What are worries that people have about smoke alarms?
I have to do a science project, and one of the questions that I have to answer is about worries that people have about smoke alarms. I can’t really think of any reasons why people would be worried about them though :S
Would appreciate any answers … Thanks 
House fires may smolder (in a couch?) for hours before bursting into flame, and there may be as little as three minutes to safety evacuate once there is an open flame. A real concern should be whether smoke detector(s) are located in the correct places to give an early warning. A detector shoul be placed in the hall outside bedrooms (and the doors kept shut). A detector should also be placed in any bedroom where people smoke. Detectors chirp periodically when the battery needs to be replaced and there is a button that should be used to test that the (electronics) work (perhaps monthly). If a detector is energized by house current, there is a concern that a short circuit that causes a fire may open the circuit breaker that energizes the alarm. Many detectors that use a small amount of radioactive material to ionize air in the detector will alarm when there is a sudden change in room air (opening doors to the outside or cooking food in a kitchen) and an over-ride button will silence the false alarm until the air clears. Using a magazine, etc. to fan and clear a false alarm will help save the battery. Detectors usually come with clear installation instruction to avoid dead air spaces (too high or in corners, etc or too low to catch rising heat and smoke. Special detectors (rather than smoke detectors) must be used to detect carbon monoxide (especially if a fireplace is in use). Soot, etc. has fallen down chimneys blocking the flu and causing death by carbon monoxide. Some smoke detectors use a photoelectric cell to alarm if smoke blocks the light signal and ionized air type detectors should also be used to provide an earlier warning while the fire is still smoldering.
A general concern is that only one person will hear the alarm and must alert all others in the house who must follow a prior plan to escape (out windows using rope ladders, etc.) to avoid the flames. Everyone should meet at an assigned location so that no one races back inside to rescue someone who has already escaped.
Jeff Mills – The Alarms ( 1998 )
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‘A paradise of my own creation’: Domesticity and the gothic in Jane Austen’s ”Northanger Abbey”, Mary Shelley’s ”Frankenstein”, and Bram Stoker’s ”Dracula”. $49.99 While critics often neglect Gothic novels as part of a literary movement with little to offer in terms of valuable insights, many Gothic novels do, in fact explore relevant cultural themes and ideas, such as the methods of constructing proper families and domestic circles. This study examines the ways in which Jane Austen’s Northanger Abbey, Mary Shelley’s Frankenstein, and Bram Stoker’s Dracula as works that endorse the safety and harmony of domestic circles.;In her novel Northanger Abbey, Austen uses Gothic conventions to educate her characters in how to form acceptable engagements by learning to see the world using both rational thought and sensibility in their proper places. By joining Catherine and Henry along with their two seemingly opposing worldviews, Austen “juxtaposes the ‘alarms of romance’ to the ‘anxieties of life’ in order to enable [the reader] to see their interdependence… [as well as] their indistinguishability” (Johnson “Introduction” xiv-xv). In Frankenstein, Shelley relates the importance of familial responsibility and the consequences of denying this responsibility. With each concentric tale told within the novel’s frame, Shelley provides a glimpse into different levels of success within domestic relationships between family and friends, and as the novel closes, Shelley allows a glimpse of hope for the domestic, through Walton’s embrace of the responsibilities of a mature adult. In Dracula, Bram Stoker uses domestic connections to explain the necessity of creating proper relationships in order to nullify the forces that threaten the families of England. Stoker presents a woman, Mina Harker, who faces the Gothic threat and reestablishes domestic harmony by combining the best of modern attitudes and education as well as traditional wants and needs of a close domestic unit. |
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12V RF Keyless Entry Wireless Remote Control 315MHz / 433MHz Wireless Remote Control Switch Board Module AK-RD088+AK-RK06B-12 $50.99 Specifications:Wireless Remote Control:Frequency: 315 / 433Mhz, SAW frequency stabilization Battery Model: 27A Voltage: 12V Dimension: 52 x 40 x 14mm / 2.05 x 1.57 x 0.55in(L x W x H) Copy: 226222605026-1 5026-25026-3 5026-4 FP527 SMC918 PT2240 EV1527 HT12D HT12E chip remote control etcSelf learning remote control Many uses including car alarms, home alarms, panic buttons, garage door, rolling curtain, etc Copies most radio frequency fixed code remote controls Learining face to face in seconds Only copy of a fixed code can not be copied rolling codeWireless Remote Control Switch Board Module:Operating Voltage: 12V Static Current: le; 6mA Working Temperature: -40 â?- +80 â?Receiver Sensitivity: ge;-105dBm Working Frequency: 315MHz, 433MHz Output Voltage: AC and DC optional Output Current: le; 10A Size: 68 x 52 x 26mm / 2.68 x 2.05 x 1.02in (L x W x H)Package Included:1 x Wireless Remote Control 1 x Wireless Remote Control Switch Board Module |
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12V Sell RF Keyless Entry Wireless Remote Control AK-RD088 $7.69 Specifications:Frequency: 315/433Mhz, SAW frequency stabilizationCopy: 226222605026-1 5026-25026-3 5026-4 FP527 SMC918 PT2240 EV1527 HT12D HT12E chip remote control, etcBattery Model: 27AVoltage: 12VDimension: 52 x 40 x 14mm / 2.05 x 1.57 x 0.55in (L x W x H)Features:Self learning Wireless Remote ControlThis Wireless Remote Control can be used in car alarms, home alarms, panic buttons, garage door, rolling curtain, etcCopy most radio frequencies, fixed code The Wireless Remote Control can learn face to face in seconds The Keyless Remote Control only copies fixed codes, can not copy rolling codesDetails:This RF Wireless Remote is widely used in anti-theft system of motorcycle and car and household safety protection systemThis remote wireless control is fit for car alarms, home alarms, panic buttons, garage door, rolling curtain, etcAbout Wireless Remote Control:Wireless remote controls are designed to control |
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1874 in Economics: Companies Established in 1874, R. J. Reynolds Tobacco Company, Bank of America, Piaget Sa, ADT Security Services $20.49 Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 113. Not illustrated. Chapters: Companies Established in 1874, R. J. Reynolds Tobacco Company, Bank of America, Piaget Sa, Adt Security Services, Pacific Press Publishing Association, Schindler Group, Detroit Copper Mining Company of Arizona, Leeds Forge Company, Watts & Co, Hunting Plc, Nycomed, Caledon Shipbuilding & Engineering Company, Batemans Brewery, Frank Cooper’s, Mm Cohn, the Fair Store, Norsk Elektrisk & Brown Boveri, Bleichert, J. B. White, Reeves & Co., Yazoo/kees, London Life Insurance Company, Dreffa, Commercial National Bank. Excerpt: Tyco Fire & Security headquarters in Boca Raton (also home to ADT)ADT Security Services , originally American District Telegraph now also known as ADT Fire and Security or simply ADT , is a division of Tyco International and a worldwide supplier of electronic security systems, fire alarm systems, communication systems, and integrated building management systems .History In the United States in the 19th century, there were many small telegram delivery companies; in 1874, 57 district telegraph delivery companies affiliated and became “American District Telegraph”. With the increase in telephone usage in the late 1800s, ADT’s messenger business slowly declined in popularity. ADT tried branching out and developing their signaling business while still maintaining their telegraph business as primary income source. ADT incorporated into Western Union in 1901. ADT separated its messenger business from its main signaling business at this time. In 1909, Western Union and ADT came under the control of AT &T . ADT began to expand into new areas like fire alarms and burglar alarms between 1910 and 1930, but was kept separate from AT &T’s Holmes alarm business. ADT became a publicly owned company in the 1960s.In 1964, ADT was found to be a monopoly in restraint of trade . It was shown to |
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