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.
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Does pulse width modulation (PWM) sensitivity exist in the 362-500Hz frequency range?
Pulse width modulation is a technique used to dim LEDs in LED screens - effectively by turning them on and off at full strength at a high frequency.
Some people claim that they are sensitive to the ...
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Does this "reverse microwave" cool food "without electricity and is 100% sustainable"?
A recent Eco News article says:
The “reverse microwave” is already a reality: it works without electricity and will revolutionize our life
[...]
Imagine a reverse microwave to cool food instead of ...
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Was an Alaskan college student expelled three days after refusing to sell a landmark heating discovery to industry?
According to a recent advertisement named Nov 03 making its rounds on YouTube (I saw it today attached to another video I wanted to watch), a college student named Martin from Fairbanks, Alaska was ...
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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 ...
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Do 4K displays use more power, because it is hard for the backlight to shine through those super tiny pixels?
I was watching Linus reviewing the 2020 MacBook Air and he said about the competing laptops that 4K was pointless on a 13" laptop and that it just hurts the battery life, because it's harder for the ...
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Does using yellow paper hide the yellow tracking dots that commercial printers put on anything you print? [closed]
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 ...
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Did "hundreds of birds" fall out of the sky in the Netherlands due to a 5G test? [duplicate]
A conspiracy news site claims that (emphasis added):
Hundreds of birds have fallen from the sky in The Hague, the Netherlands, during a 5G experiment to see how large the range was and whether the ...
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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, ...
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Does turning the lamp in my classroom off and on use more energy than it being turned on for 30 minutes?
My physics teacher regularly said to our class:
Turning these lights [pointing to the ceiling of the classroom] off and on uses more energy than
leaving them on for 30 minutes.
Is this true?
I ...
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Have people died by being shocked through the headphone cord of their cell phone?
The headline of an article in Vice magazine claims that "A 16-Year-Old Has Died After Being Electrocuted by His Headphones"
Last week, a teenager was electrocuted to death while listening ...
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Is keyless theft/relay theft a practical threat for vehicles with fob/keyless entry?
Some sites, such as AutoExpress, are warning about a method of breaking into vehicles with keyless entry by capturing and relaying the fob's signal.
To quote AutoExpress:
The process criminals use ...
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Does fully discharging a Lithium-based battery reduce its lifespan?
According to Battery University, the less you allow a Lithium-based battery to discharge before charging it again, the less wear it will undergo and therefore the longer lifespan it will have. (e.g. ...
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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 ...
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Killed by 9V battery (via multimeter)
I found a Darwin award story claiming that someone was killed by pushing the leads of a Simpson 260 into his skin in ohmmeter mode. Furthermore, the story claims it is based on an unnamed US Navy ...
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Does Tesla's 70 kWh battery have 63 kg of lithium and if so, why? [closed]
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 ...
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