Brexit, for once some facts.

[oldgroaner]

"
Brexit bill passes through Commons as MPs back Theresa May's plan without any amendments
The Government won the backing of 494 MPs, while 122 voted against the measure
Great day for the Brexit voters... let the fun begin... and division within the country grow worse and worse with every passing day, as of course May will try to keep what she is negotiating secret from the people, and who is to say they will be pleased with what she does?
How ingenious, allowing a woman with such an anti social attitude to hold our future in her hands.
And have no means of stopping or deflecting whatever she does for good or ill?
And afterwards to be left at the mercy of the Tory party in Government and rely on their goodwill to the public?
And still even at this late stage no one can give a good reason to indicate this will not be a disastrous move, can they?
Or for that matter how we can recover after it all derails?
great Fun! (but be prepared for trouble ahead!)

 

[oldgroaner]

RM magnetic nuclear resonance or microwave or a shining torch, it doesn't matter much. The principle of transmission is the same for all of them, you convert the energy at the source to a beam that traverses space with little loss then convert the beam back to energy. The problem is our body interacts with the beam (either magnetic or electro-magnetic, magnetic flux is converted to electric inside our body) so the beam has to be confined or our body protected.

Actually that is incorrect there is no BEAM in Magnetic Resonance just Magnetic FIELDS emanating from Poles and following the usual magnetic paths between poles, and these are tuned to particular frequencies to resonate with the poles of the receiver, which is placed within the envelope of the transmitters magnetic fields for the process of energy transfer.

One might ask the question; If this system is installed in a shielded position under the car and the road surface below and only activated when the system detects the car is immediately located over it and is otherwise inert.
What the heck is your body doing in the gap between the car and transmitter in the floor when this process is happening?

 

[Woosh]

OG, it is a general principle that unless you collimate the beam, the power density decreases by the distance power 3, you double the distance, you need 8 times more power at the transmitter.
Magnetic resonance as in MRI scanner, more correctly called nuclear magnetic resonance, is the excitation of the magnetic moment of atoms that have an odd number of neutrons+protons. You have to supply hundreds times more magnetic energy to the atoms to excite them in the first place. Just look at the size of the magnet coils in the MRI scanners. Most of the magnetic energy is lost the the space between the atoms. The magnetic resonance energy is produced by the atoms when the excitation decays and the atoms return to their quiet state. In MRI scanners, this energy is captured and measured to produce images. You can capture this type of stimulated energy like in lasers but there is no efficient way to power a car by the stimulated energy from the excited atoms.

 

[oldgroaner]

OG, it is a general principle that unless you collimate the beam, the power density decreases by the distance power 3, you double the distance, you need 8 times more power at the transmitter.
Magnetic resonance as in MRI scanner, more correctly called nuclear magnetic resonance, is the excitation of the magnetic moment of atoms that have an odd number of neutrons+protons. You have to supply hundreds times more magnetic energy to the atoms to excite them in the first place. Just look at the size of the magnet coils in the MRI scanners. Most of the magnetic energy is lost the the space between the atoms. The magnetic resonance energy is produced by the atoms when the excitation decays and the atoms return to their quiet state. In MRI scanners, this energy is captured and measured to produce images. You can capture this type of stimulated energy like in lasers but there is no efficient way to power a car by the stimulated energy from the excited atoms.

It would appear then that the MIT breakthrough is fiction, and the car makers working on prototypes of these systems are mistaken?
This system does not work on the principles you describe.

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[Woosh]

No, I did not say that. Scientists make progress all the time. Some marketing executives label this one a breakthrough because it suits them. This method is the same as microwave cooking. Take the word field for example. Everything in the universe is composed of zillions of interacting fields. It's just a description.

 

[flecc]

Not with you on the lightning strike as they would surely act the same as a lightning conductor?

Yes, but if the lightning current also travels through the tyres integral coils, the output will fry everything instantly, controller, motor, any battery and charger in circuit.
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[flecc]

I think the problem is more effectively than inefficiency, the coupling between the coils at large separations is poor

That is what I meant, inefficiency of transfer, just a different choice of words.
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[flecc]

are working on such a system

And these are the crucial words "are working on". I'm still waiting on developments from a decade and more ago that were once described in this way.

The fact is that as we get more advanced and research more exotic, the proportion of failed avenues of research grows. It's why modern drugs are so expensive, the few successful ones have to cover the huge costs of all the failed research avenues.

It's no different in our field as all the abortive anouncements on battery advances shows, and car makers try all sorts of possibilities in the hope of breakthoughs.
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[flecc]

What the heck is your body doing in the gap between the car and transmitter in the floor when this process is happening?

It's not the driver, it's the pedestrian he's just run over.
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[anotherkiwi]

Are we far enough off topic now?

 

[craiggor]

I don't trust politicians and I don't trust car company's. Here is Honda's animation of their new electric town car.

The battery animation is stolen from a thread on endless sphere.

 

[oldgroaner]

It's not the driver, it's the pedestrian he's just run over.
.

And what's he doing on the garage floor?[emoji1]

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[oldgroaner]

That is what I meant, inefficiency of transfer, just a different choice of words.
.

Allegedly they can transmit 3.5 kilowatts over 2 metres

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[oldgroaner]

Are we far enough off topic now?

Spoilsport[emoji1]

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[flecc]

Allegedly they can transmit 3.5 kilowatts over 2 metres

That sounds like a conservative manifesto!
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[flecc]

Are we far enough off topic now?

What topic?
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[Woosh]

Allegedly they can transmit 3.5 kilowatts over 2 metres

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This is what they did: they managed a distance of 8 times the coil diameter.
You could call it a breakthrough if you like.

https://en.wikipedia.org/wiki/Resonant_inductive_coupling

In 2007 a team led by Marin Soljačić at MIT used two coupled tuned circuits each made of a 25 cm self-resonant coil of wire at 10 MHz to achieve the transmission of 60 W of power over a distance of 2 meters (6.6 ft) (8 times the coil diameter) at around 40% efficiency.[9][19][31][37][40]

 

[oldgroaner]

This is what they did: they managed a distance of 8 times the coil diameter.
You could call it a breakthrough if you like.

https://en.wikipedia.org/wiki/Resonant_inductive_coupling

In 2007 a team led by Marin Soljačić at MIT used two coupled tuned circuits each made of a 25 cm self-resonant coil of wire at 10 MHz to achieve the transmission of 60 W of power over a distance of 2 meters (6.6 ft) (8 times the coil diameter) at around 40% efficiency.[9][19][31][37][40]

Hard then to explain this
"
Watertown, Mass. — December 20, 2016 WiTricity, the industry pioneer in wireless power transfer over distance, today announced it is working with General Motors (GM) to test an advanced wireless charging system prototype for electric vehicles. The companies are working together to test WiTricity’s Drive 11 park-and-charge system, designed for maximum efficiency and interoperability across vehicle platforms. The prototype testing focuses on wireless charging systems at 7.7 and 11 kW charge rates, capable of charging both battery electric vehicles (BEVs) and extended range electric vehicles (EREVs), and is intended to comply with standards proposed by SAE International’s J2954 Committee.

GM is committed to offering customers a variety of electrification solutions, including a great charging experience. To improve understanding of real world performance and the challenges integrating this technology into vehicles, GM is testing WiTricity’s prototype wireless charging system, which allows a driver to simply pull into his or her garage and automatically receive power from a source below the vehicle. The system design works across all plug-in electric vehicle platforms and can be deployed as a “floor pad” in a consumer’s garage, as well as installed under pavement to provide wireless charging in public and commercial parking lots.

“Wireless charging is a technology that our customers have told us they are interested in,” said Pamela Fletcher, GM Executive Chief Engineer – Electrified Vehicles. “By testing the WiTricity prototype system, we can ensure that wireless charging systems will comply with proposed industry standards, which benefits the entire industry and consumers.”

 

[oldgroaner]

This is what they did: they managed a distance of 8 times the coil diameter.
You could call it a breakthrough if you like.

https://en.wikipedia.org/wiki/Resonant_inductive_coupling

In 2007 a team led by Marin Soljačić at MIT used two coupled tuned circuits each made of a 25 cm self-resonant coil of wire at 10 MHz to achieve the transmission of 60 W of power over a distance of 2 meters (6.6 ft) (8 times the coil diameter) at around 40% efficiency.[9][19][31][37][40]

That was in 2007; this is NOW
Watertown, Mass. — December 20, 2016 WiTricity, the industry pioneer in wireless power transfer over distance, today announced it is working with General Motors (GM) to test an advanced wireless charging system prototype for electric vehicles. The companies are working together to test WiTricity’s Drive 11 park-and-charge system, designed for maximum efficiency and interoperability across vehicle platforms. The prototype testing focuses on wireless charging systems at 7.7 and 11 kW charge rates, capable of charging both battery electric vehicles (BEVs) and extended range electric vehicles (EREVs), and is intended to comply with standards proposed by SAE International’s J2954 Committee.

GM is committed to offering customers a variety of electrification solutions, including a great charging experience. To improve understanding of real world performance and the challenges integrating this technology into vehicles, GM is testing WiTricity’s prototype wireless charging system, which allows a driver to simply pull into his or her garage and automatically receive power from a source below the vehicle. The system design works across all plug-in electric vehicle platforms and can be deployed as a “floor pad” in a consumer’s garage, as well as installed under pavement to provide wireless charging in public and commercial parking lots.

“Wireless charging is a technology that our customers have told us they are interested in,” said Pamela Fletcher, GM Executive Chief Engineer – Electrified Vehicles. “By testing the WiTricity prototype system, we can ensure that wireless charging systems will comply with proposed industry standards, which benefits the entire industry and consumers.”

It seems progress has left your information behind; as it is hard to test a "Theoretical Prototype"
But relatively easy if you actually have one handy!

Unless of course this is a Confidence trick on the Scale of Brexit!

 

[oldgroaner]

what topic

Don't worry I have compared this with Brexit to satisfy the thought police see post
see post
# 11040