this post was submitted on 29 Nov 2023
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Detroit is now home to the country's first chunk of road that can wirelessly charge an electric vehicle (EV), whether it's parked or moving.

Why it matters: Wireless charging on an electrified roadway could remove one of the biggest hassles of owning an EV: the need to stop and plug in regularly.

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[–] [email protected] 9 points 11 months ago (3 children)

You know what other form of transportation wirelessly recieves power? Trains.

[–] [email protected] 11 points 11 months ago
[–] [email protected] 5 points 11 months ago (1 children)

Not wireless. Overhead contact lines are wires they just skim along them.

Comparison for this would be a metal brush dragging the ground over electrical contacts to maintain connection. Which would be a third rail on roads, very dangerous.

[–] [email protected] 3 points 11 months ago (1 children)

Guess what's inside your wireless charging port!

The point is, there's no physical connection being made.

[–] [email protected] 2 points 11 months ago (1 children)

... Yes there is in trains. Not in wireless charging. I was correcting your comparison.

[–] [email protected] 0 points 11 months ago

Electric trains gather energy by running a conductive element along suspended wires. No connection made.

Wireless chargers charge devices through induction, in which a coil of wire produces a magnetic field, inducing a current in the wire coil in your device. Both have wires, neither make connections, we call both wireless.

[–] [email protected] 4 points 11 months ago (2 children)
[–] [email protected] 5 points 11 months ago (1 children)

The ones I have at home get it through the tracks.

[–] [email protected] 7 points 11 months ago (1 children)

Which are just heavy gauge wires.

[–] [email protected] 1 points 11 months ago

Gooooood point

[–] [email protected] 4 points 11 months ago* (last edited 11 months ago) (1 children)
[–] [email protected] 5 points 11 months ago

Which is a wire.