astronomy

Şahika Ercümen

Şahika Ercümen is a astronomy 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 Şahika Ercümen rather than just read about it. In short: Şahika Ercümen (born 16 January 1985) is a Turkish dietitian and world record holder free-diver. Born on January 16, 1985, in Çanakkale, she was educated at the Gazi Primary School, and received a secondary education at the Milli Piyango Anatolian High School in her hometown.

Key takeaways

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

Reference excerpt

Şahika Ercümen (born 16 January 1985) is a Turkish dietitian and world record holder free-diver. Born on January 16, 1985, in Çanakkale, she was educated at the Gazi Primary School, and received a secondary education at the Milli Piyango Anatolian High School in her hometown. For her higher education, she moved to Ankara, and became a dietitian graduating from the Department of Nutrition and Dietetics at Başkent University's Faculty of Health Sciences. Her participation in underwater sports began with scuba diving and underwater rugby. For twelve years, she is interested in various branches of underwater sports, and is a member of four national teams since 2001. She participated with the underwater hockey, underwater rugby, underwater orienteering and free diving national teams in the World and European Championships.

Achievements Her 110 m (360 ft) long dynamic apnea under ice (DYN) that was achieved on February 11, 2011, in Lake Weissensee, Austria, found entry into the Guinness Book of World Records for both for men and women. Former records were 70 m (230 ft) for women and 108 m (354 ft) for men. Şahika Ercümen is former world record holder of constant weight with fins at sea (CWT) discipline with 70 m (230 ft) set in Dahab, Egypt on November 10, 2011 (recognized by CMAS). The former record belonged to Tanya Streeter with 67 m (220 ft). The same day at the same place, she set another CMAS-recognized world record diving 60 m (200 ft) deep in variable weight apnea without fins at sea (VNF). On June 1, 2013, she broke her own world record diving in the VNF discipline to a depth of 61 m (200 ft) in saline soda waters of Lake Van, eastern Turkey (recognized by CMAS). She stated that she preferred the site for her world-record free-diving attempt because she wanted to call world's attention to the migration of Pearl Mullet (Chalcalburnus tarichi), also called Lake Van fish. She set a new free-diving world record in the VNF discipline reaching the 91 m (299 ft) depth mark in 2:49 minutes at Kaş, Antalya, southern Turkey on July 23, 2014. Former record in this discipline, which was set the previous year, belonged to Derya Can, another Turkish diver. On October 22, 2016, Ercümen set a new world record off Kaş, Turkey diving to a depth of 110 m (360 ft) in the variable weight apnea with fins at sea (VWT) discipline in 2:44 minutes. Her record was recognized by CMAS officials at site. She set a new CMAS world record for women diving in sweet water of Lake Salda in Yeşilova, Burdur Province, Turkey to 65 m (213 ft) in 1:58 minutes. The previous world record was at 55 m (180 ft). On 26 October 2021, she set a new world record in variable weight apnea without fins at sea (VNF) category at Kaş, Antalya, Turkey with 100 m (330 ft), which is valid for women and men. In October 2025, she set a new world record of 106 meters in the variable weight apnea without fins at sea category, diving to 107 meters with the slogan “Let Gaza breathe, let darkness turn to light” to draw attention to Gaza.

World records DYN under ice 110 m (360 ft) - February 11, 2011 in Lake Weissensee, Austria CWT 70 m (230 ft) - November 10, 2011 in Dahab, Egypt VNF 60 m (200 ft) - November 10, 2011 in Dahab, Egypt 61 m (200 ft) - June 1, 2013 in Lake Van, Turkey 91 m (299 ft) - July 23, 2014 in Kaş, Antalya, Turkey 100 m (330 ft) - October 26, 2021 in Kaş, Antalya, Turkey 107 m (351 ft) - October 17, 2025 in Kaş, Antalya, Turkey VWT 110 m (360 ft) - October 22, 2016 in Kaş, Antalya, Turkey Fresh water 65 m (213 ft) - October 26, 2018 in Lake Salda, Yeşilova, Burdur, Turkey

References

External links Official Website

Illustrations

Worked examples

Example 1 — a first encounter with Şahika Ercümen

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

In research: Şahika Ercümen appears in astronomy 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 Şahika Ercümen 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: Şahika Ercümen is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1985 births, Başkent University alumni, Dietitians, so understanding it makes those chapters shorter.
In everyday life: Look for Şahika Ercümen 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 Şahika Ercümen in 20 minutes

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

Frequently asked questions

What is Şahika Ercümen in simple terms?

Why does Şahika Ercümen matter?

Because it connects several astronomy 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 Şahika Ercümen?

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 Şahika Ercümen.