Engineering
Sodium-metal batteries (SMBs) are one of the most promising high-energy and low-cost energy storage systems for the next-generation of large-scale applications. However, one of the major impediments to the development of ...
Oct 5, 2022
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262
Engineering
A safer, greener, and inexpensive rechargeable battery for powering electric vehicles, mobile phones and many other applications could be a step closer following a breakthrough discovery by NUS researchers.
Aug 23, 2022
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898
Engineering
It's a brainy Band-Aid, a smart watch without the watch, and a leap forward for wearable health technologies. Researchers at the University of Chicago's Pritzker School of Molecular Engineering (PME) have developed a flexible, ...
Aug 5, 2022
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122
Electronics & Semiconductors
Researchers from UNSW Sydney have developed a tiny, transparent and flexible material to be used as a novel dielectric (insulator) component in transistors. The new material would enable what conventional silicon semiconductor ...
Aug 3, 2022
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114
Electronics & Semiconductors
A crucial but poorly-studied parameter that dictates battery performance is the migration barrier. It determines the rate at which ions move through an electrode inside the battery, and ultimately the rate at which it charges ...
Jul 25, 2022
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240
Hardware
"Hey, Siri, how's the weather today?" Voice recognition technology is increasingly prevalent. It is a convenient technology with broad applications. However, to get the most of its intended functions, users must stand near ...
Jul 1, 2022
1
113
Security
A team of engineers at the University of California San Diego has demonstrated for the first time that the Bluetooth signals emitted constantly by our mobile phones have a unique fingerprint that can be used to track individuals' ...
Jun 8, 2022
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124
Internet
Apple, Google and Microsoft said Thursday they are looking to get rid of passwords and replace them with a more secure way to access accounts or devices.
May 5, 2022
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383
Software
Snapfeet is a new mobile phone app that shows how well shoes will fit based on the 3D shape of the user's foot. It also offers a simple augmented reality (AR) visualization of what the shoes will look like on the feet.
May 5, 2022
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68
Internet
A new form of security identification could soon see the light of day and help us protect our data from hackers and cybercriminals. Quantum mathematicians at the University of Copenhagen have solved a mathematical riddle ...
Apr 28, 2022
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456
The telephone (from the Greek: τῆλε, tēle, "far" and φωνή, phōnē, "voice") is a telecommunications device that transmits and receives sound, most commonly the human voice. It is one of the most common household appliances in the developed world, and has long been considered indispensable to business, industry and government. The word "telephone" has been adapted to many languages and is widely recognized around the world.
The device operates principally by converting sound waves into electrical signals, and electrical signals into sound waves. Such signals when conveyed through telephone networks — and often converted to electronic and/or optical signals — enable nearly every telephone user to communicate with nearly every other worldwide. Graphic symbols used to designate telephone service or phone-related information in print, signage, and other media include ℡, ☎, ☏, and ✆.
This text uses material from Wikipedia, licensed under CC BY-SA
