Direct solar may sound nice and work fine in small scale, but collectors would have to cover great areas to be effective
The total world energy consumption is somewhere around 100PWh/year. That's around 274TWh/day. The sunlight hitting the Earth is around 1kW/m^2, so 8kWh/m^2 assuming 8 hours of sunlight. If you assume 100% efficiency in conversion (totally impossible, but we'll start there and refine later), then that means that you need about 3.45E10 m^2 of land devoted to solar power. That's a square about 185km on each side. If you assume 10% efficiency (mass produced photovoltaics are 12-25% these days), then you need an area about 342000km^2, or about the area of Germany, to power the entire world. Now, given the efficiency of power distribution, you probably wouldn't want to put it all in one place, but you could easily fit solar panels enough that, even with transmission losses, you could power all of North America in Utah or Texas without anyone noticing. The difficulty is not the generation, it's the storage.
and Nadella has been replaced
Any sources for this? According to Wikipedia, he still is the current CEO of Microsoft.
Right because somone who does not possess electronics knowledge can tell the difference between a PCB for a cheap electronic clock and one that is some kind of detonator.
The school officials, and the police, all asserted that they had exactly that ability, as none of them actually invoked a single procedure that they had in place for dealing with a suspected bomb.
Schools get evacuated on the basis of a single anonymous phone call which says there's a bomb in a locker. It happens on a regular basis. Yet when they had the device IN HAND, they very obviously made the determination that it was in no way, shape or form dangerous. They did not evacuate the school. They did not call in bomb disposal. The teacher kept it in a desk drawer for a fair length of time. The police transported the 'device' in the same vehicle that they used to perpshame Ahmed.
They didn't just believe it wasn't a bomb, they made a specific determination, at every level and at every point in the debacle, that it wasn't a bomb, and SPECIFICALLY CHOSE to not invoke the procedures that all start with 'If there is ANY possibility that there is a bomb, do this....'
Being arrested requires that charges be filed.
Incorrect. You're 'detained' of the officer stops you for any reason. You're 'under arrest' if you don't feel free to leave, if the police transport you anywhere, or uses force to prevent you from leaving. The officer requires 'reasonable suspicion' to detain you, and requires 'probable cause' to arrest you, but it DOES NOT need to lead to charges. The officer can reasonably believe you were commiting a crime, then turn out to be wrong, or have new evidence come to light without it having been false arrest.
Your twenty minutes is plucked out of the air and meaningless.
Actually, it's a rule of thumb applied by the SCOTUS. Google it a bit and you'll find all sorts of case law, opinions, and the like.
TLDR: You can be 'detained' on suspicion. If you're not free to go, if the officer moves you, or if the officer starts calling in backup, drug sniffing dogs, and the like, you're under arrest. If he develops 'probable cause' to believe you've committed a crime, he can arrest you.
Ahmed was not detained. He was arrested. At no point would he have felt that he was free to go. Also, 'twenty minutes' seems to be the rule of thumb for how long somebody can be 'detained' before it turns into a de-facto arrest.
Ahmed was hauled off in cuffs, for zero reason. The American legal system specifically puts a dollar value on damages, as well as having the idea of putative awards. Ahmed deserves both.
I'm not talking about the University's rights to accept or deny students based on more-or-less arbitrary criteria.
I'm saying that if the University considers a person to be suspect of committing a crime, they probably have a legal duty to report that to law enforcement, not simply send the student somewhere else where they can continue. Especially in cases such as sexual assault, which have a major impact on victims.
If my daughter were raped on campus, and I found out that the accused had been expelled from another University for having multiple accusations piled up, but was never reported to the police, I'd be after them like something that goes after something else really fast and hard.
It is easier to change the specification to fit the program than vice versa.