Planned 'mass execution' of geese in Conn. city paused after outpouring of passionate input on both sides
Tears, shouts and interruptions marked residents' comments Wednesday night over a proposal to exterminate geese in Bristol, Conn., parks.
Tears, shouts and interruptions marked residents' comments Wednesday night over a proposal to exterminate geese in Bristol, Conn., parks.
Plants & Animals
Apr 19, 2024
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15
Focusing attention on your mobile phone instead of your partner doesn't just strain your relationship—it also affects women's creativity in the workplace, caution researchers from the Universities of Bath, Aston, and IESE ...
Social Sciences
Apr 8, 2024
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5
Humans are becoming more urban, with more than half of the world's population now living in cities. This rapid growth poses unique challenges to both the study and governance of cities—a challenge made harder because we ...
Environment
Apr 5, 2024
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4
Most women leaving prison face profound disadvantages and rarely have access to the resources needed to settle back into the community. Seemingly simple tasks such as obtaining replacement identification documents or opening ...
Social Sciences
Apr 3, 2024
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1
Four of the largest school boards in Canada are suing the companies behind popular social media apps Instagram and Facebook, Snapchat and TikTok. According to the Ontario boards, students are "experiencing an attention, learning ...
Education
Apr 2, 2024
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11
DGIST's Physics and Chemistry Professor Park Jin-hee and her research team have developed a technology that allows easy detection of hazardous chemicals. Allowing one to detect harmful substances by analyzing color changes ...
Analytical Chemistry
Mar 29, 2024
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2
Stock up on groceries. Print off driving directions. And be very, very patient.
Planetary Sciences
Mar 23, 2024
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30
Mobile phones are currently banned in all Australian state schools and many Catholic and independent schools around the country. This is part of a global trend over more than a decade to restrict phone use in schools.
Social Sciences
Mar 12, 2024
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15
More than 90% of searches conducted by police in the United States are based on individual consent rather than a warrant or probable cause, but new ILR School research suggests that obtaining true consent is difficult because ...
Social Sciences
Mar 4, 2024
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Global warming is real and climate change is worsening day-by-day with raging forest fires, unseasonably warm winters and flooding disasters taking place across Canada. Meanwhile, the carbon-zero transition required to move ...
Earth Sciences
Feb 28, 2024
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The telephone (from the Greek: τῆλε, tēle, "far" and φωνή, phōnē, "voice"), colloquially referred to as a phone, is a telecommunications device that transmits and receives sounds, usually the human voice. Telephones are a point-to-point communication system whose most basic function is to allow two people separated by large distances to talk to each other. Developed around the 1870s by Alexander Graham Bell and others, the telephone has long been considered indispensable to businesses, households and governments, is now one of the most common appliances in the developed world. The word "telephone" has been adapted to many languages and is now recognized around the world.
All telephones have a microphone to speak into, an earphone which reproduces the voice of the other person, a ringer which makes a sound to alert the owner when a call is coming in, and a keypad (or in older phones a telephone dial or no manual device) to enter the telephone number of the telephone to be called. The microphone and earphone are usually built into a handset which is held up to the face to talk. The keypad may be part of the handset or of a base unit to which the handset would be connected. A landline telephone is connected by a pair of wires to the telephone network, while a mobile phone or cell phone is portable and communicates with the telephone network by radio. A cordless telephone has a portable handset which communicates by radio with a base station connected by wire to the telephone network, and can only be used within a limited range of the base station.
The microphone converts the sound waves to electrical signals and then these are sent through the telephone network to the other phone and there converted by an earphone back into sound waves. Telephones are a duplex communications medium, meaning they allow the people on both ends to talk simultaneously. The telephone network, consisting of a worldwide net of telephone lines, fiberoptic cables, microwave transmission, cellular networks, communications satellites, and undersea telephone cables connected by switching centers, allows any telephone in the world to communicate with any other. Each telephone line has an identifying number called its telephone number. To initiate a telephone call the user enters the other telephone's number into a numeric keypad on the phone. Graphic symbols used to designate telephone service or phone-related information in print, signage, and other media include ℡ (U+2121), ☎ (U+260E), ☏ (U+260F), and ✆ (U+2706).
Although originally designed for voice communication, the system has been adapted for data communication such as Telex, Fax and dial-up Internet communication.
This text uses material from Wikipedia, licensed under CC BY-SA