Glass Flowers: "In memory of physician Charles Eliot Ware (1814–1887), a graduate of this university. These models were presented by his wife and daughter who survived him. He sincerely cherished and deeply loved native plants as friends."
"In memory of physician Charles Eliot Ware (1814–1887), a graduate of this university. These models were presented by his wife and daughter who survived him. He sincerely cherished and deeply loved native plants as friends."
Glass Flowers: Cactus model
Cactus model

Worked examples

Example 1 — a first encounter with Glass Flowers

Start with the simplest possible case. Write down what Glass Flowers 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 Glass Flowers 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 Glass Flowers 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 Glass Flowers

In research
Glass Flowers 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 Glass Flowers 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
Glass Flowers is common in secondary-school and first-year university syllabi. It links to neighbouring topics Glass works of art, Harvard University museums, Herbaria in the United States, so understanding it makes those chapters shorter.
In everyday life
Look for Glass Flowers 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 Glass Flowers in 20 minutes

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

Frequently asked questions

What is Glass Flowers in simple terms?

The Ware Collection of Blaschka Glass Models of Plants (or simply the Glass Flowers) is a collection of highly realistic glass botanical models at the Harvard Museum of Natural History in Cambridge, Massachusetts, United States. Created by Leopold and Rudolf Blaschka from 1887 through 1936 at their…

Why does Glass Flowers 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 Glass Flowers?

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 Glass Flowers.

Tags

  • Glass works of art
  • Harvard University museums
  • Herbaria in the United States
  • History of glass
  • Museums in Cambridge, Massachusetts
  • Natural history museums in Massachusetts
  • Works about flowers

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