Questions tagged [electronics]

Electronics deals with electrical circuits that involve active electrical components and associated passive interconnection technologies. Use this when asking about electronic devices, electronic design and use (or misuse) of some devices.

Electronics deals with electrical circuits that involve active electrical components such as vacuum tubes, transistors, diodes and integrated circuits, and associated passive interconnection technologies.

Commonly, electronic devices contain circuitry consisting primarily or exclusively of active semiconductors supplemented with passive elements; such a circuit is described as an electronic circuit.

Source: Wikipedia - Electronics

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Is it possible to fix stuck LCD pixels using flashing colours?

The LCD of my $700 smartphone has a stuck subpixel (blue, almost invisible due to the high screen resolution). There are literally dozens of apps that claim to fix stuck pixels. For example: Here's a video that apparently fixes them by flashing…
Magnetic_dud
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Terabytes of data generated by Boeing Jet every hour

2010 article from gigaom (http://gigaom.com/2010/09/13/sensor-networks-top-social-networks-for-big-data-2/ Sensor Networks Top Social Networks for Big Data) says that twin engine Boeing Jet aircraft generates lot of information, 40 terabytes per…
osgx
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Can an RFID tag be identified at distance in the real world?

For example, this guy says: To that end, the ZRK [Japanese alien ID card] has an embedded IC Chip with RFID technology, which, as I have argued for years now, is a means to remotely track NJ [non-Japanese]] in a crowd and beef up racial profiling.…
Ken Y-N
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Are Japanese capacitors more reliable in general?

Motherboard and PSU manufacturer's marketing department typically like to highlight the fact that they use Japanese capacitors, and there are even videos on Youtube and some articles about how to identify if a capacitor is Japanese. Is there any…
Ken Li
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Do sparks from a cigarette lighter fix dead zones on touch screen?

There are many forums posts and videos on the "lighter trick" which fixes touch screens dead zones (at least temporarily) such as The YouTube video Nokia Lumia Touchscreen Dead Zone Fix With Igniter (Lighter) purports to show a phone with a large…
Symmetry
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Does the Sion electric car solar cells provide enough charge for up to 30km travel per day?

Sonomotors have an electric car, the Sion. They claim that this car use its own solar-cells to charge the batteries in one day sufficient to drive up to 34km. Their information sheet says: Thus, under ideal conditions, up to 34 kilometers of …
james
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Did Marconi steal and patent Jagadeesh Chandra Bose's wireless technology?

https://web.archive.org/web/20161026225031/http://indiainnings.in/108Facts/marconi This is an excerpt from a books called 108 Facts eternally India As early as 1885, J. C. Bose had demonstrated to the public of Calcutta about his technology. He…
kuwami
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Does Tesla's 70 kWh battery have 63 kg of lithium and if so, why?

I have found information that Tesla's 70 kWh battery pack has 63 kg of lithium: https://electrek.co/2016/11/01/breakdown-raw-materials-tesla-batteries-possible-bottleneck/ Considering there's only 13 million tonnes of lithium reserves, this would…
juhist
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Does using yellow paper hide the yellow tracking dots that commercial printers put on anything you print?

I just learned about those yellow dots printers put on paper that the government uses to track you in case it doesn't like what you're printing. Does anyone know if using yellow paper like this in order to prevent the tracking dots from being…
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Can you power a smartwatch by your body heat?

I stumbled across this indiegogo page for a new kind of smartwatch. It promised to that you never have to charge it because it will be powered by your body heat. Now i'm wondering, can you really generating enough electrical power by this for…
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Does turning off a light truly help the environment?

I have heard that a power plant will produce the same amount of power no matter what amount of electricity is being used. If this is the case, turning off a light bulb would not help reduce the production of green house gases. If you turned many…
Eric Johnson
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Can a "special resistor" save a water heater tank from rust?

The Rheem water heaters say The Rheem Performance Platinum 50 Gal. Electric medium water heater provides an ample supply of hot water for households with 3 to 5 people. This unit comes with two 5500-Watt stainless steel heating elements and an…
Evan Carroll
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Is the risk of explosion increased by calling and charging a cell phone at the same time?

I have often heard that charging a cell phone and calling in the same time may cause the cell phone to explode. Here is a Facebook page that has pictures of what is claimed to be one such example. [Caution: pictures may be distressing and may not…
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