For Li-ion cells, you need that empty space for cooling of the battery cells anyway.
And Tesla has demonstrated that cylindrical cells can contribute to the structure in a structural battery pack.
So for Li-ion I don’t think cylindrical cells are worse. There’s just different trade-offs.
But yeah, one of downsides it can be hard or impossible to replace individual cells if they have problems.
And in practice, you'll have modules of sections of the battery for repairing which drops the efficiency to below 90%.
[1] https://en.wikipedia.org/wiki/Circle_packing#Densest_packing
What if you are on those 10 poor kids he mentioned ?
I don't agree that OP statement is "crass". It's a very pragmatic and important question we have wrestle with.
There is always a some kind of moral dilemma: should you spent millions to try to extend extremely I'll person or help with that money to some healthy poor children?
Being bullish on excess capitalism during a slow down doesn't seem like a no-brainer play to me.
But to each their own.
Realistically, I'm just not sure how much growth Apple has left unless India becomes a gigantic market and pulls of a China miracle of its own.
It's already by a large margin the largest private company in the world...
First thing, Apple is the smallest loser in this upgrade cycle. Being only downed 11% compared to downed 37% for Google.
Second, the only manufacturer growing is Motorola. Not Pixel/Next.
[1] https://www.eia.gov/energyexplained/coal/use-of-coal.php#:~:....
It's horrible.
The underlying "hidden variable" might just be "poverty". So the causal relation would be something like:
Poverty -> Stress -> Faster biological ageing
Poverty -> Renting private homes
https://hsm.stackexchange.com/questions/8173/did-maxwell-ori...
The answer also includes a link that shows many other representations including Einstein's "4d generally covariant tensor calculus".
The point is that the most common formulation today is not the one Maxwell made (with 12 equations). The idea is preserved, but it was Gibbs and Heaviside that formulated the current 4 equation representation.