science

Safe bottle lamp

Safe bottle lamp 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 Safe bottle lamp rather than just read about it. In short: The Safe bottle lamp, called sudeepa or sudipa for good lamp, is a safer kerosene lamp designed by Wijaya Godakumbura of Sri Lanka. The safety comes from heavier glass, a secure screw-on metal lid, and two flat sides which prevent it from rolling if knocked over.

Key takeaways

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

Reference excerpt

The Safe bottle lamp, called sudeepa or sudipa for good lamp, is a safer kerosene lamp designed by Wijaya Godakumbura of Sri Lanka. The safety comes from heavier glass, a secure screw-on metal lid, and two flat sides which prevent it from rolling if knocked over.

History As surgeon Dr. Godakumbura saw many burn cases caused by kerosene lamp fires. Over 1 million homes in Sri Lanka do not have electricity, and rely on kerosene lamps for illumination, often improvised lamps made from bottles. These tall lamps tip easily, and when they do, the wick holder often falls out and starts a sudden, intense fire. Often the fuel falls on a nearby person, setting them ablaze and resulting in severe burns, often fatal. In 1992, Dr. Godakumbura set out to design a new lamp that was both safer, and inexpensive enough to be affordable by the impoverished Sri Lankans at risk for these fires. The resulting lamp is a small, flattened sphere, which resists tipping and rolling. It is made of thick glass to resist breaking, and has a screw-on metal cap that holds the wick in place and prevents spilling. In 1993, with contributions from numerous sources, including science fiction writer and Sri Lanka resident Arthur C. Clarke, and the Canadian High Commission, the lamp was put into production. Available for a cost of less than US$0.25 each, over half a million of the new lamps have been sold, and Dr. Godakumbura hopes to continue producing the new lamps until use of improvised lamps drops to a small percentage of lamp use in Sri Lanka.

The Foundation Having received a Rolex Award for Enterprise in 1998, Dr. Godakumbura established the Safe Bottle Lamp Foundation (SBLF), a non-profit organization. The Foundation is governed by a board of directors and employs two full-time staff. In addition to the Rolex Award, the foundation and Dr. Godakumbura have received a range of other local and international awards and grants. Among these are a Lindbergh Foundation Grant and a BBC World Challenge Award. The project has been featured in many international publications such as TIME, Newsweek, Science and Nature, National Geographic and La Figaro. Dr. Godakumbura has represented the foundation in many international conferences on burn and accident prevention as a speaker or as a participant. The foundation and the Sudeepa lamp have been promoted as a replicable solution for other developing countries where accidental burns due to unsafe lamps is prevalent.

See also Kerosene lamp Appropriate technology

References

External links Rolex Awards (winner, Science and Medicine category, 1998) SafeLamp.org Official Website "A Bright Idea - Winner 2009" The BBC World Challenge: 2009 Winner

Worked examples

Example 1 — a first encounter with Safe bottle lamp

Start with the simplest possible case. Write down what Safe bottle lamp 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 Safe bottle lamp 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 Safe bottle lamp 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 Safe bottle lamp

In research: Safe bottle lamp 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 Safe bottle lamp 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: Safe bottle lamp is common in secondary-school and first-year university syllabi. It links to neighbouring topics Appropriate technology, International development stubs, Safety, so understanding it makes those chapters shorter.
In everyday life: Look for Safe bottle lamp 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 Safe bottle lamp in 20 minutes

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

Frequently asked questions

What is Safe bottle lamp in simple terms?

Why does Safe bottle lamp 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 Safe bottle lamp?

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 Safe bottle lamp.