this post was submitted on 28 Aug 2024
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Nissan Motor Co. said it has developed a new type of paint that significantly reduces the temperature inside vehicles parked in direct sunlight.

The surface of a car coated with the innovative material remains up to 12 degrees cooler than that of a vehicle with standard paint, tests showed.

The company said the coating material can help rein in the temperature rise not only on the car's body but also in the vehicle when exposed to direct sunlight.

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[–] Ilovethebomb@lemm.ee 0 points 2 months ago (3 children)

Twelve degrees what? A degree Celsius is more than twice a degree in Fahrenheit.

State your units, FFS.

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[–] hannesh93@feddit.org 0 points 2 months ago

Also great for city climate since heated up cars are acting like a heat battery making it significantly slower for a city to cool down once the sun goes away

Ideally there would be no openly parked cars but I guess this is the next best thing

[–] kusivittula@sopuli.xyz 0 points 2 months ago (2 children)

can i paint my house with that?

[–] ABCDE@lemmy.world 0 points 2 months ago

There's already a 98% paint, not that cheap last I checked though.

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[–] daddy32@lemmy.world 0 points 2 months ago (3 children)

Nissan also detects you having sex in the car and phones the info home.

[–] ABCDE@lemmy.world 0 points 2 months ago (1 children)
[–] mbtrhcs@feddit.org 0 points 2 months ago (2 children)

Their privacy policy includes a provision that they can use the cameras and GPS to infer things such as sexual orientation, so yeah.

[–] ABCDE@lemmy.world 0 points 2 months ago (1 children)
[–] mbtrhcs@feddit.org 0 points 2 months ago (1 children)

I don't think they have interior cameras (although other manufacturers do), but the front and backup camera feeds provide plenty of information as well.

Then there's also this, if you need any more reason to be concerned.

[–] ABCDE@lemmy.world 0 points 2 months ago (1 children)

I don’t think they have interior cameras

Can just stop there. Unless people are banging on the bonnet, not sure what the point is.

[–] mbtrhcs@feddit.org 0 points 2 months ago (2 children)

If you read the linked article you will find that exterior cameras feeds are plenty invasive enough.

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[–] fern@lemmy.autism.place 0 points 2 months ago (2 children)

While this fucked up, documenting sexual orientation is not exactly recording sex. Someone could simply use GPS and see that the only place in the area that's open is the gay bar and infer from that, or even lip reading.

[–] AcesFullOfKings@feddit.uk 0 points 2 months ago (4 children)

Someone could simply use GPS and see that the only place in the area that’s open is the gay bar and infer from that, or even lip reading.

https://xkcd.com/1425/

[–] fin@sh.itjust.works 0 points 2 months ago (1 children)

I’m curious where that’s from? News, or you made up from privacy policy?

[–] daddy32@lemmy.world 0 points 2 months ago (1 children)

Mozilla's analysis if the policies, see my other comment in the thread.

[–] fin@sh.itjust.works 0 points 2 months ago (2 children)

Okay, I found one.

https://foundation.mozilla.org/en/privacynotincluded/articles/its-official-cars-are-the-worst-product-category-we-have-ever-reviewed-for-privacy/

But I guess it’s to clarify what kind of data could possibly be collected and not that they actively collect and use them. I guess Ford can do that too, although they don’t specify in their privacy policy.

They’re not interested in your sexual orientation.

[–] mihnt@lemmy.ca 0 points 2 months ago (1 children)

So fucking glad I got my car before they added all this shit.

It's going to prevent me from getting any EVs that come out that I can afford too. I'm not signing a fucking privacy policy for a car.

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[–] finley@lemm.ee 0 points 2 months ago* (last edited 2 months ago) (1 children)

Yeah, I know it’s an NSX. Deal with it.

[–] TheGrandNagus@lemmy.world 0 points 2 months ago (1 children)

What is the relevance here?

[–] finley@lemm.ee 0 points 2 months ago (4 children)

If you ever had balls, you’d know

[–] asbestos@lemmy.world 0 points 2 months ago
[–] Summzashi@lemmy.one 0 points 2 months ago
[–] IsThisAnAI@lemmy.world 0 points 2 months ago

JDM internet tough guy shit 🤣

[–] TheGrandNagus@lemmy.world 0 points 2 months ago* (last edited 2 months ago) (1 children)

Again, what does a somewhat overrated 90s Honda have to do with Nissan's paint options? And what's with the tacky body kit?

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[–] MTK@lemmy.world 0 points 2 months ago (1 children)
[–] davidgro@lemmy.world 0 points 2 months ago (1 children)

That typo reverses the meaning by being one letter off.

[–] MTK@lemmy.world 0 points 2 months ago
[–] radiohead37@lemmynsfw.com 0 points 2 months ago (4 children)

Is this revolutionary invention called white paint?

[–] vk6flab@lemmy.radio 0 points 2 months ago (1 children)

It's staggering to me the number of black cars being sold in hot countries like Australia. Not to mention just how hard they are to see against the background of a bitumen road.

[–] daddy32@lemmy.world 0 points 2 months ago (3 children)

In some countries, you get a penalty on insurance depending on the car color, with maximum penalty reserved for black cars.

[–] xavier666@lemm.ee 0 points 2 months ago (1 children)
[–] daddy32@lemmy.world 0 points 2 months ago

Lol. Wouldn't want to see that applied to people although I can imagine the rhetoric.

[–] Kuma@lemmy.world 0 points 2 months ago (3 children)

How is it with silver and grey? Do you get a heavy penalty for them too? If it rains, snow and/or are foggy can it be very tricky to see silver and grey cars.

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[–] 14th_cylon@lemm.ee 0 points 2 months ago (4 children)

This is because the substance artificially reproduces a process known as radiative cooling on the painted surface. A typical example of radiative cooling is a phenomenon where the ground releases heat to cool off.

Nissan worked with the Chinese enterprise Radi-Cool as it specializes in the creation of radiative cooling technologies and materials.

(...)

However, one obstacle remains: the paint is six times thicker than the usual coating on the car body surface. The substance is also more expensive, which would add to the total cost of a new vehicle.

That, in turn, makes it difficult for the coating material to be utilized for mass-produced passenger automobiles.

For this reason, Nissan is looking to commercialize the paint on ambulances and other specialized vehicles as the first step.

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[–] Snowcano@startrek.website 0 points 2 months ago

Why don’t they just make the whole ~~plane~~ planet out of the ~~black box~~ paint.

[–] Zwiebel@feddit.org 0 points 2 months ago (1 children)

How big is the difference between black and silver, metallic and non-metallic paint?

[–] Dungrad@feddit.org 0 points 2 months ago* (last edited 2 months ago)

It's surprisingly low. A German institute conducted a few experiments and the most extreme discrepancy was 1.5 degrees Celsius or something.

[–] Buffalox@lemmy.world 0 points 2 months ago (12 children)

I seriously doubt that, tests have been performed comparing black and white painted cars, and the difference was insignificant. The heat buildup in a car is due to the the sunlight entering through the windows.

[–] Ferris@infosec.pub 0 points 2 months ago (1 children)

trick is to paint the windows

[–] Buffalox@lemmy.world 0 points 2 months ago* (last edited 2 months ago) (5 children)

Also this is problematic:

12 degrees cooler

But by what scale? If it's Flaffenfeit, it's just half an ounce!!!

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[–] Venator@lemmy.nz 0 points 2 months ago

They should install automated blinds like some high end luxury cars have except make them out of that silvery windscreen sunshade stuff.

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[–] MerchantsOfMisery@lemmy.ml 0 points 2 months ago (10 children)

Windshield screens are the low-tech but far more effective method of keeping a car's interior cooler, typically by at least 20F when it's really hot out. Slightly inconvenient but unlike this paint, a windshield screen will actually make a difference.

[–] nyctre@lemmy.world 0 points 2 months ago (8 children)

Mythbusters did an experiment with a black car and a white car hitting in the sun. The black car was 12 degrees Celsius hotter. Claiming that the paint makes no difference is such a weird take. I thought this was common knowledge as well as many people I've met avoid darker colours in summer and such.

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