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0answers
113 views

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 ...
18
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0answers
459 views

Can the health of an alkaline battery be determined by bouncing it?

I was just sent a YouTube video, which appears to demonstrate that one can determine the "health" of a battery (current voltage, useful lifetime remaining, etc.) by bouncing it on a level surface. A ...
14
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1answer
339 views

Does reading off a self-luminous tablet impact the quality of sleep?

I've heard claimed many times that reading an iPad in bed makes for worse sleep quality than reading a book or a Kindle with a bedside lamp, Possible explanations I've heard are because of the ...
3
votes
3answers
773 views

Can hot-plugging an HDMI cable damage the HDMI port?

I found this site on the Internet saying something to that effect: Warning!!.....Never connect and disconnect HDMI cables and equipment while your devices are powered on (hot plugging cables). The ...
18
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0answers
413 views

Is it dangerous to vacuum-clean motherboards (and other electronics)?

I've been informed that using the standard household vacuum cleaner's blower attachment to clean motherboards (and the insides of laptops and desktops in general) is dangerous due to the possibility ...
12
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0answers
361 views

Could phone and electronics batteries be recharged by a lightning strike?

I was reading this story about lightning that stuck a vehicle while the family was still inside: Utah family films car as it’s struck by lightning About halfway through the article is the following ...
2
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2answers
298 views

Do electronics have a startup cost?

There is a long held belief with some electricians that turning on an electric device requires a "startup" cost, or an overhead in the amount of power needed for it to start functioning normally. I ...
6
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0answers
461 views

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 ...
5
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4answers
5k views

Does mobile send signals when it's off?

I've heard that mobile phones send signals to the tower even when the mobile goes off so your location can be detected. Is this possible?
4
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0answers
208 views

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 ...
16
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3answers
1k views

Can you harvest energy from radio transmissions?

This video gives instructions on building a circuit to harvest energy from radio waves in the air using some pretty straightforward circuitry. The creator has another video showing such a circuit ...
6
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1answer
9k views

Can magnets damage LCD screens?

My guitar teacher once told me that leaving a magnet near a LCD screen will affect it. I was skeptical because I guess that he believes that because magnets can affect CRT screens. Here are some ...
18
votes
2answers
10k views

Does baking your graphics card fix it?

There's a tonne of articles online about fixing you graphics card by baking it in the oven. Supposedly this 'reflows' the solder to fix flaky connections. It's even been reported on sites such as ...
3
votes
1answer
568 views

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 ...
13
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1answer
9k views

Do ultrasonic cat repellents work?

Amazon sells roughly 355 different cat repellent products but judging by the consumer ratings, most of them don't actually work -- and even those that do, could be correlation rather than causation. ...
6
votes
1answer
2k views

Should we remove batteries from electronic devices when not in use?

When I bought a digital camera recently, the shopkeeper advised me "to remove the batteries when the camera is not used for a long time". I have heard this kind of thing for other devices also (like ...