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Old 01-16-2019, 02:36 PM   #4551 (permalink)
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Quote:
Originally Posted by RedDevil View Post
If solar is cheap, light and robust enough to apply to the roof of an EV - why not? It can help keep the car cool in summer, it can prevent bricking the battery when the car isn't used for a long time. But it won't have a big effect on range.
Yet, any help, however small, is a benefit.

Stella Vie is super light and has a gigantic solar panel. Therefore it can potentially run hundreds of miles a day on solar alone. If your car has 4 times the drag and a quarter of the area at half the PV efficiency, only about 10 added miles remain.

The better batteries get, the less reason to mount PV panels on cars.
That's exactly it. Basically you've said if PV were better in every way, then it might be useful on a vehicle. There's currently a use for PV, but it's not for providing EV range, but instead maintaining 12v battery health and maybe ventilating the cabin (crack the windows instead?).

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Originally Posted by All Darc View Post
Exactly !!!

And with low weight and low drag, you don't need much batteries. And with the solar panel, in huge area, in a low weight car, being relevant due these condition as you said, the solar panel saves the need of a lot of batteries, since the solar output will be relevant for such car.
Yes, if you build an engineering marvel at great cost, that has almost zero utility, you can benefit from solar. We're talking about practical vehicles for the masses, not a university science experiment funded by grants.

The reason vehicle mounted PV isn't used to charge the traction battery on production vehicles is because it's a dumb idea, not because nobody has thought of it yet.

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Old 01-16-2019, 03:07 PM   #4552 (permalink)
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Originally Posted by aerohead
These are only for wholesale purchases by energy providers.
Quite a spread!
You used to be able to buy gasoline in Venezuela for 17 a gallon. Big AC is much like Big Oil.
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Old 01-16-2019, 04:00 PM   #4553 (permalink)
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Strength Through Joy reboot

If the United States wanted to,they could have a national competition for a kdf wagon,'People's Car',of rationalized design,which any automaker could produce.Sam' Club or Cosco could build them as well.A 'club' car,sold to members at cost.(you've already paid your membership!)
*An EV
*no carbon footprint
*charge at home.
*charge it anywhere you are(national charging infrastructure)
* spec-built.
*Cd 0.12 body,40-year design.Not negotiable.Infinite graphics allowed for aesthetics,but no alteration of the body shape.
*every part is standardized.For 40-years.
*active suspension
*active aerodynamics
*stripper model,wired for whistles and bells.Plug and play.
*interior design,anything you like,want,desire,all modular.(spend a little,spend a lot,it's up to you)
*Standardized battery pack,40-year dimensions.
*Quick-change pack (I witnessed this in 1995 at the Phoenix Solar-500)
*in less time than it takes to fuel an ICE vehicle,or recharge an EV ,you're on your way with a hot pack.(for road trips)
*wherever you go there are parts and service (it's a standardized national vehicle)
*every mechanic in the country can work on it
*no advertising expense.
*no annual styling change,other than colors and interiors.
*no additional R&D or tooling expenses (they're locked in for 40-years and paid off in 48-months)
*manufacturing cost is by the pound.Like hamburger.
*5-Star Safety features are locked in.NHTSA has no say after the design is locked in.
*The EPA has nothing to say,it's zero-pollution.
*no dealers(and associated expenses),buy it at a grocery store if you like
*as/or if R-R improvements come along,these better tires fit the first models,as well as the last.
*there will never be aerodynamic improvements,as this is achieved at day-1.
*ultimate economies of scale
*no salesperson,No need.Everyone already knows what the car is,and what it's going to be for another 39-years.It's the national car of the United States.
*no manufacturer will ever be surprised by a new regulation they'll have to comply with.
*like a Beetle or Model T,anything that fits today,fits 39-years from now.
* the car costs less each year,just like the Model T.
*Anyone on minimum wage can afford one.
*no car theft (why would they? they've already got their own!)
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Old 01-16-2019, 04:06 PM   #4554 (permalink)
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Big AC

Quote:
Originally Posted by freebeard View Post
You used to be able to buy gasoline in Venezuela for 17 a gallon. Big AC is much like Big Oil.
They already get 125% profit margins.If the try an abuse their privilege they can expect nationalization.
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Old 01-16-2019, 07:02 PM   #4555 (permalink)
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Quote:
*Cd 0.12 body,40-year design.Not negotiable.Infinite graphics allowed for aesthetics,but no alteration of the body shape.
....
*no annual styling change,other than colors and interiors.
Sounds like a time attack Volkhart-Sagitta. 'Infinite graphics' sounds like AI-driven optimized shapes for different use cases. Built-in kit cars and aftermarket upgrades.

Quote:
A 'club' car,sold to members at cost.(you've already paid your membership!)
Today this would be administered through GoFundMe, or some analog. Smart contracts on a blockchain.

Plus it's an opportunity reclaim the whirling-propellor thingie from that failed political party from the last century. Maybe if we had a Hindu President?
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Old 01-18-2019, 06:57 PM   #4556 (permalink)
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Let me get the lights

No posts for 48hrs, every thread goes zombie eventually.

A solar nano-nova is a much more interesting design problem than mere rising temperatures. The latest episode from Suspicious 0bservers is about wind. It divides the the globe into three [five?] zones because the change in angular momentum, if the crust decelerates, has more effect at the equator. For one value of un-survivable apocalypse the zones are — at least one 100mph wind at the poles, multiple 150-300mph winds at mid-latitudes and at least one 1000mph wind at the equator.

Surviving a 1000mph wind (with gravel) is a very tight design constraint, but 150-300mph winds sounds achievable. It would be a low-arched dome with a significant [ablative] ground cover and wedge-shaped berms occluding the entrance or windows. A detail cribbed from nuclear blast proof designs.
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Old 01-19-2019, 03:13 PM   #4557 (permalink)
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nano-nova

[QUOTE=freebeard;589026]Let me get the lights

No posts for 48hrs, every thread goes zombie eventually.

A solar nano-nova is a much more interesting design problem than mere rising temperatures. The latest episode from Suspicious 0bservers is about wind. It divides the the globe into three [five?] zones because the change in angular momentum, if the crust decelerates, has more effect at the equator. For one value of un-survivable apocalypse the zones are at least one 100mph wind at the poles, multiple 150-300mph winds at mid-latitudes and at least one 1000mph wind at the equator.

Surviving a 1000mph wind (with gravel) is a very tight design constraint, but 150-300mph winds sounds achievable. It would be a low-arched dome with a significant [ablative] ground cover and wedge-shaped berms occluding the entrance or windows. A detail cribbed from nuclear blast proof designs.[/
I watched a 24-lecture series on Radio Astronomy,by the lead astronomer at the US National Radio Observatory.
Evidently,our type of star is not physically capable of any form of nova-type event,as occurs with large,fast-burning stars which blow off their surface,then collapse into a neutron-star or black-hole,maintaining jets of relative velocity ions or reverberating shockwaves of gas and dust.
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Solar flares propagate as spherical shockwaves,which have an inverse-square power function.1/divided by the radius-squared.
You can calculate the difference in power of a solar flair at Earth's surface,by comparing the surface area of a sphere with a radius of 93,000,000 miles,compared to the surface radius of the Sun's photosphere.
It gives you the dilution factor of the energy we'd encounter here on Earth,as compared to the energy leaving the Sun.It's a pittance.
Any ions reaching the ionosphere would mostly be shunted into the poles for spectacular aurorae,by the action of the magnetosphere.
Actual energetic 'dust' particles would succumb to aerodynamic vaporization as they came in through an increasingly-dense atmosphere(Space Shuttle Columbia),precipitating out as ash.
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A coronal mass ejection would extinguish all life except for perhaps some microbial forms deep underground.
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Earth IS overdue for a Gamma-ray burst from a supernova,and if we were to be in the path of one of those,it would sterilize the Earth.
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But as to a mini-nova,science says that it's impossible.
Red Dwarf,one day,absolutely.
We'll be long extinct by the time that happens,as Earth will have long moved beyond the 'Goldi-locks zone' of habitability.
I hate it when that happens!
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Old 01-19-2019, 05:09 PM   #4558 (permalink)
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I was coming back to The Lounge to start a new thread called Ecomodding The Planet but I see that this one's still alive. A micro-nova would be a Black Swan event, but would explain the 6000-year periodicity in the geologic record.



Re-green the Sahara and get 6x the food available to humanity? He starts with nano-particulate clay and biochar and (typically for Isaac Arthur) ends up with mirrors in space.

For balance I listened to Dr. Steve Turley — CS Lewis: Prophet of Globalization. C. S. Lewis was a contemporary of Orwell and Huxley. It's an hour of talk (findable on Youtube) but he concludes that the way forward (into the past) is through education and quotes John Ruskin and Tolkien.

Quote:
Your scientists were so preoccupied with whether they could, they didn't stop to think if they should.
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Old 01-19-2019, 05:35 PM   #4559 (permalink)
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6000-year cycle

Quote:
Originally Posted by freebeard View Post
I was coming back to The Lounge to start a new thread called Ecomodding The Planet but I see that this one's still alive. A micro-nova would be a Black Swan event, but would explain the 6000-year periodicity in the geologic record.



Re-green the Sahara and get 6x the food available to humanity? He starts with nano-particulate clay and biochar and (typically for Isaac Arthur) ends up with mirrors in space.

For balance I listened to Dr. Steve Turley CS Lewis: Prophet of Globalization. C. S. Lewis was a contemporary of Orwell and Huxley. It's an hour of talk (findable on Youtube) but he concludes that the way forward (into the past) is through education and quotes John Ruskin and Tolkien.
So far,I've not seen any mention of a 6,000-year cycle in the geologic record mentioned in the science journals.
And if it's supposed to be associated with a 'micro-nova',it would have never have gotten got past a jury of peer-review.
The Sun cannot produce such an event.It's structurally impossible.
And there is no such thing as a repeating nova,they're a one-shot event.The star is gone afterwards.
There are no black swan events with respect to steller physics mentioned in astronomy.Every phenomena has been pretty well explained as far as I know,within a year of the state-of-the-art.
Education is a good idea.We presently don't have any.
Globalization is another good idea,as we face challenges of global scale.
Terra-forming the Sahara would be challenging.Seems like we'd be looking at geologic time frames.
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Old 01-19-2019, 06:46 PM   #4560 (permalink)
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Nope, repeating mini nova stars have been known about for quite a while now.

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