russ_watters's latest activity
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russ_watters reacted to Herman Trivilino's post in the thread Li-Ion Battery Quality Report with
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I've had pretty good luck with them. Not so with the 18650's though. They seem to have declined in quality in the last few years. I... -
russ_watters replied to the thread Undergrad Why is thermal energy treated differently than other kinds of energy?.It's also not an arbitrary convention/just a name, like East/West or for that matter, positive and negative charge. You can't swap high...
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russ_watters reacted to haruspex's post in the thread Undergrad Why is thermal energy treated differently than other kinds of energy? with Like.
I don’t get the analogy. If East is defined as the side the Sun has always risen in recorded history, where a 'side' is defined by...
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russ_watters replied to the thread Is A.I. more than the sum of its parts?.We don't need to pre-identify the behaviors, only figure them out after the fact. It's pretty much a tautology that they can exceed...
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russ_watters reacted to Rive's post in the thread Is A.I. more than the sum of its parts? with Like.
The answer would be something no-ish, I think Unless some random behaviour is intentionally incorporated in programming, a computer is...
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russ_watters reacted to sophiecentaur's post in the thread Electric power distribution from powerplant to homes with Like.
That comment is a bit pessimistic. Reducing losses will help both supplier and customer. You'd be paying for losses anyway. But I'm an...
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They are the 'not without electronics' ones. A small Li-ion battery (at 3.7V) with a charging electronics and a step-down converter (to...
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russ_watters replied to the thread Li-Ion Battery Quality Report.That's interesting but there are a bunch of no-name 1.5V AA rechargeable Li-Ion batteries/chargers for sale on Amazon. Any thoughts on...
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Erm... As far as I know there is just no suitable Li-based chemistry for the usual voltages associated with the AA format.
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Erm... That's a bit different. Li-ion cells (rechargeable) works around 3.7V Standard AA (Zinc-Carbon, non-rechargeable) is around 1.5V...
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russ_watters replied to the thread Li-Ion Battery Quality Report.I'd been thinking of buying a new charger and batteries for AA devices. Looking online, it doesn't appear that any major manufacturer...
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russ_watters reacted to DaveE's post in the thread Undergrad Why is SI taught in US university physics courses instead of cgs? with Like.
Because cgs sucks? Sorry, JMHO. STEM students need to know about unit conversions, which they will do while they are cursing the authors...
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russ_watters reacted to haruspex's post in the thread Undergrad Why is thermal energy treated differently than other kinds of energy? with Like.
Clearly that is not the case. If you were to place two inert bodies in contact and observe the result that the warmer body grows warmer...
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russ_watters reacted to jbriggs444's post in the thread Undergrad Why is thermal energy treated differently than other kinds of energy? with Like.
Agreed. I like to point to Newton's original text from time to time. The second part is the one that really resonates with me. In...
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russ_watters reacted to Herman Trivilino's post in the thread Undergrad Why is thermal energy treated differently than other kinds of energy? with Like.
When Newton wrote about action and reaction he was referring to forces. It was the 1680's. The concept of energy, if it even existed at...
