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Old 08-11-2017, 07:49 PM
 
Location: Cannes
1,853 posts, read 777,532 times
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I am meaning a time where energy lines get replaced by wireless transmitters
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Old 08-12-2017, 08:42 AM
 
Location: Washington DC
220 posts, read 62,149 times
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From what I know Starbucks began four years ago to introduce the wireless fot iPhones.
If Apple would introduce the wireless to charge laptops I would definitely upgrade my MacBook.
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Old 08-12-2017, 02:17 PM
 
Location: HoCo, MD
3,571 posts, read 6,816,925 times
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Quote:
Originally Posted by survivingearth View Post
I am meaning a time where energy lines get replaced by wireless transmitters
As in power lines? Not a physicist, but wouldn't that create fairly large electromagnetic fields?

Quote:
Originally Posted by Calwine View Post
From what I know Starbucks began four years ago to introduce the wireless fot iPhones.
If Apple would introduce the wireless to charge laptops I would definitely upgrade my MacBook.
I believe the 8 will be the first iPhone to natively support wireless (Qi) charging. Samsung, Google, and Microsoft has been supporting it for a few years now.
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Old 08-12-2017, 03:58 PM
 
Location: New England
1,553 posts, read 469,835 times
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Quote:
Originally Posted by survivingearth View Post
I am meaning a time where energy lines get replaced by wireless transmitters
We can transmit power via microwave some distance. The danger would be if the angle of the transmitter was changed by wind, cold, act of god or man, it could roast people alive as if they were in a microwave oven.

Air is not the best conductor of electricity, and we will likely require wires until a new power delivery paradigm is discovered. At best some small devices, electric toothbrushes, electric razors, some cell phones, can use electromagnetic induction to charge. These must be very proximal to a power source, but the device may not need a direct wired connection.
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Old 08-12-2017, 07:50 PM
 
Location: No Coordinates Found
1,018 posts, read 176,376 times
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Samsung Galaxy S8 and S8+ already have this capability
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Old 08-12-2017, 08:49 PM
 
Location: Westwood, MA
2,899 posts, read 3,733,226 times
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Quote:
Originally Posted by survivingearth View Post
I am meaning a time where energy lines get replaced by wireless transmitters
Power lines? I don't think that's ever going to be practical. Wireless energy transfer is just too inefficient. The only exception would be for situations when wires are completely impractical, such as with a satellite.
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Old 08-14-2017, 06:57 AM
Yac
 
5,472 posts, read 5,692,052 times
This is one change I am really waiting for - wireless energy transfer. Not sure if it's at all possible, but judging by how much wireless data transfer change the world, and how small a segment of our lives it is compared to things that need electricity..
This would potentially change our lives more than the steam engine. Unfortunately from what I read online, being the most optimistic about it, we're still quite a bit away from achieving wireless energy without a massive energy loss..
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Old 08-20-2017, 06:08 AM
 
7,411 posts, read 7,654,882 times
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Quote:
Originally Posted by functionofx View Post
We can transmit power via microwave some distance.
Following World War II, the idea of using microwaves to transfer power was researched. By 1964, a miniature helicopter propelled by microwave power had been demonstrated.

In 2015, researchers at the University of Washington introduced power over Wi-Fi, which trickle-charges batteries and powered battery-free cameras and temperature sensors using transmissions from Wi-Fi routers.

Wi-Fi signals were shown to power battery-free temperature and camera sensors at ranges of up to 20 feet.

It was also shown that Wi-Fi can be used to wirelessly trickle-charge nickel–metal hydride and lithium-ion coin-cell batteries at distances of up to 28 feet.
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Old 08-21-2017, 12:18 PM
 
10,580 posts, read 15,591,733 times
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Quote:
Originally Posted by MyGoldenLife View Post
Samsung Galaxy S8 and S8+ already have this capability
The Nexus line had it in 2013 but I don't think it qualifies as the large scale the OP is asking about.
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Old 08-24-2017, 01:05 AM
 
6,731 posts, read 1,775,524 times
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Quote:
Originally Posted by jayrandom View Post
Power lines? I don't think that's ever going to be practical. Wireless energy transfer is just too inefficient. The only exception would be for situations when wires are completely impractical, such as with a satellite.
call it lighting, but i rather not be hit be it everytime i need to charge a battery
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