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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[–] photonic_sorcerer@lemmy.dbzer0.com 9 points 1 year ago (3 children)

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

[–] Gsus4@mander.xyz 11 points 1 year ago
[–] Neato@kbin.social 5 points 1 year 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.

[–] photonic_sorcerer@lemmy.dbzer0.com 3 points 1 year ago (1 children)

Guess what's inside your wireless charging port!

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

[–] Neato@kbin.social 2 points 1 year ago (1 children)

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

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.

[–] SaltySalamander@kbin.social 4 points 1 year ago (2 children)
[–] ripcord@kbin.social 5 points 1 year ago (1 children)

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

[–] BearOfaTime@lemm.ee 7 points 1 year ago (1 children)

Which are just heavy gauge wires.

[–] ripcord@kbin.social 1 points 1 year ago

Gooooood point

[–] gregorum@lemm.ee 4 points 1 year ago* (last edited 1 year ago) (1 children)
[–] BearOfaTime@lemm.ee 5 points 1 year ago

Which is a wire.