# Search:

Type: Posts; User: derobert

1. ## Question: Separaton of C and O

by derobert
3
Views
383

### People are working on just storing the CO2...

People are working on just storing the CO2 underground, and also on converting it back into hydrocarbons. Wikipedia has an overview: Carbon capture and storage - Wikipedia, the free encyclopedia
...
2. ## Question: Maytag fridge freezer noise & cooling issue

by derobert
2
Views
1,689

### That's quite a bit of moisture getting into it...

That's quite a bit of moisture getting into it from somewhere!
3. ## Question: I need some help... This stuff totally confuses me!

by derobert
9
Views
2,789

### Wow, who wrote this thing? The answer to the...

Wow, who wrote this thing?

The answer to the first (#5) question — "all of the above" — isn't an option, and two of the answers (B and D) are the same thing. And it gets worse from there...
4. ## Question: Separaton of C and O

by derobert
3
Views
383

### The plant uses energy (sunlight) to split CO2...

The plant uses energy (sunlight) to split CO2 (and H2O).

Photosynthesis - Wikipedia, the free encyclopedia

I don't see any reason it couldn't be done, except for the energy requirements. So it...
5. ## Question: Formula derivation from a sequence

by derobert
1
Views
419

### 1 + 1.02^2 + 1.02^3 + \dots + 1.02^{19} ...

1 + 1.02^2 + 1.02^3 + \dots + 1.02^{19}

Wouldn't you just solve that? (Oh, and is there a term missing; should there be a + 1.02 from 1.02^1 in there?). According to my calculator,

1 +...
6. ## Question: Can bleach evaporate?

by derobert
3
Views
3,344

### I'm sorry I wasn't clearer... My answer to your...

I'm sorry I wasn't clearer... My answer to your bolded question is "no", and the rest of that first paragraph is why I believe that answer to be correct: it is naturally drier in many places than...
7. ## Question: How to restore backup in linux taken by TAR Command

by derobert
6
Views
1,569

### Tape doesn't work like that. It isn't a file...

Tape doesn't work like that. It isn't a file system. You can erase the tape, or just write over it, but you don't add and delete files like you do a file system.

If you want to write over it, just...
8. ## Question: How to restore backup in linux taken by TAR Command

by derobert
6
Views
1,569

### You can use tar to read the tape if it was...

You can use tar to read the tape if it was written by tar.

e.g. tar xf /dev/st0

I'd suggest setting the read-only tab on your tape if it has one.

Hopefully however you backed up the Oracle...
9. ## Question: Density with measurments

by derobert
1
Views
1,151

### Divide the mass by the density to get volume....

Divide the mass by the density to get volume. Divide the volume by the area of the dish.

\frac{g}{\frac{g}{\mathrm{cm}^3}} = g \cdot \frac{\mathrm{cm}^3}{g} = \mathrm{cm}^3
...
10. ## Question: Why vote only demacrat or republican

by derobert
6
Views
831

### Suppose you have three candidates, A, B, and C....

Suppose you have three candidates, A, B, and C. You prefer A, would be OK with B, and hate C. What you'd like to do is, of course, vote for A.

Now, with out simple majority system, you also have...
11. ## Question: Can bleach evaporate?

by derobert
3
Views
3,344

### It's not the dehumidifier. It may lower humidity...

It's not the dehumidifier. It may lower humidity to 30% or so if you're really overdoing it, but quite a few places the indoor humidity is lower than that naturally in the winter.

This wouldn't...
12. ## Question: CO/GAS leak and it can't be found

by derobert
3
Views
581

### Surely the fire department, gas company, etc....

Surely the fire department, gas company, etc. have brought out accurate, calibrated CO meters? How do their readings compare to yours?
13. ## Question: GFCI breaker and outlet

by derobert
13
Views
2,111

### Can we get a picture of this breaker? Is it...

Can we get a picture of this breaker? Is it possible you're reading it wrong?

Off should damn well mean off.
14. ## Question: Is it possible to connect a specific server through broadband bypassing internet?

by derobert
2
Views
438

my $var_name = "frequency2"; print$$var_name, "\n"; but you probably don't want to. If you have a... 16. ## Question: Executable files extentios in unix by derobert Answers 1 Views 493 ### UNIX systems don't use file extensions to... UNIX systems don't use file extensions to determine if something is executable. Instead, they use the file permissions.$ ls -l /bin/ls
-rwxr-xr-x 1 root root 101992 2008-04-04 10:58 /bin/ls
...
17. ## Question: Dishwasher air gap mystery!

by derobert
75
Views
54,467

### I have a confession to make. I can confirm...

I have a confession to make. I can confirm empirically where it goes.

My dishwasher has an air gap.

First, it removes the stopper from the other sink. With a rather impressive force, really....
18. ## Question: Hypothesis testing

by derobert
2
Views
610

### Comment on terryg752's post

Not possible, even.
19. ## Question: Verb tense

by derobert
3
Views
694

### To me, "right now" makes it sound like it should...

To me, "right now" makes it sound like it should be in the present not the present perfect tense. So you'd get "right now, we import more goods than we export."
20. ## Question: What size pieces of cake will make 70 serves

by derobert
5
Views
1,224

### To get 70 pieces, you need to cut enough rows and...

To get 70 pieces, you need to cut enough rows and columns so the product (multiply them together) of those two is 70. There are several ways to make 70:

70 * 1 (duh)
35 * 2
14 * 5
10 * 7

Of...

by derobert
1
Views
630

22. ## Question: Can I disable outside unit with a heat pump?

by derobert
4
Views
1,244

### A heat pump normally has two sources of heat (1)...

A heat pump normally has two sources of heat (1) the compressor outside; this normally feels cool at the vent (2) electric resistive heating; this normally feels warm at the vent. It sounds like you...
23. ## Question: Heat Pump - Blowing hot air from outside compressor & making noise

by derobert
3
Views
2,094

### Did it go back to normal in a few minutes and was...

Did it go back to normal in a few minutes and was the fan off? If so, I think you just watched a defrost cycle.
24. ## Question: Millions calcilae

by derobert
3
Views
850

### Billion - Wikipedia, the free encyclopedia...

Billion - Wikipedia, the free encyclopedia
25. ## Question: Vacation Rental Issue

by derobert
3
Views
586

### Sounds like you called up the owner's association...

Sounds like you called up the owner's association (do they own the property?) and asked to rent it. They said no. This isn't you being subject to the association, this is the association using its...
26. ## Question: Algebra II

by derobert
2
Views
1,133

### Surely you've been given some guidance in class...

Surely you've been given some guidance in class on how to do these? Personally, I'd use Newton's law of gravitation, but then it becomes a physics question, not a math question.

Also, there isn't...
27. ## Question: What do you get if

by derobert
2
Views
2,471

### A confused student?

A confused student?
28. ## Question: Computer shutdowns itself

by derobert
8
Views
446

### Check the cooling fans for dust/lent buildup, may...

Check the cooling fans for dust/lent buildup, may be overheating.
29. ## Question: Historical development of math

by derobert
1
Views
1,843

### I have a 600 page, double-wide book which covers...

I have a 600 page, double-wide book which covers no more than the history of the rational numbers (and mostly just counting numbers). (The Universal History of Numbers, Ifrah).

The history of...
30. ## Question: Depreciating asset

by derobert
2
Views
429

### To the gentleman who called me a depreciating...

To the gentleman who called me a depreciating asset there is a response which quotes the posting... can't find the original posting.
31. ## Question: Connecting my mp3 player to my receiver

by derobert
4
Views
1,720

### Sure, you can use any input channel except phono,...

Sure, you can use any input channel except phono, just like the instruction say. Which inputs do you have open?
32. ## Question: I need to know the reson for the discrepency.

by derobert
1
Views
1,772

### The test of what? The scores from doing what? ...

The test of what? The scores from doing what?

Not sure without that info, but it sounds like just none of their test subjects got the highest score. For example, if this were a vocab test, the...

by derobert
2
Views
621

### Editing the entire essay would take a fair bit of...

Editing the entire essay would take a fair bit of work. Personally, I'm pretty harsh when it come to editing things... so you'd likely not want me to tear into it anyway. I have skimmed over it, and...

by derobert