Kids study in overheated slum as Philippines shuts schools
Fourth-grader Ella Araza sat on a tiny plastic box in her Manila slum home, trying to finish her homework before the afternoon sun sent temperatures soaring to unbearable levels.
Fourth-grader Ella Araza sat on a tiny plastic box in her Manila slum home, trying to finish her homework before the afternoon sun sent temperatures soaring to unbearable levels.
Environment
11 hours ago
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Imagine working during a heat wave, standing over a boiling hot stove in a busy restaurant with no air conditioning, limited ventilation and no access to a break until you've worked five consecutive hours.
Economics & Business
12 hours ago
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Air conditioning refers to the cooling and dehumidification of indoor air for thermal comfort. In a broader sense, the term can refer to any form of cooling, heating, ventilation or disinfection that modifies the condition of air. An air conditioner (often referred to as AC or air con.) is an appliance, system, or mechanism designed to stabilise the air temperature and humidity within an area (used for cooling as well as heating depending on the air properties at a given time), typically using a refrigeration cycle but sometimes using evaporation, most commonly for comfort cooling in most buildings and motor-cars.
The concept of air conditioning is known to have been applied in Ancient Rome, where aqueduct water was circulated through the walls of certain houses to cool them. Similar techniques in medieval Persia involved the use of cisterns and wind towers to cool buildings during the hot season. Modern air conditioning emerged from advances in chemistry during the 19th century, and the first large-scale electrical air conditioning was invented and used in 1902 by Willis Haviland Carrier.
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