Dave QZ
@daveqz.bsky.social
I looked it up. An EV produces a static EMF of .2 mT max at 2 cm away. Compared to the phone charger you mentioned, is max .3 mT. To have charging happen you need the phone to be <4 cm away. And that's intended charging.
So no, looks like the 7 in of gap to the road surface won't induce discharge.
So no, looks like the 7 in of gap to the road surface won't induce discharge.
August 28, 2025 at 3:06 PM
I looked it up. An EV produces a static EMF of .2 mT max at 2 cm away. Compared to the phone charger you mentioned, is max .3 mT. To have charging happen you need the phone to be <4 cm away. And that's intended charging.
So no, looks like the 7 in of gap to the road surface won't induce discharge.
So no, looks like the 7 in of gap to the road surface won't induce discharge.
Pulled up Melbourne on PlugShare and good grief. Right is the Boston area (it gets denser the more you zoom in) for comparison.
And I thought the US was slow...
And I thought the US was slow...
August 24, 2025 at 11:13 AM
Pulled up Melbourne on PlugShare and good grief. Right is the Boston area (it gets denser the more you zoom in) for comparison.
And I thought the US was slow...
And I thought the US was slow...
Who need NOAA when all we need is:
April 25, 2025 at 5:11 PM
Who need NOAA when all we need is:
Of course. That graph is for the world average.
If you pick a relatively cleaner region like the US (first graph) and UK (second), the difference is only greater.
The worst-case is coal-heavy India where BEVs still break-even with gas; third.
If you pick a relatively cleaner region like the US (first graph) and UK (second), the difference is only greater.
The worst-case is coal-heavy India where BEVs still break-even with gas; third.
February 1, 2025 at 12:17 AM
Of course. That graph is for the world average.
If you pick a relatively cleaner region like the US (first graph) and UK (second), the difference is only greater.
The worst-case is coal-heavy India where BEVs still break-even with gas; third.
If you pick a relatively cleaner region like the US (first graph) and UK (second), the difference is only greater.
The worst-case is coal-heavy India where BEVs still break-even with gas; third.
The green is the scale of EV battery mineral mining. The red is for crude oil.
I would consider this working towards considerably better.
I would consider this working towards considerably better.
January 31, 2025 at 3:29 PM
The green is the scale of EV battery mineral mining. The red is for crude oil.
I would consider this working towards considerably better.
I would consider this working towards considerably better.
Maybe I'm not understanding but they do include it. Is this not what you say is not being considered?
It's analogous to the carbon quotient of the fuel production for an ICE.
The base data is from GREET, which has been tracking it since the mid-1990s.
It's analogous to the carbon quotient of the fuel production for an ICE.
The base data is from GREET, which has been tracking it since the mid-1990s.
January 31, 2025 at 3:11 PM
Maybe I'm not understanding but they do include it. Is this not what you say is not being considered?
It's analogous to the carbon quotient of the fuel production for an ICE.
The base data is from GREET, which has been tracking it since the mid-1990s.
It's analogous to the carbon quotient of the fuel production for an ICE.
The base data is from GREET, which has been tracking it since the mid-1990s.
Even account for those, the lifetime price is far lower than gas.
January 31, 2025 at 10:22 AM
Even account for those, the lifetime price is far lower than gas.
Of course in an ideal world, public transit and cycles (human or electric) has the most benefit. But I wouldn't call them a "marginal improvement" for emissions.
If people are to have personal transport, it's still better EV than gas.
If people are to have personal transport, it's still better EV than gas.
January 26, 2025 at 1:09 PM
Of course in an ideal world, public transit and cycles (human or electric) has the most benefit. But I wouldn't call them a "marginal improvement" for emissions.
If people are to have personal transport, it's still better EV than gas.
If people are to have personal transport, it's still better EV than gas.
If we want to talk about the scale of mining battery minerals, here it is visually, compared to crude oil.
Battery mining is somewhere where the green arrow is.
Battery mining is somewhere where the green arrow is.
January 24, 2025 at 8:34 AM
If we want to talk about the scale of mining battery minerals, here it is visually, compared to crude oil.
Battery mining is somewhere where the green arrow is.
Battery mining is somewhere where the green arrow is.
25% of car sales being electrified in some way, forecasted for 2025 is nothing to sneeze at.
10% BEV, 15% hybrid.
These aren't sales increasing the pie. They're sales steadily eating away at the ICE slice.
www.coxautoinc.com/news/cox-aut...
10% BEV, 15% hybrid.
These aren't sales increasing the pie. They're sales steadily eating away at the ICE slice.
www.coxautoinc.com/news/cox-aut...
January 22, 2025 at 5:04 PM
25% of car sales being electrified in some way, forecasted for 2025 is nothing to sneeze at.
10% BEV, 15% hybrid.
These aren't sales increasing the pie. They're sales steadily eating away at the ICE slice.
www.coxautoinc.com/news/cox-aut...
10% BEV, 15% hybrid.
These aren't sales increasing the pie. They're sales steadily eating away at the ICE slice.
www.coxautoinc.com/news/cox-aut...
Erickson's right. BEVs produce the least amount of emissions.
I'm not sure the weight numbers are right? A Toyota RAV4 PHEV curb weight's 4,300 lbs. A Tesla Model YLR is 4,400 lbs.
www.iea.org/data-and-sta...
I'm not sure the weight numbers are right? A Toyota RAV4 PHEV curb weight's 4,300 lbs. A Tesla Model YLR is 4,400 lbs.
www.iea.org/data-and-sta...
January 19, 2025 at 10:04 PM
Erickson's right. BEVs produce the least amount of emissions.
I'm not sure the weight numbers are right? A Toyota RAV4 PHEV curb weight's 4,300 lbs. A Tesla Model YLR is 4,400 lbs.
www.iea.org/data-and-sta...
I'm not sure the weight numbers are right? A Toyota RAV4 PHEV curb weight's 4,300 lbs. A Tesla Model YLR is 4,400 lbs.
www.iea.org/data-and-sta...
The pictures I've seen, homes are burned to the foundation. The fire's so hot and widespread that regardless if it was a gas car or EV in the garage, there's nothing left.
January 16, 2025 at 4:06 PM
The pictures I've seen, homes are burned to the foundation. The fire's so hot and widespread that regardless if it was a gas car or EV in the garage, there's nothing left.
January 16, 2025 at 5:23 AM
The removable tanks are just there for topping off, it seems. NAMX themselves state there's an internal tank.
So not the "4 seconds" to get the full range.
Oh and that's been halved to 800 km, since they're going with hydrogen combustion now.
So not the "4 seconds" to get the full range.
Oh and that's been halved to 800 km, since they're going with hydrogen combustion now.
January 15, 2025 at 12:27 AM
The removable tanks are just there for topping off, it seems. NAMX themselves state there's an internal tank.
So not the "4 seconds" to get the full range.
Oh and that's been halved to 800 km, since they're going with hydrogen combustion now.
So not the "4 seconds" to get the full range.
Oh and that's been halved to 800 km, since they're going with hydrogen combustion now.
If you go to the NAMX website, they've already cut the range in half to 800 km.
They've switched to hydrogen combustion, which is terribly inefficient. Explains the halving of the range.
There's also a fixed internal tank, so it's not all through swapping of the shown tanks.
They've switched to hydrogen combustion, which is terribly inefficient. Explains the halving of the range.
There's also a fixed internal tank, so it's not all through swapping of the shown tanks.
January 15, 2025 at 12:23 AM
If you go to the NAMX website, they've already cut the range in half to 800 km.
They've switched to hydrogen combustion, which is terribly inefficient. Explains the halving of the range.
There's also a fixed internal tank, so it's not all through swapping of the shown tanks.
They've switched to hydrogen combustion, which is terribly inefficient. Explains the halving of the range.
There's also a fixed internal tank, so it's not all through swapping of the shown tanks.
Apparently not closely enough!
Though I thought time wasn't as much a factor as the charge cycles for the dendrites to build up.
And the Stanford study says it. Though the sweet spot still falls within the average car driver.
But yes, if you really barely drive anywhere, your point remains.
Though I thought time wasn't as much a factor as the charge cycles for the dendrites to build up.
And the Stanford study says it. Though the sweet spot still falls within the average car driver.
But yes, if you really barely drive anywhere, your point remains.
January 14, 2025 at 4:30 PM
Apparently not closely enough!
Though I thought time wasn't as much a factor as the charge cycles for the dendrites to build up.
And the Stanford study says it. Though the sweet spot still falls within the average car driver.
But yes, if you really barely drive anywhere, your point remains.
Though I thought time wasn't as much a factor as the charge cycles for the dendrites to build up.
And the Stanford study says it. Though the sweet spot still falls within the average car driver.
But yes, if you really barely drive anywhere, your point remains.
And gas cars don't have a history of spontaneously combusting, leaking and leaching chemicals into ground water?
Even before the fuel reaches the tank and while they're in use.
All these in parking lots, just washed away by rain into our drainage systems.
Even before the fuel reaches the tank and while they're in use.
All these in parking lots, just washed away by rain into our drainage systems.
January 14, 2025 at 4:05 PM
And gas cars don't have a history of spontaneously combusting, leaking and leaching chemicals into ground water?
Even before the fuel reaches the tank and while they're in use.
All these in parking lots, just washed away by rain into our drainage systems.
Even before the fuel reaches the tank and while they're in use.
All these in parking lots, just washed away by rain into our drainage systems.
I did. I'm not sure where you got the 1.6B mT number. It says right here 6.34B mT?
January 11, 2025 at 12:34 AM
I did. I'm not sure where you got the 1.6B mT number. It says right here 6.34B mT?
Reminds me of the 2014 RoboCop.
January 10, 2025 at 3:35 AM
Reminds me of the 2014 RoboCop.
Here's one for a wind turbine. Seems like a pretty good long-term trade-off to me.
January 9, 2025 at 5:36 PM
Here's one for a wind turbine. Seems like a pretty good long-term trade-off to me.
Exactly.
What's the other option if we can't meet this "needs to be 100% green" purity test? Just continue with the current methods, which are far worse?
"Perfection is the enemy of progress."
- Winston Churchill
What's the other option if we can't meet this "needs to be 100% green" purity test? Just continue with the current methods, which are far worse?
"Perfection is the enemy of progress."
- Winston Churchill
January 9, 2025 at 5:33 PM
Exactly.
What's the other option if we can't meet this "needs to be 100% green" purity test? Just continue with the current methods, which are far worse?
"Perfection is the enemy of progress."
- Winston Churchill
What's the other option if we can't meet this "needs to be 100% green" purity test? Just continue with the current methods, which are far worse?
"Perfection is the enemy of progress."
- Winston Churchill
I'll leave it at this.
If I'm getting ready for an event, I just have to slide this dot all the way to the right. More than enough range to get out. I don't need to make a dash for the gas station and either wait or hope it's not dry.
If I have home solar, then even better. Can't make gas at home.
If I'm getting ready for an event, I just have to slide this dot all the way to the right. More than enough range to get out. I don't need to make a dash for the gas station and either wait or hope it's not dry.
If I have home solar, then even better. Can't make gas at home.
January 9, 2025 at 4:14 AM
I'll leave it at this.
If I'm getting ready for an event, I just have to slide this dot all the way to the right. More than enough range to get out. I don't need to make a dash for the gas station and either wait or hope it's not dry.
If I have home solar, then even better. Can't make gas at home.
If I'm getting ready for an event, I just have to slide this dot all the way to the right. More than enough range to get out. I don't need to make a dash for the gas station and either wait or hope it's not dry.
If I have home solar, then even better. Can't make gas at home.
I wouldn't rely on Google AI as a definitive.
But either way, their tanks are going to be dry long before.
Why wouldn't the payment system work? Because if the power's out in the region, chances are the local broadband node or cell system is going to be out. They need the same power, no?
But either way, their tanks are going to be dry long before.
Why wouldn't the payment system work? Because if the power's out in the region, chances are the local broadband node or cell system is going to be out. They need the same power, no?
January 9, 2025 at 3:32 AM
I wouldn't rely on Google AI as a definitive.
But either way, their tanks are going to be dry long before.
Why wouldn't the payment system work? Because if the power's out in the region, chances are the local broadband node or cell system is going to be out. They need the same power, no?
But either way, their tanks are going to be dry long before.
Why wouldn't the payment system work? Because if the power's out in the region, chances are the local broadband node or cell system is going to be out. They need the same power, no?
To add: EV batteries can be recycled. So yes the mining isn't sunshine and lollipops. But at least we won't be doing it on such a massive scale as crude oil currently is.
Red is crude oil.
Green is battery material.
www.materialflows.net/visualisatio...
Red is crude oil.
Green is battery material.
www.materialflows.net/visualisatio...
January 9, 2025 at 12:44 AM
To add: EV batteries can be recycled. So yes the mining isn't sunshine and lollipops. But at least we won't be doing it on such a massive scale as crude oil currently is.
Red is crude oil.
Green is battery material.
www.materialflows.net/visualisatio...
Red is crude oil.
Green is battery material.
www.materialflows.net/visualisatio...