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John C. H. Spence

John C. H. Spence is a physics 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 John C. H. Spence rather than just read about it. In short: John Charles Howorth Spence ForMemRS HonFRMS (21 April 1946 – 28 June 2021) was Richard Snell Professor of Physics at Arizona State University and Director of Science at the National Science Foundation BioXFEL Science and Technology Center. Education Spence was educated at the University of Melbourne where he was awarded a PhD in 1973 for work on double plasmon studies of metals under the supervision of Alan Spargo.

John C. H. Spence — main illustration
John C. H. Spence — illustration

Key takeaways

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

Reference excerpt

John Charles Howorth Spence ForMemRS HonFRMS (21 April 1946 – 28 June 2021) was Richard Snell Professor of Physics at Arizona State University and Director of Science at the National Science Foundation BioXFEL Science and Technology Center.

Education Spence was educated at the University of Melbourne where he was awarded a PhD in 1973 for work on double plasmon studies of metals under the supervision of Alan Spargo. He conducted postdoctoral research at University of Oxford under Sir Peter Hirsch, David Cockayne and Michael Whelan, and then at Arizona State University under John M. Cowley, working alongside Sumio Iijima, Ondrej Krivanek and David J. Smith. Later, he established his own group at Arizona State University.

Awards and honours Spence was elected a Foreign Member of the Royal Society (ForMemRS) in 2015. His nomination reads: John Spence is distinguished for his innovative world-leading contributions to both biology and materials science. He co-led the team which conceived the first application of X-ray free-electron lasers (XFEL) to structural biology using protein nanocrystals and he pioneered femtosecond serial crystallography. He is also a world leader in the development and application of atomic-resolution electron microscopy and its use for the study of atomic defects in crystals and semiconductors. For example, he co-invented a widely used technique for locating impurity atoms in nanocrystals, for directly and accurately imaging the chemical bonds between atoms, and published the first observation of dislocation kinks, at atomic resolution. He has developed new microscopies and spectroscopies which have given scientists new eyes to understand atomic processes in solids. In 2017, he was made an Honorary Fellow of the Royal Microscopical Society (HonFRMS) for his contributions to microscopy. Spence was a (corresponding) Fellow of the Australian Academy of Science, and the author of the book "Lightspeed" (OUP 2019) on the history of attempts to measure the speed of light leading to Einstein's theories. For 2021 he was awarded the Gregori Aminoff Prize. He died in 2021.

Bibliography

Monograph and handbook Spence, John C. H.; Zuo, J. M. (1992). Electron microdiffraction. New York: Plenum Press. ISBN 0-306-44262-0. OCLC 26634670. Science of microscopy. P. W. Hawkes, John C. H. Spence. New York: Springer. 2007. ISBN 978-0-387-25296-4. OCLC 288524612.{{cite book}}: CS1 maint: others (link) Spence, John C. H. (2013). High-resolution electron microscopy (4th ed.). Oxford. ISBN 978-0-19-150840-0. OCLC 862086211.{{cite book}}: CS1 maint: location missing publisher (link) Zuo, Jian Min; Spence, John C. H. (2017). Advanced transmission electron microscopy: imaging and diffraction in nanoscience. New York, NY. ISBN 978-1-4939-6607-3. OCLC 962017350.{{cite book}}: CS1 maint: location missing publisher (link) Springer handbook of microscopy. P. W. Hawkes, John C. H. Spence. Cham, Switzerland. 2019. ISBN 978-3-030-00069-1. OCLC 1126315044.{{cite book}}: CS1 maint: location missing publisher (link) CS1 maint: others (link)

Nonfiction Spence, John C. H. (2020). Lightspeed: the ghostly aether and the race to measure the speed of light. Oxford, United Kingdom. ISBN 978-0-19-884196-8. OCLC 1126585794.{{cite book}}: CS1 maint: location missing publisher (link) Spence, John C. H. (2021). Spitfire pilot : Lou Spence: a story of bravery, leadership and love. Torquay, Victoria. ISBN 978-1-920785-00-0. OCLC 1265060680.{{cite book}}: CS1 maint: location missing publisher (link)

See also Henry N. Chapman Sumio Iijima Serial femtosecond crystallography

References

Illustrations

John C. H. Spence illustration

Worked examples

Example 1 — a first encounter with John C. H. Spence

Start with the simplest possible case. Write down what John C. H. Spence claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, 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 John C. H. Spence 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 John C. H. Spence 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 John C. H. Spence

In research
John C. H. Spence appears in physics 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 John C. H. Spence 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
John C. H. Spence is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1946 births, 2021 deaths, Australian fellows of the Royal Society, so understanding it makes those chapters shorter.
In everyday life
Look for John C. H. Spence 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 John C. H. Spence in 20 minutes

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

Frequently asked questions

What is John C. H. Spence in simple terms?

John Charles Howorth Spence ForMemRS HonFRMS (21 April 1946 – 28 June 2021) was Richard Snell Professor of Physics at Arizona State University and Director of Science at the National Science Foundation BioXFEL Science and Technology Center. Education Spence was educated at the University of Melbour…

Why does John C. H. Spence matter?

Because it connects several physics 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 John C. H. Spence?

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 John C. H. Spence.

Tags

  • 1946 births
  • 2021 deaths
  • Australian fellows of the Royal Society
  • Australian physicists
  • Fellows of the Australian Academy of Science
  • Fellows of the Institute of Physics
  • Foreign members of the Royal Society
  • Honorary Fellows of the Royal Microscopical Society
  • Microscopists
  • Scientists from Canberra

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