By Ed Sobey
Illustrating how a hearth alarm detects smoke and what the plasma” is in a plasma display tv, this interesting instruction manual explains how daily loved ones units functionality and function. greater than one hundred eighty varied family applied sciences are lined, together with contraptions exact to condominium constructions and houseboats. units are grouped based on their "habitats"the front room, kinfolk room, den, bed room, kitchen, toilet, and basementand function a detailed description of what the equipment does and the way it really works, in addition to a photo for simple id. With important sidebars describing similar technical matters, similar to why an inexpensive dimmer swap can intrude with radio reception, this instruction manual for curious readers offers conscientiously specific descriptions and the heritage in the back of some of the older loved ones applied sciences like toasters and taps to more moderen applied sciences like movement detectors, TiVo, and satellite tv for pc radio.
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Additional resources for A Field Guide to Household Technology
Knowing how fast the oscillations occur, the atomic clock counts the oscillations and records the time elapsed. 5, 5, 10, 15, and 20 MHz. 48 A F I E L D G U I D E TO H O U S E H O L D T E C H N O LO G Y Audio Speakers B E H AV I O R They transform electrical signals into the sweet sounds of music and the voices of talk radio and news. H A B I TAT An integral part of a system that plays music or make sounds, speakers can be found throughout the house. Most noticeable may be large speakers connected to the home stereo or entertainment systems.
I N TE R E S T I N G FAC TS Plasma screen TVs use much less electrical power than traditional TVs do. Put this in your living room: the largest plasma TV measures more than 100 inches (diagonally, across the screen). That’s 8 feet across! 36 A F I E L D G U I D E TO H O U S E H O L D T E C H N O LO G Y Television Remote Control B E H AV I O R It allows you to surf the wasteland of TV without arising from the couch. H A B I TAT These devices have the habit of hiding. You can’t find one when you need it.
Smoke particles attach to the ions and reduce the current flow between the two plates. Sensing a decreased current, the alarm switches on that horrible buzzer. I N TE R E S T I N G FAC TS Although almost every home has smoke detectors, these devices weren’t around until just a few years ago. The first commercially available smoke detector for home use was invented in 1969. 58 A F I E L D G U I D E TO H O U S E H O L D T E C H N O LO G Y Shades B E H AV I O R Allow you to cover and uncover a window with a single hand.