His letter is from 1986. Mercedes W123 and R107 clusters had triangles pointing in the filler direction in the 1970s already. (Granted, not quite as clear as his next iteration).
Readit Newsjanosch_123 commented on James Moylan, engineer behind arrow signaling which side to refuel a car, dies fordauthority.com/2025/12... · Posted by u/NaOH
janosch_123 commented on Can “second life” EV batteries work as grid-scale energy storage? volts.wtf/p/can-second-li... · Posted by u/davidw
Https://allye.com are assembling a 1 megawatt hour unit. I got a tour last week, super exciting.
They raised another $2.5M round too.
Fellten and Allye are the biggest two here in the UK I think.
Some good advice. It’s missing one of the most difficult topics: Performance Management.
Most first-time managers have already read a lot of advice about being humble, delegating, celebrating your team’s wins, and the other feel good topics.
If you want to write internet advice that gets upvoted and shared you almost have to avoid the difficult conversation topics and assume that the team is full of perfect people that the manager just needs to serve.
I’m in a semi-private peer group for managers and the number one most common struggle for new managers is their first encounter with employees who aren’t working unless a manager is standing over their shoulder, or who are causing problems within the team. Books like “The Managers Path” can help, but in my experience the best help is to find a more experienced manager you can talk to for advice. A lot of the difficult realities of managing people are messy or even painful and are often intentionally avoided in feel-good internet advice.
just ordered "The Managers Path" because of your post here, looking forward to read it.
janosch_123 commented on VPN use surges in UK as new online safety rules kick in ft.com/content/356674b0-9... · Posted by u/mmarian
The UK is becoming increasingly authoritarian in ways that feel increasingly antagonistic to the majority of the population, regardless of political party. Taxes are rising (with tax take falling), crimes are going unchecked, just mentioning increased immigration gets a lot of people's backs up, but as GDP per capita continues to stall and even fall, the pressure it puts on services is a factor for many. And we're seeing those with a few quid to rub together leave, but as long as those people leaving are straight, white males, or their families, they're being told "good riddance" regardless of the brain drain and loss of tax income.
On the NHS, I tried for years to push for improvements to switch to digital cancer screening invitations after they missed my mother (offering to build the software for free), which is now happening, but suggesting the NHS isn't perfect is against the religion here. My sister who works in NHS DEI hasn't spoken to me since publishing a book on it.
Every time someone with the finances, vision and ability leaves I think the situation gets a little bit worse, it increases the proportion of people remaining willing to put up with all of it. Anecdotally, many of my friends have already left, some of the older generation want to leave but feel tied in. My flight out is in 6 weeks. Good riddance, no doubt.
> My flight out is in 6 weeks
Where are you going?
That was my first thought. Fewer brake particles is great, but I’m guessing it won’t be enough to counter the increased tire wear.
Not sure about that. If you accelerate a 2t vehicle to 60mph and then decelerate it back to 0mph then they would stress the tyres in the same way, no matter if you do EV & regen, EV no-regen or ICE, right? (I am keeping the weight constant).
Prompted by your comment I had a look at vehicle weights and two facts stood out
- ALL new cars are getting heavier EVERY YEAR because we keep adding more stuff (average car weight, and average SUV weight trend upwards from 2016 to 2023)
- The average electric car is heavier than a petrol equivalent but is lighter than an SUV
Weight certainly a problem, but the focus on EVs for weight is generally blown out of proportion.
https://www.thisismoney.co.uk/money/cars/article-13588773/Ne...https://www.sustainabilitybynumbers.com/p/weighty-issue-of-e...
For DIY EV conversions (I built some cars) you usually hook up the "regenerate braking" to the brakelight switch.
So as soon as you tap the brake pedal just a little, you start regenerating and see the amps flow back into the battery (I have a little display on my dashboard). Only when you press the pedal further, do you start engaging the friction brakes.
I have no statistics on brake pad differences because we didn't build enough cars/didn't cover enough mileage to measure, but it is obvious that you would cut down on brake pad usage.
Everything I know about EVs and the tech behind it I share on: youtube.com/@foxev-content
Can you comment more on the complexity? Like, is it running wire harnesses everywhere, is it the power electronics, cooling, mechanical mounting, something else, all of the above?
Of course. It is an intriguing idea, but a local maximum.
- The panel sits at open-circuit voltage of 48V
- That then needs to be converted/boosted to 400V (conversion loss)
- The converter needs to talk to the BMS to make sure batteries can be charged at this moment (component that is live all the time and is a current draw)
- Need to think about it, but you want another set of contactors between panel and HV-Bus where the battery sits (current draw)
1km of driving is 150Wh so 1kWh gets you 6.6km or 4.1 mi
Let's be generous and say you have a 500W panel(punchy) for 8 hours at full blast (doesn't happen), you get 500W x 8 hrs = 4kWh. Lets say isolated converter loses you 10% so you are at 3.6kWh Thats 24km or 15mi of driving in perfect conditions.
2x Gigavac contactors, keep them closed costs you 24W, so that lowers the input further to 476W * 8hrs = 3.8kWh, less 10% = 3.42kWh ...
Someone who studied EE might be able to make this more accurate. Back of the napkin math, not totally impossible, but not worth adding it for a trickle charge. Adding components that can break, adding weight etc.
There are interesting solar cars out there where you reduce the weight heavily and fold out big solar sails. Then you are getting somewhere, for a city car you don't have enough surface. For an SUV or American Style Flatbed truck you have so much weight it's not worth it either.
I built my own electric cars and calculated if this would be worth it. Roof of car is curved and you get the conversion losses (needs to be bumped to 400V to charge batteries).
You add a lot of complexity for marginal gains. Peak time you get maybe 500W which doesn't go very far.
I haven't made video about solar yet, but I am sharing what I know on https://www.youtube.com/@foxev-content
Excellent! I lived on a boat like this for many years and never knew about the risk of sudden tsunamis.
I like that you can go under the trees.
janosch_123 commented on Duolingo CEO tries to walk back AI-first comments, fails htxt.co.za/2025/05/duolin... · Posted by u/_p2zi
Yeah the first thing I translated on DuoLingo was the Wikipedia article for Ubuntu.
I finished the Spanish course many years ago (is finishing still possible?)
Thanks for reminding me it had page translations, I did a few of those and enjoyed it! Shame it went.