AC isn't about transmission easy, it is all about transformers and mechanical systems.
I guess it would be more correct to say that AC is easier to transmit *because* of the relative simplicity of transformers at the end points.
I know nothing about electricity
So you figured you'd post your suggestion on
Is it just that we're so used to designing electronics etc. to use AC, or are there other benefits?
Its easier to transmit long distances, at high voltages.
Its trivial to step up and down to different voltage levels via transformers. The equivalent in DC is not simple.
Mechanical AC generators are simpler and cheaper to build and maintain. And nearly all electicity is generated from mechanical sources (turbines).
Hydro and tidal are water driven turbines. Coal, wood, biomass (methane), natural gas, nuclear, even geothermal electricity are all "steam driving turbine" eleciticity generators, wind is an air driven turbine.
That leaves solar, which IS DC. Worldwide, like 0.2% of electricy is from solar.
Batteries too, are DC, but are charged nearly exclusively from AC sources.
then why not put effort into designing AC sources of electricity?
I guess so. I mean, only 99.8% of electricity comes from AC sources. Just imagine what they could do if they put some effort into designing some AC sources, right?
My bug has finally been fixed - if you've always wanted to vertically center text in a select box, you're now good to go. Seriously, filed it in November of 2010, as as I can recall.
Erm...
"Effective 2014-06-18 Freecode is no longer being updated (content may be stale)"
Or were you making a joke that just whooshed by me?
Ebola is a bacteria
No, fire bad. Bread, gooood.
Wikimedia.
Pale Moon on windows.
Seamonkey sorta kinda on linux, unless you want to build Pale Moon yourself for it.
I would like to know what people watch who love the streaming from Netflix because there sure are plenty of them.
TV shows mostly. There's several. And all it takes is a couple series your interested in to burn off weeks. We've been watching Dr. Who episodes, about 4 or 5 a week, for, it feels like over a year now.
The movie selection is
But if I independently decide I want to watch movie X, odds are very high its not there, regardless of how new or old it is, and I'll need to source it from somewhere else.
Other than 2 TV shows from a few years ago that I missed when they were on, I've found Netflix's streaming offers to be very poor.
Yeah, I don't know, maybe you watch a LOT more TV than I do, or have really narrow interests but I miss more series than I've ever watched, so there's literally tons of stuff I haven't seen, or haven't seen in long enough that I'd watch or re-watch. More than enough to fill several hours a week for as far ahead as I care to imagine.
As I was going through Google News this morning I ran across an item about actor Morgan Freeman talking to a couple of astronauts on the ISS at a round table discussion at JPL before an audience of what looked like two or three hundred people, all of whom were JPL employees.
He was there with the producer of his show on the Science Channel Through the Wormhole and with its writer, a physicist.
The government has every right to determine whom and what is coming into the United States.
The notion of governments having rights is doubly complex.
The Federal government in the case of the US has no rights, it has duties & obligations, and powers granted by the governed specifically to carry out those duties & obligations, and only those duties & obligations included specifically in the US Constitution.
It also includes a list of specific restrictions upon what powers the government may or may not exercise and how in areas that were felt to be particularly critical to creating and maintaining a society designed for maximum individual freedom, general order & prosperity, personal responsibility, and the protection of private property rights.
In my nearly 6 decades of experiencing firsthand the changes and the impact they had at the time that many younger people here only read about in wikipedia, I've seen and continue to see more than a correlative relationship between the trend away from the restrictions on government power from the early 1900s up to current times and it's resultant explosion of government spending/debt, abuse/abridgment of civil rights, the surveillance state, and the overall general trend of decline of the US domestically, socially, and internationally in nearly every way.
Government is in some ways similar to a nuclear fission reactor-based national power grid. You only place enough fissionable material in each reaction vessel of a number of reactors to achieve critical-but-stable output to power a limited area, you don't try to place all the fissionable material in one reactor at once to avoid the costs of building multiple reactors. Well, you'd only do it once, and very, very briefly at any rate, heh!
Once government power exceeds "critical mass" and the chain reaction of growth of power cascades, an authoritarian government is the inevitable outcome. I believe there's still time to at least avert the worst scenarios, but not much time. And the longer we delay, the worse things will become and the more people that will suffer.
Strat
The quickest numbers I could find say that at the scales of large power-plants, the generator is very efficient, but the turbine not so much, around 50%. This would put the system as a whole at around 40% efficency sunlight -> electricity. That's competitive with the best solar voltaic systems tested in the lab, and 50-100% better than practical systems on the market. Assuming their system really does scale up to power plant sizes, of course.
Wouldn't know. Haven't ever used checks (we use direct bank payments around here), and if it says "money back guaranteed" then it usually means it. At least as far as I've ever ran into it when shopping. Never had problems getting my money back.
Not going to even bother with the sex jokes. Judging from your sayings, you come from US, and talking to you puritans about healthy sex life is like talking to a somali about woman's right not to be mutilated.
I program, therefore I am.
