science

Jodzie

Jodzie 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 Jodzie rather than just read about it. In short: Jodzie is a meteorite that fell on 17 June 1877 near the village of Juodžiai near Panevėžys (then located in Kovno Governorate, Russian Empire, now in Lithuania). It is a relatively rare howardite with some carbonaceous inclusions that were likely a result of an asteroid collision.

Key takeaways

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

Reference excerpt

Jodzie is a meteorite that fell on 17 June 1877 near the village of Juodžiai near Panevėžys (then located in Kovno Governorate, Russian Empire, now in Lithuania). It is a relatively rare howardite with some carbonaceous inclusions that were likely a result of an asteroid collision. Therefore, despite its small size, it has been a subject of several scientific studies.

History The meteorite was obtained by Julian Simashko, a Russian zoologist and entomologist interested in meteorites. After the death of Simashko, his heirs sold the meteorite collection (about 400 specimens) to Henry Augustus Ward for 30,000 gold rubles. This collection, including the main fragment of Jodzie meteorite weighing 48 grams (1.7 oz), was obtained by the Field Museum of Natural History. Fragments of the meteorite are held by several museums: 17.9 grams (0.63 oz) by the Field Museum of Natural History in Chicago, 4.6 grams (0.16 oz) by the Russian Academy of Sciences, 1.5 grams (0.053 oz) by the Natural History Museum in London, 1 gram (0.035 oz) fragments by the National Museum of Natural History in Paris and Natural History Museum in Vienna, 0.5 grams (0.018 oz) by the Natural History Museum in Berlin, 0.2 grams (0.0071 oz) by the National Museum of Natural History in Washington. The fate of other fragments is unknown.

Analysis Jodzie is classified as a howardite. As other gas-rich meteorites, it consists of light parts mixed with darker material that contains a large amounts of primordial rare gases. The light part (Eucritic or basaltic material) is primarily composed of sodium, calcium, aluminosilicate. The dark part (Diogenitic material) is primarily composed of pyroxene, magnesium, iron, and aluminosilicate. Further, Jodzie has several clasts of ferrogabbro and is composed (about 8% of volume) of small CM and CR carbonaceous chondrite-like inclusions, which are not typically found in HED meteorites. Thus, despite its small size, Jodzie displays a great variety of minerals. Studies identified the presence of 25 different minerals, including enstatite, ferrosilite, serpentine group, barringerite, diopside, fayalite, ferrosilite, magnetite, pentlandite, pyrrhotite. Analysis of the noble gases revealed that Jodzie has all five noble gases and is similar to the Kapoeta meteorite (fell in 1942 in South Sudan) except that Jodzie has significantly more of helium-3 and neon-21 isotopes. The inclusions of carbonaceous material and the abundance of primordial gases were likely a result of a low-velocity collision between asteroids – an object (asteroid or comet) bombarded by the solar wind brought carbonaceous material and the gases to the host and the materials mixed during the impact.

References

External links Photo of the fragment at the Russian Academy of Sciences (in Russian) Jodzie at the Meteoritical Bulletin Database

Worked examples

Example 1 — a first encounter with Jodzie

Start with the simplest possible case. Write down what Jodzie 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 Jodzie 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 Jodzie 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 Jodzie

In research: Jodzie 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 Jodzie 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: Jodzie is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1877 in science, 1877 in the Russian Empire, Achondrite meteorites, so understanding it makes those chapters shorter.
In everyday life: Look for Jodzie 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 Jodzie in 20 minutes

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

Frequently asked questions

What is Jodzie in simple terms?

Why does Jodzie 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 Jodzie?

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 Jodzie.