Recent content by trebor79

The freight derailment at Ely went done distance too and ended up causing the route via Soham being closed for a long time as a bridge had to be rebuilt.

:rolleyes: Much less likely (like 80 times less likely) than an ICE vehicle. Spaces near the building are usually reserved for disabled, parent and child etc. you need somewhere for the electrical cabinet and you want to minimise cable runs for cost reasons.

And you wouldn't ever charge a Tesla at a non Tesla DC charger unless you're really desperate. £0.79/kWh is not the right price for comparison, they range from £0.20-£0.45 depending upon location and time of day.

Plus no servicing and virtually no maintenance.

When I preheat and defrost my Tesla in the middle of winter it will pull 7kW when plugged in, but that drops to about 1.5-2kW after not very long. When driving waste heat from the motors etc is scavenged and used for cabin and battery heating, with the heat pump doing the rest.

They are selectively using the most expensive public charging they can find. Even away from home a lot I never pay the 90p/kWh these guys base it on. So not exactly lying, but cherry picking. They also conveniently ignore the basically zero servicing costs So what? Modern cars weigh more than...

No, it does not. The compressive force comes from longitudinal expansion and that is the same regardless of cross-sectional area.

No. But they are much less imperfect than inefficient ICE spewing carcinogenic combustion products into the air we breathe. Total piffle. ICE is many times more expensive to run, and awful to drive compared to electric. Hyperbolic nonsense is not helping your argument. Have you actually...

Indeed, tyres on my Tesla (and I have a heavy right foot) last over 50,000 miles. Tesla model 3 weighs less than a BMW 3 series. Maybe. But that's all about suspension set up and can afflict ICE cars. On fact EVs with the battery in the floor tend not to roll. So what? So long as the range is...

No. Correct. Is it easier to buckle a thing section or a thick section, The thin section obviously. The buckling force applied is determined by the longitudinal expansion, which is the same at a given temperature for both thin and thick sections..

I'm not sure it's as simple as that. Certainly in the early days Tesla supercharging was subsidised as a way to sell cars - eg free supercharging for life. My understanding is that discharging is cheaper now because Tesla builds their own charging requirement, so it's all vertically integrated...

Perhaps, but we were talking about buckling in hot weather. If the rail is stressed to the same value it makes no odds. Indeed. I was exceedingly poor at calculating it even for simple sections.

Stress is exactly the same

The longitudinal expansion and strain will be the same as a thinner section rail for a given temperature difference. The thicker section means the rail can withstand higher forces.

Why was is ever done in the first place?