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Can Wi-Fi signals reveal hidden explosives?

Researchers have developed a way to use regular Wi-Fi signals to screen bags for dangerous objects and chemicals It's an unfortunate truth that weapons and explosives in public places are an increasing problem, with some

Posted on:04-13 View:18
Breakthrough experiment beams audio messages across the room using onl...

LinkedIn he researchers use water vapor in the air to absorb light and create sound. By sweeping the laser they can create an audio signal that can only be heard at a certain distance from the transmitter, allowing it to be localized to one pers

Posted on:04-13 View:31
Self-charging battery stretches over skin like a Band-Aid to power wea...

A millimeter-scale battery will stretch over skin and possibly recharge wearables wirelessly Scientists have devised a method to power wearable electronics through a soft, millimeter-scale battery that may stretch over the skin like a Band-Aid. Led by

Posted on:04-13 View:37
Why doesn’t the US use 220V like everyone else in the world?

Common question about household electrical power supply It’s a common question tied to a couple of common misconceptions. First is the idea that the United States is the only country in the world to use the 120V 60Hz standard. The fact of the matter is that there are many oth

Posted on:04-13 View:36
What Is a Printed Circuit Board (PCB)?

This FEQ (Frequent Engineering Question) gives you essential information about the most important and widespread technique for converting a theoretical circuit into a functional physical device. We typically learn about, analyze, and design electrical or electronic circuits usin

Posted on:04-13 View:101
Technological progression and societal changes go hand in hand

As technology changes society, it causes society to change how it deals with tech Power is fundamental to progress, for nothing moves without energy. The problem is that such a ubiquitous infrastructure need becomes part of society. This means that technological change in the space is ofte

Posted on:04-13 View:20
Three steps to optimize SiC power devices

Layout optimization is the foundation of the design to avoid parasitic components that add noise or spikes to the applied voltages or currents As new power transistors such as SiC MOSFETs are being increasingly used in power electronics systems, it has become necessary to use special driv

Posted on:04-13 View:27
The Power of Smart Cities

According to data from the U.S. Census Bureau, a total of 10 U.S. cities have a population that has surpassed the 1 million mark. Of these 10 cities, California and Texas account for 60%, with each state being home to three cities each that have a population of over 1 million. In addi

Posted on:04-13 View:17
Medical wearable designs fuel improvements in energy harvesting

Energy harvesting from various sources will be used to charge a supercapacitor and/or a rechargeable battery to better leverage the benefits of ambient energy One of the main challenges with battery-operated connected devices is autonomy. An increasing number will have requirements for gre

Posted on:04-13 View:21
Hybrid chips may solve thermal, efficiency, and integration challenges...

Hybrid chips, combining silicon-based CMOS and compound semiconductor technologies, deliver the best of both worlds for fast 5G networks In most current devices, silicon-based CMOS chips are used for computing. Silicon in advanced communications systems is driven to its limits — limits tha

Posted on:04-13 View:31

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