But if poster wants to wire the entire house. A single PLC isn't going to do the job, because you don't want to replace a light switch with a PLC that's 3 rooms away. You want something small that you can put in place of the old manual switch.
As a bonus, the PLC has CSA and UL certifications, so when your house burns down, your insurance is still valid.
program a relay to come on at 30C and go off at 25C, thereby controlling the temperature
With such a huge swing, I wouldn't say that was "controlling" the temperature very much. A good thermostat will keep your room to within a degree, and avoids over/undershoot by using a more sophisticated algorithm than just bang-bang control.
What you claim Islam teaches and how a million Muslims live, every day, in the USofA... well there seems to be a disconnect there.
If you're in the local minority, it is wise to shut up and nod. There are a million Muslims in the USA, but close to half a million Paris metro area. When neighborhoods get a majority Muslim population, they start to make the rules.
There's actually a popular concensus that we welcome those who hate us and our Western culture, and we offer them all the freedom they need to practice their bullshit religion until they are strong enough to kill us infidels.
A novice was trying to fix a broken Lisp machine by turning the power off and on.
Knight, seeing what the student was doing, spoke sternly: "You cannot fix a machine by just power-cycling it with no understanding of what is going wrong."
Blame religion. It is perfectly possible to build a generation ship
The people of the generation ship will probably start a new religion before they get there. Or more likely, they'll start several religions and then fight each other over them.
Also, when sending probes beyond our solar system, it will get harder and harder to keep in contact with them, especially if you want to have a reasonable bandwidth to send a bunch of pictures.
This is a great development in a field that will likely save billions of lives
Why ? Water treatment plants have existed for many years. The fact that they aren't used in some places of the world can't be fixed by making yet another water treatment plant.
You forgot to mention that hydrogen generation from electricity is not very efficient. Transport and storage requires all new infrastructure, and converting it back to electricity isn't very efficient either.
Charging while parking would need some means to secure the charging transaction
You act like that's a huge deal. Just make a locking mechanism. And in the case somebody breaks the lock, the power can be cut until a new payment authorization is made.
Start with the places where it's easiest, and gradually extend. When building a new parking garage, make sure there are plenty of power cables and/or empty conduits.
It's also not trivial to retrofit existing gas stations with an additional hydrogen tank and pumps, especially not since hydrogen isn't very energy dense, so it requires much more tank volume.
I don't see why you would think that any program would care about the exact password somebody is going to use. On the other hand, plenty of programs keep track of time and/or do calculations based on the time. And not every program is connected to the internet, so it can download the newest update of leap seconds.
You must have missed the part where I said to correct the error when it has grown to an hour.
at noon on the day of the summer solstice, the sun should sit on the celestial meridian.
Many people around the world live in a time zone that's already an hour off. What's a few more seconds/minutes ? All of China has a single time zone, and they still manage to survive.
Otherwise there is no way we could keep track of things like sunrise and sunset, or when you might see a specific star
You don't think we could simply adjust the calculations for sunrise and sunset ?
Slashdot Mirror
Then they fucking exploded.
No, the ones that explode are generally 2nd generation kids that never had an honest job in their life.
But if poster wants to wire the entire house. A single PLC isn't going to do the job, because you don't want to replace a light switch with a PLC that's 3 rooms away. You want something small that you can put in place of the old manual switch.
As a bonus, the PLC has CSA and UL certifications, so when your house burns down, your insurance is still valid.
Doesn't mean much if you wire it the wrong way.
Ideally, the A/C and the thermostat would work together to provide optimal temperature control within the cycling limitations of the A/C.
program a relay to come on at 30C and go off at 25C, thereby controlling the temperature
With such a huge swing, I wouldn't say that was "controlling" the temperature very much. A good thermostat will keep your room to within a degree, and avoids over/undershoot by using a more sophisticated algorithm than just bang-bang control.
Doesn't fit the "cheap" criterion.
Your rights are only as good as the means you can back them up with.
What you claim Islam teaches and how a million Muslims live, every day, in the USofA ... well there seems to be a disconnect there.
If you're in the local minority, it is wise to shut up and nod. There are a million Muslims in the USA, but close to half a million Paris metro area. When neighborhoods get a majority Muslim population, they start to make the rules.
There's actually a popular concensus that we welcome those who hate us and our Western culture, and we offer them all the freedom they need to practice their bullshit religion until they are strong enough to kill us infidels.
Shows you how much popular consensus is worth.
You support murder. Fuck you.
It isn't murder until somebody cares enough.
VIOLENCE will NEVER WORK TO SILENCE PEOPLE USING FEAR.
Of course it works. Don't be silly.
A novice was trying to fix a broken Lisp machine by turning the power off and on.
Knight, seeing what the student was doing, spoke sternly: "You cannot fix a machine by just power-cycling it with no understanding of what is going wrong."
Knight turned the machine off and on.
The machine worked.
http://en.wikipedia.org/wiki/Hacker_koan
Blame religion. It is perfectly possible to build a generation ship
The people of the generation ship will probably start a new religion before they get there. Or more likely, they'll start several religions and then fight each other over them.
Also, when sending probes beyond our solar system, it will get harder and harder to keep in contact with them, especially if you want to have a reasonable bandwidth to send a bunch of pictures.
This is a great development in a field that will likely save billions of lives
Why ? Water treatment plants have existed for many years. The fact that they aren't used in some places of the world can't be fixed by making yet another water treatment plant.
It's both things. The x86 is a good design, and the intel fabs are good.
It does you little good to keep a fab, if you're not able to compete with intel on the process shrink rate.
You forgot to mention that hydrogen generation from electricity is not very efficient. Transport and storage requires all new infrastructure, and converting it back to electricity isn't very efficient either.
Charging while parking would need some means to secure the charging transaction
You act like that's a huge deal. Just make a locking mechanism. And in the case somebody breaks the lock, the power can be cut until a new payment authorization is made.
Start with the places where it's easiest, and gradually extend. When building a new parking garage, make sure there are plenty of power cables and/or empty conduits. It's also not trivial to retrofit existing gas stations with an additional hydrogen tank and pumps, especially not since hydrogen isn't very energy dense, so it requires much more tank volume.
No, but you can adjust UTC by an hour to coincide with a DST event, so to minimize the effect on people's lives.
That's not such a crazy thought. Melting ice can change the mass distribution, which can change rotational speed.
I don't see why you would think that any program would care about the exact password somebody is going to use. On the other hand, plenty of programs keep track of time and/or do calculations based on the time. And not every program is connected to the internet, so it can download the newest update of leap seconds.
at noon on the day of the summer solstice, the sun should sit on the celestial meridian.
Many people around the world live in a time zone that's already an hour off. What's a few more seconds/minutes ? All of China has a single time zone, and they still manage to survive.
Otherwise there is no way we could keep track of things like sunrise and sunset, or when you might see a specific star
You don't think we could simply adjust the calculations for sunrise and sunset ?
No, but if the code is supposed to handle leap seconds properly, it needs to know in advance when they occur.
The earth's rotation isn't actually a known factor. It varies. http://upload.wikimedia.org/wi...