chemistry

Karl Spiro

Karl Spiro is a chemistry 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 Karl Spiro rather than just read about it. In short: Karl Spiro (24 June 1867 – 21 March 1932) was a German biologist, and physical chemist. Spiro was born in Berlin.

Key takeaways

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

Reference excerpt

Karl Spiro (24 June 1867 – 21 March 1932) was a German biologist, and physical chemist. Spiro was born in Berlin. In 1889 he received his PhD from the University of Würzburg as a student of Emil Fischer, then in 1893 obtained his medical doctorate from the University of Leipzig. He later served as an assistant to Oswald Schmiedeberg and Franz Hofmeister at the University of Strasbourg, where in 1912 he became an honorary professor. From 1919 to 1921 he worked as a pharmacologist in the research laboratories of Sandoz AG (Basel). In 1921 he succeeded Gustav von Bunge as professor of physical chemistry at the University of Basel, where he also served as director of the institute for physiological chemistry. He died in Wimmenau, aged 64. In 1897 he invented "Pyramidon", the trade name for aminopyrine. With Arthur Stoll, he is credited with the isolation of ergotamine. His name is associated with "Spiro's test"; a test for the determination of ammonia and urea in the urine through the use of barium oxide and petroleum.

Literary works Ueber physikalische und physiologische Selektion, 1897. Medizinische Kolloidlehre; Physiologie, Pathologie und Therapie in kolloidchemischer Betrachtung (with Leopold Lichtwitz and Raphael Eduard Liesegang) 1935. Ergebnisse der Physiologie, biologischen Chemie und experimentellen Pharmakologie. Reviews of physiology, biochemistry, and experimental pharmacology (for many years edited by Leon Asher and Karl Spiro; Vols. 1-55 have German title only).

References

External links "Obituary Notice: Karl Spiro. (1867–1932.)". Biochemical Journal. 27 (1): 1–2. April 17, 1933. doi:10.1042/bj0270001. PMC 1252832. PMID 16745054.

Worked examples

Example 1 — a first encounter with Karl Spiro

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

In research: Karl Spiro appears in chemistry 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 Karl Spiro 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: Karl Spiro is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1867 births, 1932 deaths, 19th-century German chemists, so understanding it makes those chapters shorter.
In everyday life: Look for Karl Spiro 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 Karl Spiro in 20 minutes

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

Frequently asked questions

What is Karl Spiro in simple terms?

Karl Spiro (24 June 1867 – 21 March 1932) was a German biologist, and physical chemist. Spiro was born in Berlin.

Why does Karl Spiro matter?

Because it connects several chemistry 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 Karl Spiro?

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 Karl Spiro.