I could not read the actual SAE paper, it seemed paywalled, but honestly I do not see a reduction in fuel use of 25% as credible at all. The only way it seems possible to get close to that, is if your vehicle use is in fact almost all idling, which does not resemble my driving patterns in the least. That seems like just an impossible number. I mean, surely the car uses more fuel/time when it is moving than when idling, which means a 25% fuel reduction means that you are idling more than 25% of the time, probably at least 50% of the time. Maybe you are really in gridlock almost all the time.
I can't imagine that start/stop has any significant benefit for most driving. The engine is surely tuned best for the steady-state condition where it has been running, and not the startup. That goes for both fuel economy and emissions. So it almost certainly has to be worse on startup than cruise. I know starters are better than they used to be, but I have driven old worn cars that were sluggish to start, that would turn this new feature into a definite safety hazard. And yes, of course you do need the engine running to run the a/c, even if it does keep running with the engine off, it is draining the battery PDQ and you don't want to do this much. The battery is built to start the car, and keep low power things running without the engine, but the a/c does not qualify here.
Uh, no. Maybe lay off the AI. A VENOMOUS snake is one that can inject venom with a bite. A POISONOUS snake is one that will poison you if you eat it. Many snakes are venomous, I don't think that any of them are poisonous.
Second point of order... I don't believe that the original dossier about the rumors had any details about who peed on who or where. It could all well have happened on Epstein's island. The details were probably an invention of the internet.
Not to mention issues with cooling any outer space data center, which is probably a bigger problem than all the (otherwise accurate) issues that others posted all combined.
This. The Patriots may have been trying some shenanigans with the balls, but given, 1) The NFL completely failed to take any kind of meaningful measurements of the air pressure in the event (forgivable, they aren't experimental scientists), and 2) The entire point of having the teams manage the balls themselves was to allow them to get things just like the QB wanted, I can't find any amount of outrage at all on that one.
All the repetition of the same moves over and over supposedly really wear on you on a long climb like this. He did practice every move, and also consulted with the one person who had climbed this building before. One of the takeaways, is that buildings have to be dry, since they don't soak up water. Which is why this was delayed a day when it was raining.
Let's hope not. In 1940 the Danish completely rolled over for Hitler. That invasion was part of the assault on Norway, which was very ambitious and could well have failed. Although Denmark was pretty indefensible, Norway was not, and even a few hours of delay caused by Danish resistance might well have messed that up. But the Danes completely rolled over and let Hitler take both Denmark and Norway.
I thought the book we used in the undergrad class at UT explained this as good as it could be. Introduction to Elementary Particles, by David Griffiths. Griffiths is really good about explaining complicated theories. Every so often I go back and re-read these parts and try and understand it all. I think there is something important to discover still here. The symmetry breaking freezes out the weak force, so it is almost completely absent at the low energies where we live. But that weak force is special: It is the only force that changes kinds of particles, and it may (hopefully!) act on dark matter. Maybe it ties to dark matter, and the Higgs field and the symmetry breaking is part of how it works with dark matter. But nobody know yet.
I don't know what is going on in this thread, but the silver price has gone nuts this month. It is up like $15/oz in December. It is still supposedly hard to sell (refiners are backed up), but that is getting better.
A whole bunch of those miles seem like zero-passenger miles. I do see Waymo cars all over the place, but they very frequently seem to be completely empty.