engineering

John Walter Osborne

John Walter Osborne is a engineering 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 Walter Osborne rather than just read about it. In short: John Walter Osborne (20 February 1828 – 20 November 1902) was a chemist and engineer born in Ireland, who migrated to Victoria, Australia and in Melbourne pioneered the art of photo-lithography. History Osborne was born in Ireland, and received an excellent education.

Key takeaways

John Walter Osborne belongs to engineering; place it in that map before memorising details.
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Connect John Walter Osborne to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of John Walter Osborne from memory before moving on to harder problems.

Reference excerpt

John Walter Osborne (20 February 1828 – 20 November 1902) was a chemist and engineer born in Ireland, who migrated to Victoria, Australia and in Melbourne pioneered the art of photo-lithography.

History Osborne was born in Ireland, and received an excellent education. He emigrated to Melbourne with his wife Anne on the Peru, listed as "engineer" (though he was later described as an analytical chemist), arriving on Christmas Day 1852. In 1857 he was employed as an assistant to Professor George Neumayer at the Flagstaff Hill magnetic observatory, a project funded by the King of Bavaria. In February 1859 he left to take up a position with the Crown Lands Office (Survey Department of the Office of Crown Lands and Survey), and was replaced by W. J. Wills (shortly to become a famous explorer). It is likely that Osborne had photolithography in mind when he joined the department, and it shows considerable faith in the project by its head Charles W. Ligar that Dallmeyer of London was commissioned to produce the large lens required, at a cost of £250. In September 1859 he applied for a patent for "obtaining lithographic impressions with the aid of photography" In December he read to the Philosophical Institute of Victoria, of which he was a member, a paper entitled "Description of a new photo lithographic process". Dr. Ligar, director of the Survey Office and Surveyor-General of Victoria, followed with an endorsement of the system, noting the immense saving of time in having new plans duplicated.

Before the advent of photolithography, plans (which may have measured 6 by 6 feet (1.8 m × 1.8 m) were reproduced painstakingly by draughtsmen to 1/2 or 1/3 scale onto prepared stone slabs, a process which could take days or weeks. In most cases the expense in preparing a copy was so great that the stone, which could weigh 100 pounds (45 kg) was stored against the need for future re-use. The cost and logistics of conserving, storing and retrieving thousands of lithographic stones was of course immense; add to that the cost of the stones – £5 each, perhaps $1000 in today's values – and the virtue of saving the artwork onto glass photographic plates maybe 6 inches (150 mm) square, and having half-a-dozen stones in stock, which could be cleaned, prepared, and photographically embossed over and over again, being resurfaced as required, becomes obvious. The time lost in preparing the stones went from days or weeks to hours, the likelihood of error normally attendant in manual copying reduced to practically zero, and scaling preserved perfectly. Implementation of his invention was opposed by professional lithographers, as it threatened their livelihood, and a Parliamentary Board was appointed to look into the advisability and applicability of the process. In their report of January 1861 they recommended adoption of the process in the Survey Department, an increase in salary for Osborne, and grants to both him and his assistant. The time saved by Osborne's process was of great benefit to the Crown Lands Department, which was under pressure from developers during the land boom of the 1850s. Osborne was paid £1000 by the Survey Office for the Australian rights to his invention, and his assistant Duncan McHutchison received £200. In March 1862 Osborne left for Europe to exploit his invention there, but found the patents already acquired by someone else. He then proceeded to America, where he set up a studio in New York and sold his rights to The American Photolithographic Company. He later moved to Palo Alto, California, here he died. His wife survived him but they had no children.

Further reading Anne-Marie Willis. "John Walter Osborne". Design and Art Australia On-line. Jean Gittins. Australian Dictionary of Biography: Osborne, John Walter (1828–1902). National Centre of Biography, Australian National University. Osborne's work is not mentioned in Making It : Innovation and Success in Australia's Industries, by Robert Renew 1993 ISBN 9781863170307

References

Worked examples

Example 1 — a first encounter with John Walter Osborne

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

In research: John Walter Osborne appears in engineering 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 Walter Osborne 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 Walter Osborne is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1828 births, 1902 deaths, 19th-century Australian inventors, so understanding it makes those chapters shorter.
In everyday life: Look for John Walter Osborne 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 Walter Osborne in 20 minutes

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

Frequently asked questions

What is John Walter Osborne in simple terms?

John Walter Osborne (20 February 1828 – 20 November 1902) was a chemist and engineer born in Ireland, who migrated to Victoria, Australia and in Melbourne pioneered the art of photo-lithography. History Osborne was born in Ireland, and received an excellent education.

Why does John Walter Osborne matter?

Because it connects several engineering 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 Walter Osborne?

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 Walter Osborne.