Answer My Searches

You just have to tell the printer that you installed the 550-sheet Drawer. (You’ll need that accessory to even have two trays )

To tell the printer about the drawer:

Go to control panel
Open up Printers and Faxes
Right click on the printer in question
Select Properties
Go to the Install Options tab
Add the 550 Sheet Drawer
Click OK

Now neither tray will be grayed out when you print.

My searches:

1. dell 1700 n select tray
2. dell 1700n select OR choose tray

[tags]1700n,printing, paper source, Dell[/tags]

I read somewhere that heat pumps are more efficient than resistance heaters. And this really got me confused. A resistance heater turns 100% of its input energy into heat. Where else would its energy go? So how on earth can anything be more efficient than 100%?

Well, after much research, it turns out that while a resistance heater turns 1 watt of electricity into 1 watt of heat energy, a heat pump can use 1 watt of electricity to move 3 or 4 watts of heat energy into a building.

I still can’t figure out why this doesn’t violate any laws of energy conservation or Thermodynamics? It seems like you could move 3 or 4 watts of heat energy into a heat engine and get back at least more than 1 watt. I’d still like to find out what prevents me from getting extra energy out of such a system.

Anyway, here were the best resources I found on that subject, but I’m afraid we’ll need an expert in Thermodynamics with a knack for putting complex concepts into laymen’s terms in order to answer this question fully.

1. http://home.howstuffworks.com/question49.htm
2. http://www.eco-hometec.co.uk/Heat%20Pump%20Efficiencies.htm
3. http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/heatpump.html
4. http://rabi.phys.virginia.edu/105/2005/ps8s.html

Here are all of the searches I did:

1. Why is a heat pump for efficient than a space heater
2. how does a heat pump work?
3. “Heat pump” thermodynamics resistance heating
4. “heat pump” + violates + “conservation of energy”

[tags]Thermodynamics, heat pump, conservation of energy, carnot cycle, heat engine, free energy[/tags]

My friend has a dog who will pee on the carpet whenever people don’t pay attention to her. But normally she knows how to ask how to go outside. So I got to wondering if dogs can have an emotion like spite or revenge.

I searched around and everyone says absolutely not. Dogs do not have complex emotions like that and also probably don’t have the planning capacity do carry out a revenge act.

Here are some of the web sites I found that try to explain this. Generally they say that the dog may just be getting scared or lonely and thus confused.

• Spite Isn’t A Dog Thing – Separation Anxiety Is
• Do Dogs Think?

However I still have my doubts. Dogs obviously descended from wolves which had to live in small packs and I’d think that the concept of revenge might be useful for social animals to have evolved. It would encourage cooperation by punishing those who don’t cooperate. You know a “You didn’t help us hunt, so you can’t have my bison” type of deal.

[tags]spite, pee, dogs, emotions, dog emotions, anxiety, wolves, evolution[/tags]

The answer is simple:

In the Gnuplot terminal you just call “splot” with two or more comma seperated arguments as so:

gnuplot> set title "Problem 6.1 (a)"
gnuplot> set xlabel "x"
gnuplot> set ylabel "y"
gnuplot> splot 'c:\docume~1\gregory\locals~1\temp\tmpr8yu4s' notitle, 'c:\docume
~1\gregory\locals~1\temp\tmprewjaw' notitle, (-.7*y)+.5

And in Gnuplot.py my full working code to plot two series of data and also a plane to hopefully separate them looked like this:

#prob 3.4
from __future__ import division
from Numeric import *

# If the package has been installed correctly, this should work:
import Gnuplot, Gnuplot.funcutils

g = Gnuplot.Gnuplot(debug=1)
g.title('Problem 6.1 (a)')
g.xlabel('x')
g.ylabel('y')
coords1=[
(0,0,1),
(0,1,0),
(0,1,1),
(1,0,1),
(1,1,0),
(1,1,1)
]
coords2=[
(0,0,0),
(1,0,0),
]
g.splot(coords1,coords2,'(-.7*y)+.5')

And here’s the pretty result:

[tags]Gnuplot, Python, Linear Separability[/tags]