science

Kol Mevaser

Kol Mevaser 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 Kol Mevaser rather than just read about it. In short: Kol Mevaser (Yiddish: קול מבשר, lit. 'voice of the herald'), also known as Yiddish24, is a Yiddish broadcaster, accessed by telephone, which runs as a news hotline. It has options for playing recorded messages, covering news, weather forecasts and traffic reports, together with scholarly information on several issues which are important to the Yiddish-speaking Haredi Jewish community, and interviews with important f…

Key takeaways

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

Reference excerpt

Kol Mevaser (Yiddish: קול מבשר, lit. 'voice of the herald'), also known as Yiddish24, is a Yiddish broadcaster, accessed by telephone, which runs as a news hotline. It has options for playing recorded messages, covering news, weather forecasts and traffic reports, together with scholarly information on several issues which are important to the Yiddish-speaking Haredi Jewish community, and interviews with important figures.

Programming and content Kol Mevaser was established in 2005 by Zalmen Wieder, the main news presenter on the hotline. Kol Mevaser serves as an alternative to radio broadcasting for the Yiddish-speaking Orthodox Jewish community, which traditionally shuns such media in favor of community-based information sources such as Kol Mevaser, that are presented in Yiddish. It is one of the main sources of information for the global Yiddish-speaking community, with the largest audiences being in the United States, Canada, Israel and the United Kingdom. The main news programs, which consist of local, world, and Jewish news, are updated twice a day by Wieder, while bulletin news is reported around the clock. Yossi Gestetner provides commentary on political and business news, as well as current events. Other categories are updated less frequently. There is a wide variety of programming on the hotline, including: Interviews conducted by Yitzchok Shloma Dresnser and Hendel Breuer; community affairs with Shaul Klein, Avrohom Yakov Vozner, Pinchas Glauber and Shaya Itzkowitz ("Eliezer Krausz"); psychology with Naftali Stein; and a section devoted to religious Jewish music.

Yiddish24 In July 2019, Kol Mevaser launched a website and app called "Yiddish24" for iOS and Android users. The website and app offer the same content that is provided by the Kol Mevaser hotline.

Worked examples

Example 1 — a first encounter with Kol Mevaser

Start with the simplest possible case. Write down what Kol Mevaser 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 Kol Mevaser 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 Kol Mevaser 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 Kol Mevaser

In research: Kol Mevaser 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 Kol Mevaser 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: Kol Mevaser is common in secondary-school and first-year university syllabi. It links to neighbouring topics Broadcast journalism, Haredi Judaism in New York City, Hasidic Judaism stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Kol Mevaser 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 Kol Mevaser in 20 minutes

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

Frequently asked questions

What is Kol Mevaser in simple terms?

Why does Kol Mevaser 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 Kol Mevaser?

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 Kol Mevaser.