physics

Hanna Vehkamäki

Hanna Vehkamäki 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 Hanna Vehkamäki rather than just read about it. In short: Hanna Tuula Katariina Vehkamäki (née Vehkamäki, formerly Arstila, born 27 December 1969) is a Finnish theoretical physicist who works as a professor of computational aerosol physics at the University of Helsinki. Her group investigates atmospheric particle formation. 2022-2025 she served as vice dean responsible of well-being, equality, bilingual affairs, facilities, safety and security.

Key takeaways

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

Reference excerpt

Hanna Tuula Katariina Vehkamäki (née Vehkamäki, formerly Arstila, born 27 December 1969) is a Finnish theoretical physicist who works as a professor of computational aerosol physics at the University of Helsinki. Her group investigates atmospheric particle formation. 2022-2025 she served as vice dean responsible of well-being, equality, bilingual affairs, facilities, safety and security. In 2022, she was awarded Knight, First Class, of the Order of the White Rose of Finland.

Early life and education Vehkamäki was born in Helsinki. She got interested mathematics and physics at high school. She started studying at the University of Helsinki 1988. The undergraduate summer project, related to the formation of particles from atmospheric trace gases, she started working on 1992 was expanded first to a master's thesis and then to doctoral thesis and beyond, eventually becoming an important contribution to atmospheric science. She earned a master's degree in 1994 and a doctorate in 1998.

Research and career Vehkamäki was awarded a research fellowship at University College London and moved to the United Kingdom in 1998. She returned to Helsinki in 2000. Vehkamäki was appointed as a professor at the University of Helsinki in 2009, and as a Research Council of Finland Academy professor for a six-year term 2026–2031. She studies formation of atmospheric aerosol particles, which can have a detrimental impact on air quality and a significant role in climate. The research consortium she leads, VILMA (Virtual laboratory for molecular level atmospheric transformations), combines experimental and computational atmospheric chemistry and physics, and was selected as a Research Council of Finland Centre of Excellence in 2022. Vehkamäki established the equality and wellbeing group at her department (INAR, Institute for Atmospheric and Earth System Research) at the University of Helsinki in 2011, and has led similar initiatives at faculty, university and national levels.

Awards and honours 2010 Magnus Ehrnrooth Foundation Award 2015 University of Helsinki Maikki Friberg Award 2019 Resonanssi ry Badge of Honour 2022 Order of the White Rose of Finland Knight, First Class

Selected publications M. Kulmala; H. Vehkamäki; T. Petäjä; M. Dal Maso; A. Lauri; V.-M. Kerminen; W. Birmili; P.H. McMurry (March 2004). "Formation and growth rates of ultrafine atmospheric particles: a review of observations". Journal of Aerosol Science. 35 (2): 143–176. doi:10.1016/j.jaerosci.2003.10.003. ISSN 0021-8502. Wikidata Q57689802. Markku Kulmala; Jenni Kontkanen; Heikki Junninen; et al. (1 February 2013). "Direct observations of atmospheric aerosol nucleation". Science. 339 (6122): 943–946. doi:10.1126/science.1227385. ISSN 0036-8075. PMID 23430652. Wikidata Q57689182. João Almeida; Siegfried Schobesberger; Andreas Kürten; et al. (6 October 2013). "Molecular understanding of sulphuric acid-amine particle nucleation in the atmosphere". Nature. 502 (7471): 359–363. doi:10.1038/nature12663. ISSN 1476-4687. PMID 24097350. Wikidata Q43829556.

References

Worked examples

Example 1 — a first encounter with Hanna Vehkamäki

Start with the simplest possible case. Write down what Hanna Vehkamäki 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 Hanna Vehkamäki 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 Hanna Vehkamäki 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 Hanna Vehkamäki

In research: Hanna Vehkamäki 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 Hanna Vehkamäki 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: Hanna Vehkamäki is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1969 births, 20th-century Finnish physicists, 20th-century women physicists, so understanding it makes those chapters shorter.
In everyday life: Look for Hanna Vehkamäki 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Hanna Vehkamäki” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Hanna Vehkamäki in 20 minutes

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

Frequently asked questions

What is Hanna Vehkamäki in simple terms?

Why does Hanna Vehkamäki 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 Hanna Vehkamäki?

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 Hanna Vehkamäki.