science

Urs Graf

Urs Graf is a science 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 Urs Graf rather than just read about it. In short: Urs Graf (c. 1485 in Solothurn, Switzerland – possibly before 13 October 1528) was a Swiss Renaissance goldsmith, painter and printmaker (of woodcuts, etchings and engravings), as well as a Swiss mercenary. He only produced two etchings, one of which dates from 1513 – the earliest known etching for which a date has been established.

Key takeaways

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

Reference excerpt

Urs Graf (c. 1485 in Solothurn, Switzerland – possibly before 13 October 1528) was a Swiss Renaissance goldsmith, painter and printmaker (of woodcuts, etchings and engravings), as well as a Swiss mercenary. He only produced two etchings, one of which dates from 1513 – the earliest known etching for which a date has been established. However, his woodcuts are considered of greater significance, particularly as he is attributed with the invention of the white-line woodcut technique, where white lines create the image on a black background. He also produced a few engravings, including copies of works by Martin Schongauer and Albrecht Dürer. He produced innovative drawings intended as finished works of art rather than just studies.

Biography Graf learned goldsmithing first from his father, Hugo Graf, then from a goldsmith in Zürich. He continued to work as a goldsmith and a few pieces survive. He initially earned money as a designer of woodcut book illustrations and by assisting the stained glass painter, Lienhart Triblin. In 1511, he designed the book cover for the Decretum Gratiani for the printers Johann Amerbach, Johannes Petri and Johannes Froben and by 1512 Graf designed the cover of book with the sermons of the deceased Johann Geiler von Keysersberg for Adam Petri, the successor and nephew from Johannes Petri. In 1512, he bought citizenship in Basel and became a member of the goldsmiths' guild. He quickly came into conflict with the law for abusing his wife and consorting with prostitutes, culminating in accusations of attempted murder which caused him to flee the city in 1518. He was allowed to return to Basel the following year, where he continued working, but after 1527 his life becomes unclear. Given his frequent employment as a soldier of fortune it is possible he was present at the sack of Rome. Christiane Andersson noted that, "When and where he died are unknown: his wife remarried in October 1528 but an autograph drawing is dated 1529". Like many Swiss men of his day, Graf was known to have worked as a mercenary for considerable periods. His artistic output, arising from the tradition of Albrecht Dürer and Hans Baldung, includes a wide range of subjects, depicting social, erotic, military, political, and criminal images (e.g., Two Prostitutes Beating a Monk), as well as strong religious feelings which emerge in some works.

References

Christiane Andersson. "Graf, Urs." Grove Art Online. Oxford Art Online. Oxford University Press. Web. 26 Feb. 2013. [1]

External links Bible. N.T. Gospels. Latin. 1506.[Strassburg, J. Knobloch, 1506?] Engravings: Urs Graf. From the Lessing J. Rosenwald Collection at the Library of Congress Media related to Urs Graf at Wikimedia Commons

Illustrations

Worked examples

Example 1 — a first encounter with Urs Graf

Start with the simplest possible case. Write down what Urs Graf claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Urs Graf 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 Urs Graf 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 Urs Graf

In research: Urs Graf appears in science 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 Urs Graf 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: Urs Graf is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1480s births, 1520s deaths, 16th-century Swiss painters, so understanding it makes those chapters shorter.
In everyday life: Look for Urs Graf 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 Urs Graf in 20 minutes

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

Frequently asked questions

What is Urs Graf in simple terms?

Why does Urs Graf matter?

Because it connects several science 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 Urs Graf?

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 Urs Graf.