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  2. Radioisotope thermoelectric generator - Wikipedia

    en.wikipedia.org/wiki/Radioisotope...

    A radioisotope thermoelectric generator (RTG, RITEG), sometimes referred to as a radioisotope power system (RPS), is a type of nuclear battery that uses an array of thermocouples to convert the heat released by the decay of a suitable radioactive material into electricity by the Seebeck effect. This type of generator has no moving parts and is ...

  3. Surgical lighting - Wikipedia

    en.wikipedia.org/wiki/Surgical_lighting

    Electric light was still moving and diffuse, with great heat radiation. Many operating room lights used halogen lamps [ 1 ] [ 2 ] or xenon lamps, [ 3 ] some with backup lamps that operated in case of lamp failure [ 4 ] until the advent of Light-emitting diodes as light sources since 2007 [ 5 ] which remove the problem of heat radiation and ...

  4. Safety lamp - Wikipedia

    en.wikipedia.org/wiki/Safety_lamp

    Safety lamp. A safety lamp is any of several types of lamp that provides illumination in places such as coal mines where the air may carry coal dust or a build-up of inflammable gases, which may explode if ignited, possibly by an electric spark. Until the development of effective electric lamps in the early 1900s, miners used flame lamps to ...

  5. Thermoelectric generator - Wikipedia

    en.wikipedia.org/wiki/Thermoelectric_generator

    A thermoelectric generator (TEG), also called a Seebeck generator, is a solid state device that converts heat (driven by temperature differences) directly into electrical energy through a phenomenon called the Seebeck effect [1] (a form of thermoelectric effect). Thermoelectric generators function like heat engines, but are less bulky and have ...

  6. A toddler was trapped in a Tesla after its battery died ... - AOL

    www.aol.com/finance/toddler-trapped-tesla...

    A toddler was trapped in a Tesla after its battery died without warning amid record heat waves—’safety comes last’ at Tesla, expert says Eva Roytburg June 20, 2024 at 2:06 PM

  7. Infrared heater - Wikipedia

    en.wikipedia.org/wiki/Infrared_heater

    An infrared heater or heat lamp is a heating appliance containing a high-temperature emitter that transfers energy to a cooler object through electromagnetic radiation. Depending on the temperature of the emitter, the wavelength of the peak of the infrared radiation ranges from 750 nm to 1 mm. No contact or medium between the emitter and cool ...

  8. Energy conversion efficiency - Wikipedia

    en.wikipedia.org/wiki/Energy_conversion_efficiency

    Energy conversion efficiency (η) is the ratio between the useful output of an energy conversion machine and the input, in energy terms. The input, as well as the useful output may be chemical, electric power, mechanical work, light (radiation), or heat. The resulting value, η (eta), ranges between 0 and 1. [1][2][3]

  9. Electric heating - Wikipedia

    en.wikipedia.org/wiki/Electric_heating

    Electric heating. This radiant heater uses tungsten halogen lamps. Electric heating is a process in which electrical energy is converted directly to heat energy. Common applications include space heating, cooking, water heating and industrial processes. An electric heater is an electrical device that converts an electric current into heat. [1]