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  2. Pressure cooker - Wikipedia

    en.wikipedia.org/wiki/Pressure_cooker

    A stovetop pressure cooker. A pressure cooker is a sealed vessel for cooking food with the use of high pressure steam and water or a water-based liquid, a process called pressure cooking. The high pressure limits boiling and creates higher temperatures not possible at lower pressures, allowing food to be cooked faster than at normal pressure.

  3. Portable water purification - Wikipedia

    en.wikipedia.org/wiki/Portable_water_purification

    Groundwater pollution may occur from human activity (e.g. on-site sanitation systems or mining) or might be naturally occurring (e.g. from arsenic in some regions of India and Bangladesh). Water collected as far upstream as possible above all known or anticipated risks of pollution poses the lowest risk of contamination and is best suited to ...

  4. Steamboat - Wikipedia

    en.wikipedia.org/wiki/Steamboat

    The high-pressure steam engine was the development that made the steamboat practical. It had a high power-to-weight ratio and was fuel efficient. High pressure engines were made possible by improvements in the design of boilers and engine components so that they could withstand internal pressure, although boiler explosions were common due to ...

  5. Hawkins Cookers - Wikipedia

    en.wikipedia.org/wiki/Hawkins_Cookers

    Hawkins Cookers Limited Inc and formerly known as Pressure Cookers and Appliances Ltd, [1] is an Indian company which manufactures pressure cookers and cookware. [6] The company is based in Mumbai and has three manufacturing plants at Thane, Hoshiarpur and Jaunpur. It manufactures under brand names of Hawkins, Futura, Contura, Hevibase, Big Boy ...

  6. Solar water heating - Wikipedia

    en.wikipedia.org/wiki/Solar_water_heating

    An ETC can operate at a range of temperatures from medium to high for solar hot water, swimming pool, air conditioning and solar cooker. ETCs higher operational temperature range (up to 200 °C (392 °F)) makes them suitable for industrial applications such as steam generation, heat engine and solar drying.

  7. List of companies of Bangladesh - Wikipedia

    en.wikipedia.org/.../List_of_companies_of_Bangladesh

    Bangladesh Machine Tools Factory: Industrials Defense Gazipur City: 1979 Defense vehicles S A Bangladesh Petroleum Corporation: Oil & gas Exploration & production Dhaka: 1976 State-owned petrochemical S A Bangladesh Pratidin: Consumer services Publishing Dhaka: 2010 Newspaper P A Bangladesh Railway: Industrials Railroads Dhaka: 1862 Railroads S A