Changing properties of electricity (ie current to voltage or vice versa) requires a trip through the magnetic field and that means varying the current through a conductor. With AC that's easy as it's already changing and so you can trivially (passively) convert between voltages at the same frequency with the efficiency cost of heating the conductors of the coils used in the transformer.
With DC it's harder because you don't have the time changing nature necessary for the magnetic field so you have to turn the DC on and off which requires a switch. Nowadays we have very fast switches (transistors) that allow us to tune a circuit to the power required and temporary energy storage (capacitors and inductors) available. Ignoring (or shielding) the RF interference that's created with fast switching we have systems that can efficiently convert between one DC voltage and another.
I'm not so sure we'll have DC to the home for supply, a zero-crossing is helpful to keep circuit breakers small and reduce damage in brief, accidental contact (eg broken insulation on a lamp etc).
I read it slightly differently: those 60% can set one of the other values and the default value no longer exists but is simply the default so the 40% who previously had to set that value now don't.
Eh, leaded solder is just fine with some basic precautions (and still indicated for military and space ratings) but the smell is probably a highly reactive core flux (rosin) that will eat away at anything it's used on and needs to be vigorously cleaned off after soldering. It may also be a sensitizing allergen so maybe kabdib shouldn't use it, at least not without an extractor.
If you're doing more than the once a year small project you should have fume extraction, occupational (or hobby-based) asthma sucks. As does metal flu (zinc for welding and tin for soldering although I expect that's rarer).
It's the fact that the score is handled within the game mechanics itself – so the way to get a high score is not just to play but to play with the goal of modifying R12 (so it points to a high value)
They could have easily made score be handled outside the game and you get a point per every executed statement within the time limit etc – but that would not be as fun
Higher end 'luxury' apartment buildings are frequently offering FCFS hoteling spaces and also rentable-as-you-need locking private spaces in the building as well as the modern phone booths in various parts of the buildings. If you have the income and that fits your desires you can have the city life and WFthe building you live in.
Anyone happened to use Toga with video streams? I've got some gstreamer stuff with Qt and it doesn't need a rewrite yet but it's a glimmer on the horizon.
