Science & Mathematics - 25 December 2007

the signals in general are a form of energy ..ie they can be transferred from one form to another but not desroyed nor created..so what happens to signals that are not recieved ???do they stay in air???or is there noise interfernce???Can we hear the song played at a particular station 5 days or say a year back by tuning it at same frequency today???if not why???

2007-12-25 02:52:09 · 6 answers · asked by Anonymous in Engineering

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B-52 take off?

I've stood and watched B-52s lift off the runway countless times.. It appears to me that the plane takes off in a 'nose down' position.

Is this an optical illusion, or is this for real?

2007-12-25 02:51:48 · 4 answers · asked by Juda Ben Hur 4 in Astronomy & Space

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Help with a problem please? ^.^?

(4t^3-5t-1)/2t-1
My fathr did it in such a way that wud never understand, and i always come out with a wrong answer whn i do it myself.
So can some one please explain this to me? Thank u! @_@

By the way, Merry Christmas and Happy Holidays! ^-^

2007-12-25 02:51:35 · 6 answers · asked by |♥*/♥\*♥| 3 in Mathematics

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Is it true that the Earth is getting closer to the sun?

2007-12-25 02:50:28 · 8 answers · asked by Juan V 1 in Astronomy & Space

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If we colonize the moon, why wouldn't we build underground?

As I read about the planned 2020 return to the moon, no one ever suggests creating our habitat underground. This seems to be a logical option: we'd get shielding from radiation, we'd need less building material, there's less risk of decompression (you can't poke a hole in 50 ft. of lunar rock), and we'd be closer to the core where we can tap into geothermal energy. Fellow geeks: what am I missing? Why isn't this a good option?

2007-12-25 02:44:44 · 16 answers · asked by edthespartan 6 in Astronomy & Space

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What is an "Active Dune Field" and what makes it "active"?

I was looking at the Killpecker Dunes on some website and said that they are the largest "active dune field" in north america. Are there "inactive" dune fields?

2007-12-25 02:43:57 · 2 answers · asked by yay_boxes 4 in Earth Sciences & Geology

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what are the four protective functions of the skin?

2007-12-25 02:38:19 · 6 answers · asked by shweetharmony 1 in Biology

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Do you think UFO's and Aliens are for real?

pls visit YOUTUBE site and search the ALIENS AND UFO'S DOCUMENTARY.

2007-12-25 02:19:40 · 16 answers · asked by katz 1 in Astronomy & Space

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On a recent holiday I used one kilogram of calor gas (butane) while cooking.?

a) What volume of water was produced?
b) What volume of carbon dioxide was produced?
c) What assumptions have you made in the above calculations?

2007-12-25 02:13:49 · 3 answers · asked by Jerome D 1 in Engineering

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What is a percent of b percent of 200?

2007-12-25 02:13:08 · 3 answers · asked by Anonymous in Mathematics

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Which web site to go for Cow/bulls farming?

Is there any site which could guide on how to manage and grow your Cow farm.I'm planning to start an animal farm comprising atleast 35 to 50 cows and bulls

2007-12-25 02:12:00 · 4 answers · asked by Anonymous in Zoology

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What are the odds '100 million to 1' comparable to (needle in a haystack?) and would you call that impossible?

2007-12-25 02:05:08 · 12 answers · asked by dontknoweither 4 in Mathematics

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what is science?

2007-12-25 02:04:46 · 15 answers · asked by Anonymous in Physics

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Can you break the sun?

2007-12-25 02:02:18 · 34 answers · asked by Anonymous in Physics

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We know whats on the MOON?

but whats inside it

2007-12-25 01:53:14 · 4 answers · asked by saveitok 6 in Astronomy & Space

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how 1/12 or 4/5 or 5/6 etc can be written?

2007-12-25 01:50:09 · 5 answers · asked by preetha_jayakrishnan 1 in Mathematics

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What do you think this other sense was?

Many years ago I had what I call a transcendent experience. In this state of transcendent conciousness I had many different types of experiences/awarenesses. One thing I remember is experiencing a sense. A sense like one of the 5 senses, you know sight, hearing, smell, etc, but it was none of those. I have had many psychic experienced, telepathy, premonitions, and it wasn't a psychic sense. I have no idea what this other sense was or what it was for. Any ideas. Incidently, the experience I had was not related to drugs or any form of substance abuse, or mental health issues.

2007-12-25 01:39:24 · 15 answers · asked by purplepeace59 5 in Paranormal Phenomena

4 ⤊

Calculate the DBE for the following.?

Comment on each result and draw a possible structure for each sensible formula:
C4H6NO2;
C5H12O3;
C3H3N;
C4H8Cl4O2

2007-12-25 01:35:55 · 3 answers · asked by Jerome D 1 in Mathematics

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is it possible to write the fraction in a normal way.?

for example when we write a fraction we write the numerator first. then put a line below the numerator and below the numerator wwe write the denominator. Is it possible to write the same thing in computer. when we write 1/2 like this is it any way that it automaically changes into the fractional form as we see in text books

2007-12-25 01:16:18 · 5 answers · asked by preetha_jayakrishnan 1 in Mathematics