@lowcarbondave
@lowcarbondave.bsky.social
Bit of an environmentally aware chap as well as a car enthusiast. Amidst a career change moving from Financial Planning to the green home energy transition sector.
My favourite AI has this to say:
“Veritasium didn’t say energy conservation is wrong—it showed that in an expanding universe, defining total energy is tricky because time symmetry breaks down. Locally, the law still holds; no perpetual motion loophole here.”
“Veritasium didn’t say energy conservation is wrong—it showed that in an expanding universe, defining total energy is tricky because time symmetry breaks down. Locally, the law still holds; no perpetual motion loophole here.”
November 25, 2025 at 6:29 PM
My favourite AI has this to say:
“Veritasium didn’t say energy conservation is wrong—it showed that in an expanding universe, defining total energy is tricky because time symmetry breaks down. Locally, the law still holds; no perpetual motion loophole here.”
“Veritasium didn’t say energy conservation is wrong—it showed that in an expanding universe, defining total energy is tricky because time symmetry breaks down. Locally, the law still holds; no perpetual motion loophole here.”
Sorry, but cobblers springs to mind.
Can you post a link to the relevant story?
Can you post a link to the relevant story?
November 25, 2025 at 6:26 PM
Sorry, but cobblers springs to mind.
Can you post a link to the relevant story?
Can you post a link to the relevant story?
Even they can be reprogrammed based on Uk based car theft YouTube’s I’ve watched. If it’s number plate cameras then lots of false plates will be used. Even more than now. If it’s a black box then I’m not sure I want the gov to know where I’ve been and how fast I got there.
November 25, 2025 at 5:42 PM
Even they can be reprogrammed based on Uk based car theft YouTube’s I’ve watched. If it’s number plate cameras then lots of false plates will be used. Even more than now. If it’s a black box then I’m not sure I want the gov to know where I’ve been and how fast I got there.
Are you saying the law of the conservation of energy can be broken? If so, then patent it quick. Become richer than Musk et al and sort of world poverty once and for all.
November 25, 2025 at 5:39 PM
Are you saying the law of the conservation of energy can be broken? If so, then patent it quick. Become richer than Musk et al and sort of world poverty once and for all.
Obvs the air flows far better through an open tube.
A less aerodynamic car has a higher Cd, and is less efficient. That’s why EVs are so slippery in their design language.
I forget what the point of all this was now. More drag = less efficiency = more energy used to drive the car. I think.
A less aerodynamic car has a higher Cd, and is less efficient. That’s why EVs are so slippery in their design language.
I forget what the point of all this was now. More drag = less efficiency = more energy used to drive the car. I think.
November 25, 2025 at 5:36 PM
Obvs the air flows far better through an open tube.
A less aerodynamic car has a higher Cd, and is less efficient. That’s why EVs are so slippery in their design language.
I forget what the point of all this was now. More drag = less efficiency = more energy used to drive the car. I think.
A less aerodynamic car has a higher Cd, and is less efficient. That’s why EVs are so slippery in their design language.
I forget what the point of all this was now. More drag = less efficiency = more energy used to drive the car. I think.
I suspect you’d need computational fluid dynamics to answer that, given an open vent leads into the cabin which has (marginally) increased pressure as a result.
A more simplistic model would be grab an empty loo roll. Blow through it. Now put your hand over the far end and blow through it.
A more simplistic model would be grab an empty loo roll. Blow through it. Now put your hand over the far end and blow through it.
November 25, 2025 at 5:36 PM
I suspect you’d need computational fluid dynamics to answer that, given an open vent leads into the cabin which has (marginally) increased pressure as a result.
A more simplistic model would be grab an empty loo roll. Blow through it. Now put your hand over the far end and blow through it.
A more simplistic model would be grab an empty loo roll. Blow through it. Now put your hand over the far end and blow through it.
Great job to be involved in Testing by the way. I’ve been in a very well driven 720s around Silverstone GP and Brands GP. Amazing.
And someone I know was driven around Barca by Alonso a few years back, in a break in f1 testing. That would be ridiculously good fun.
And someone I know was driven around Barca by Alonso a few years back, in a break in f1 testing. That would be ridiculously good fun.
November 25, 2025 at 5:29 PM
Great job to be involved in Testing by the way. I’ve been in a very well driven 720s around Silverstone GP and Brands GP. Amazing.
And someone I know was driven around Barca by Alonso a few years back, in a break in f1 testing. That would be ridiculously good fun.
And someone I know was driven around Barca by Alonso a few years back, in a break in f1 testing. That would be ridiculously good fun.
And isn’t the airflow through the 720 headlights purely aero? I dare say the senna is similar.
November 25, 2025 at 5:26 PM
And isn’t the airflow through the 720 headlights purely aero? I dare say the senna is similar.
Does it matter? The physics and thermodynamic laws won’t change.
The passages do indeed cool stuff, but given the choice the aerodynamicists would rather have smaller or no radiators. Obviously that’s impractical…
The passages do indeed cool stuff, but given the choice the aerodynamicists would rather have smaller or no radiators. Obviously that’s impractical…
November 25, 2025 at 5:25 PM
Does it matter? The physics and thermodynamic laws won’t change.
The passages do indeed cool stuff, but given the choice the aerodynamicists would rather have smaller or no radiators. Obviously that’s impractical…
The passages do indeed cool stuff, but given the choice the aerodynamicists would rather have smaller or no radiators. Obviously that’s impractical…
How will they do it? MOT only at three years old, so that isn’t really a good time to log the mileage.
They can’t force us to have a black box. Can they?
They can’t force us to have a black box. Can they?
November 25, 2025 at 5:21 PM
How will they do it? MOT only at three years old, so that isn’t really a good time to log the mileage.
They can’t force us to have a black box. Can they?
They can’t force us to have a black box. Can they?
Obvs a car isn’t parked in direct sunlight all day for a whole year! But even so it’s a tangible figure.
November 25, 2025 at 1:16 PM
Obvs a car isn’t parked in direct sunlight all day for a whole year! But even so it’s a tangible figure.
Over a year. Ask your preferred AI to do the maths. 200w panels in south of France, horizontally installed.
November 25, 2025 at 1:15 PM
Over a year. Ask your preferred AI to do the maths. 200w panels in south of France, horizontally installed.
8 deluxe was 2017 I think. With the then new Switch (1).
Many hours of fun playing it.
Many hours of fun playing it.
November 25, 2025 at 6:10 AM
8 deluxe was 2017 I think. With the then new Switch (1).
Many hours of fun playing it.
Many hours of fun playing it.
Senna & other similar cars use movable wings to create downforce (corners) or reduce drag (straights). If you had a turbine in the airflow, you would create drag and slow the car down. And weight which also slows the car down. And disrupt the air flow which the aero engineers wouldn’t want.
November 25, 2025 at 6:03 AM
Senna & other similar cars use movable wings to create downforce (corners) or reduce drag (straights). If you had a turbine in the airflow, you would create drag and slow the car down. And weight which also slows the car down. And disrupt the air flow which the aero engineers wouldn’t want.
Where does the motion come from? The electric motor and the battery. Chuck the question in your favourite search engine.
November 25, 2025 at 5:59 AM
Where does the motion come from? The electric motor and the battery. Chuck the question in your favourite search engine.
The 200W PV panels on the launch ioniq5 are said to generate upwards of 200kwh if the car is outside (no shade) in somewhere like south of France (ie sunny). That’s 600/700 miles of driving.
November 25, 2025 at 5:58 AM
The 200W PV panels on the launch ioniq5 are said to generate upwards of 200kwh if the car is outside (no shade) in somewhere like south of France (ie sunny). That’s 600/700 miles of driving.
Yes. Energy cannot be created so turning the turbine creates drag and needs extra energy from the battery. Then there are losses in the turbine generator etc (heat mainly), meaning you end up with less useable energy after fitting a turbine.
November 25, 2025 at 5:57 AM
Yes. Energy cannot be created so turning the turbine creates drag and needs extra energy from the battery. Then there are losses in the turbine generator etc (heat mainly), meaning you end up with less useable energy after fitting a turbine.
In winter we can put 100kWh heat into the house, let along cooking and the cars
UK. Fully electric house and two EVs.
UK. Fully electric house and two EVs.
November 24, 2025 at 3:48 PM
In winter we can put 100kWh heat into the house, let along cooking and the cars
UK. Fully electric house and two EVs.
UK. Fully electric house and two EVs.
My guess is that data is for hybrids.
Full EVs more likely to charge 50kwh+ a session in my humble opinion.
Full EVs more likely to charge 50kwh+ a session in my humble opinion.
November 24, 2025 at 3:47 PM
My guess is that data is for hybrids.
Full EVs more likely to charge 50kwh+ a session in my humble opinion.
Full EVs more likely to charge 50kwh+ a session in my humble opinion.
Agreed! Yeah would make bugger all difference when driving even on a v sunny day.
November 24, 2025 at 2:10 PM
Agreed! Yeah would make bugger all difference when driving even on a v sunny day.
That seems very unlikely. If the 12v got wet from a car wash, it would get wet when driving.
Unless you sprayed the water somewhere unwise like into the vents at the base of the windscreen.
Unless you sprayed the water somewhere unwise like into the vents at the base of the windscreen.
November 24, 2025 at 2:02 PM
That seems very unlikely. If the 12v got wet from a car wash, it would get wet when driving.
Unless you sprayed the water somewhere unwise like into the vents at the base of the windscreen.
Unless you sprayed the water somewhere unwise like into the vents at the base of the windscreen.
Eh? Most Ev’s have a battery capacity of 80kWh. Okay some newer smaller ones are less, but bigger cars have more.
15kwh charge at 3.5m/kWh would be a range of just 50 miles. Which wouldn’t be any use.
15kwh charge at 3.5m/kWh would be a range of just 50 miles. Which wouldn’t be any use.
November 24, 2025 at 1:56 PM
Eh? Most Ev’s have a battery capacity of 80kWh. Okay some newer smaller ones are less, but bigger cars have more.
15kwh charge at 3.5m/kWh would be a range of just 50 miles. Which wouldn’t be any use.
15kwh charge at 3.5m/kWh would be a range of just 50 miles. Which wouldn’t be any use.
The p45 ioniq5 has 200W I believe. Estimated generating if parked outside somewhere like south of France is over 200kwh a year. At an efficiency of say 3.5m/kwh, that’s over 700 miles. From being sat in the sun.
Hardly a waste of time I’d say.
Not so good in rainy UK (where I am).
Hardly a waste of time I’d say.
Not so good in rainy UK (where I am).
November 24, 2025 at 1:54 PM
The p45 ioniq5 has 200W I believe. Estimated generating if parked outside somewhere like south of France is over 200kwh a year. At an efficiency of say 3.5m/kwh, that’s over 700 miles. From being sat in the sun.
Hardly a waste of time I’d say.
Not so good in rainy UK (where I am).
Hardly a waste of time I’d say.
Not so good in rainy UK (where I am).