science

Progress M-18M

Progress M-18M 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 Progress M-18M rather than just read about it. In short: Progress M-18M (Russian: Прогресс М-18М), identified by NASA as Progress 50P, is a Progress spacecraft used by Roskosmos to resupply the International Space Station during 2013. Progress M-18M was sent on a four-orbit rendezvous profile that was already demonstrated by the Progress M-16M and Progress M-17M spacecraft in 2012.

Key takeaways

Progress M-18M belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Progress M-18M to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Progress M-18M from memory before moving on to harder problems.

Reference excerpt

Progress M-18M (Russian: Прогресс М-18М), identified by NASA as Progress 50P, is a Progress spacecraft used by Roskosmos to resupply the International Space Station during 2013. Progress M-18M was sent on a four-orbit rendezvous profile that was already demonstrated by the Progress M-16M and Progress M-17M spacecraft in 2012.

Launch The spacecraft was launched on time at 14:41:46 UTC on 11 February 2013 from the Baikonur Cosmodrome in Kazakhstan.

Docking

Progress M-18M docked with the Pirs at 20:35 UTC less than six hours after the launch. The successful docking climaxed the third successful Same-Day-Rendezvous in the International Space Station history.

Cargo Progress M-18M delivered about 346 kilograms (763 lb) of propellant, 50 kilograms (110 lb) of oxygen and air, 420 kilograms (930 lb) of water and about 1,368 kilograms (3,016 lb) of spare parts, science gear and other supplies (dry cargo) to the Space Station.

Undocking and reentry

Progress M-18M undocked from the ISS on 25 July 2013. The re-entry procedure started around 23:53 UTC, on 25 July 2013. The destruction occurred at 00:42 UTC, on 26 July 2013 in the Pacific Ocean.

References

Illustrations

Worked examples

Example 1 — a first encounter with Progress M-18M

Start with the simplest possible case. Write down what Progress M-18M 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 Progress M-18M 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 Progress M-18M 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 Progress M-18M

In research: Progress M-18M 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 Progress M-18M 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: Progress M-18M is common in secondary-school and first-year university syllabi. It links to neighbouring topics Progress (spacecraft) missions, Spacecraft launched by Soyuz-U rockets, Spacecraft launched in 2013, so understanding it makes those chapters shorter.
In everyday life: Look for Progress M-18M 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 Progress M-18M in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Progress M-18M 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 Progress M-18M out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Progress M-18M in simple terms?

Why does Progress M-18M 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 Progress M-18M?

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 Progress M-18M.