Science & Mathematics - 2 July 2007

This about extracting methane from animal manure. I need to invent a gadget that can extract methane from animal manure.

2007-07-02 00:49:33 · 3 answers · asked by Azehc 1 in Engineering

2007-07-02 00:48:37 · 1 answers · asked by keiZia 1 in Biology

why are the stomata opened during the day and closed at night? I already know the answer but i want someone to answer it more clearly that is with more details. Thanks in advance.

2007-07-02 00:41:30 · 3 answers · asked by Anonymous in Biology

Is dark matter normal matter or a special type of matter?

is it dark because it does not reflect any light.(obsorbing all, or letting it pass through) or is it dark because there is no light to reflect? (i.e. no sun to brighten it)

Since it has gravity, has it condensed into lump's, planets and 'dark' suns?

and why is there so much of it when comparing the percentage to the amount 'bright' matter in our galaxy?

2007-07-02 00:37:36 · 10 answers · asked by mrzwink 7 in Physics

g(x)=(6x^2-8x)ln(x)

2007-07-02 00:37:31 · 5 answers · asked by latina_babygirl002 1 in Mathematics

on a certain day 2200 people enter the fair and $5050 is collected. How many children and how many adults have attendted

2007-07-02 00:36:58 · 7 answers · asked by finny 2 in Mathematics

How did people choose the things they used for money ?

2007-07-02 00:33:00 · 2 answers · asked by Anonymous in Biology

What made them so special that they could withstand cosmic radiation and the extreme temperature shifts between shadow and full sunlight while they were being used on the baldly exposed surface of the moon? I've read an interview with a Hasselblad spokesman where he mentions that although they were barely modified from the Earth bound versions, they each had a few coats of aluminum/silver paint (?)... but that doesn't strike me as something which would offer a considerable degree of protection, or in fact virtually any protection whatsoever. Also it's been stated by authorities that they used a "special emulsion" with the film... but as far as I can tell they've never ever said what---exactly---was so special about it.

So what was so special about it? Or is it a trade secret and therefore unavailable to the public? I just want a basic explanation that isn't totally vague and useless in the vein of "Trust them, they're experts."

Anyone?

2007-07-02 00:28:10 · 4 answers · asked by Anonymous in Astronomy & Space

Does anyone have any suggestions on a good chemical to sanitize an active carbon bed? I have a water plant fitted with an active carbon bed after softeners. The carbon bed is becoming a source of bacteria growth and I would like to sanitize it. any suggestions? Heat is not possible due to the design of the plant.

2007-07-02 00:22:07 · 1 answers · asked by lucky7bear2002 2 in Chemistry

All things trunk of trees solar system almost earyh but why man is not?

2007-07-02 00:15:06 · 19 answers · asked by Dua 1 in Astronomy & Space

I've done it before too. Im just curious why people do it.

2007-07-02 00:05:47 · 11 answers · asked by caladbolgx2002 1 in Other - Science

There's probably a simple answer for this that I'm just not seeing... but...
They say the moon looks larger when it's on the horizon because of the way the human brain works.
So why then are photos taken of said moon in said position (horizon) showing up on photos as just as large on the photos themselves, just as our human minds would see it? Wouldn't it show up as it really is on a photo, as the camera is not affected by this human trait?

2007-07-02 00:04:20 · 8 answers · asked by matt 2 in Astronomy & Space

Uh, it's for my Algebra research. I can't find it in the search engine. They mostly give off way far-off answers! Please INSERT link.

2007-07-02 00:04:03 · 5 answers · asked by Brielle 3 in Mathematics