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Comment Re:Uhmmmm (Score 2) 620

Funny, but obviously they're looking for something electronic or at least with a series of modern replacements that have long ago decremented the item to oblivion. Or should have. Somehow that dang thing is still critical and chugging along.

In recent days, I've used WinNT4 machines in a manufacturing environment, and there are a few machines with relay logic in our machine shop. I've heard of a handful of machines still surviving from the early 1950s to WW2 days, but they're few and far between, and most of those are probably gone by now.

Comment Re:It's called arithmetic (Score 1) 204

There are 47,000 people in the city (who are on the hook for the bill).
Of those 47,000, only 5,400 have chosen to get the service.
The remaining people, who chose not to get the service, are the overwhelming majority.

You don't have to read minds, you can read TFA. Most citizens have chosen not to get the service.

There's a flaw in your logic here - you are quoting 'people in the city' in one breath and then comparing it to 'households' in the next breath. Exactly how many house holds would you expect to see have more than one subscriber?

I'm not sure exactly what the average household size is to use for this, but assuming that's 4 (2.5 kids and all that) then the uptake is more like 45%. That's a pretty good number even compared to top commercial offerings. (How many are rented and not allowed by landlord or stuck in other contracts?)

Comment Re:Actually it's both. (Score 1) 360

It's not atmospheric pressure, it's internally induced pressure due to buoyancy differences, which are normally created due to gravity and a connection that is rigid enough to withstand the internally induced pressure. If you have a closed system of two non-rigid containers connected by a rigid body, then the fluid will try to flow in the direction of its buoyancy. Helium balloons connected internally by a straw (even a curvy one) would try to fill the higher balloon, right?

So yeah, he's right that in the absence of gravity, a normal siphon will not work. But, if you took that siphon system on the ISS and put one end outside in space, and one inside, you'll have a siphon-like effect due to air pressure. Likewise, if you take two balloons of water with a rigid connector and submerge one in a pool of Hg, then that "siphon" will work against gravity. :D

Comment Re:Physical security? (Score 1) 374

"Cellphone theft is a huge problem here in South Africa" is an understatement. Theft and rape are so common in SA that it's just appalling. Forth percent of women in SA will be raped in their lives, and 1/4 men admit being rapists. I think stolen cell phones are the least of their worries...

Theory is gray, but the golden tree of life is green. -- Goethe