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Science & Mathematics - 4 August 2007

[Selected]: All categories Science & Mathematics

Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

The star could have died before it's light reached Earth. What if all we're seeing is just an image, a light, of the star, and not the real thing? If it takes hundreds of years for light, (which moves really quickly- it's how long it takes for you to "see" something, like an apple or a computer, right?)

And when we do watch a star die, are we really watching it die hundreds of light years after it's REAL death?

Or is it all just relative to the lifespan of the star?

2007-08-04 12:48:29 · 11 answers · asked by Anonymous in Astronomy & Space

is it fall...the season after summer?

2007-08-04 12:37:33 · 4 answers · asked by Anonymous in Weather

They claim to exploit the hidden mind powers

2007-08-04 12:36:25 · 5 answers · asked by noname 1 in Parapsychology

Hi, im looking for a CD of nature sounds. However, I want sounds of heavy rain, wind, and thunder storms. Is there a CD dedicated to these sounds, or at least a CD with these sounds on (alongside other sounds).
Names of CDs would be appreciated.
Thanks in advance

2007-08-04 12:34:26 · 5 answers · asked by Anonymous in Weather

It's 4:30 p.m. in south california (right by LA) and the sky and sun is RED! When you I stepped outside there was a reddish/ orange glow on my face, and the whole backyard/ pool-side also had a reddish tint. I looked down, and my shadow was an almost translucent blue! So bizzarre!

I looked up and there was a giant brownish red cloud in front of the sun (that's why everything's tinted) but other than that the sky is a clear blue. Why is that? I don't think it's pollution because I've never seen it in my life, and I've been to much more polluted places that this. Is it some weird gas?

2007-08-04 12:31:06 · 11 answers · asked by Anonymous in Earth Sciences & Geology

It's 4:30 p.m. in south california (right by LA) and the sky and sun is RED! When you I stepped outside there was a reddish/ orange glow on my face, and the whole backyard/ pool-side also had a reddish tint. I looked down, and my shadow was an almost translucent blue! So bizzarre!

I looked up and there was a giant brownish red cloud in front of the sun (that's why everything's tinted) but other than that the sky is a clear blue. Why is that? I don't think it's pollution because I've never seen it in my life, and I've been to much more polluted places that this. Is it some weird gas?

2007-08-04 12:29:27 · 6 answers · asked by Anonymous in Astronomy & Space

on this equation


2(2x + 7)(2x + 3)


do you distribute the 2 first? or do you multiply the polynomials in parenthesis first? or what?

2007-08-04 12:29:19 · 7 answers · asked by Skyler 2 in Mathematics

I decided to clean my room with mouthwash. Inhalation of crest pro-health minty mouthwash for 15 minutes is it poisonous?Inhalation of Cetylpyridinium Chloride they said it is poisonous.Please help!!!

2007-08-04 12:24:52 · 1 answers · asked by Anonymous in Chemistry

whhyyyyy
i hate risperdal!!
but doc said i have totake both together
but ya..does paxil itself would do the job or wuuuuuuuut

2007-08-04 12:21:04 · 1 answers · asked by Jiggyman 1 in Medicine

how high above the ground is an official temp. reporting station. i think it is either 3.5 or 4.5 ft. Can anyone verify the actual amount. thanks

2007-08-04 12:20:03 · 4 answers · asked by joshsr0909 2 in Weather

visible or invisible?

Is it possible this is happening around us now?

Is it possible to create something that reflects light in this spectrum?

2007-08-04 12:13:40 · 6 answers · asked by Sean 7 in Physics

Hi everyone. I need your help with something. The last few nights Ive been seeing crazzzzyyy things in the sky. Multiple shooting stars, This one thing that was a inch in the sky. It sht down that bursted into flames and disapeared. Then Today I was getting in the car and I looked up into the sky and saw a silverish white dot ( its only 6 pm and pretty bright out. And I turned to show my husband and it was gone. Im am sooo scared that I have been able to eat or drink anything for a couple of days now. I even got my hubby to stay home from work tonight because I was so scared and I didnt wanna be home. Please can someone tell me what this was just so I feel better? I feel sick to my stomach and feel like im gonna vomit because Im so scared I have two kids and I dont wanna feel like this around him. Please help me

2007-08-04 12:11:26 · 6 answers · asked by tammy 1 in Earth Sciences & Geology

project..
help ME!

2007-08-04 12:10:21 · 7 answers · asked by SpamMusubi 3 in Weather

What is the vertex, focus and directrix of the equation

y=1/9 x^2 -2/9 x + 28/9


???

2007-08-04 12:08:30 · 3 answers · asked by Jessica H 1 in Mathematics

plz solve with explanation.

2007-08-04 12:08:22 · 3 answers · asked by Lolla 2 in Mathematics

In what way does the interior surface of a cell membrane of a resting (nonconducting) neuron differ from the external environment? The interior is:

a. Negatively charged and contains more sodium
b. positively charged and contain less sodium
c. positively charged and contains more sodium
d. negatively charged and contains less sodium

Please explain why, thanks....

2007-08-04 12:03:18 · 3 answers · asked by Anonymous in Biology

how do they measure distance to a place they've never been like other galaxies if they say something is a billion, trillion miles from earth how do they know

2007-08-04 12:02:29 · 9 answers · asked by Andreu 2 in Astronomy & Space

what is 10% of $512.56?

2007-08-04 12:01:58 · 6 answers · asked by UW2010 3 in Mathematics

Explain why no negative values are chosen as values to substitute in for x.

2007-08-04 11:57:16 · 2 answers · asked by Anonymous in Mathematics

(Radical sign)7(2rad sign3+3rad sign 7)

2007-08-04 11:57:13 · 2 answers · asked by vadataborn 2 in Mathematics

find the time required for an object to fall to the ground from a building that is 1400 ft. high formula T=1/4suare root of 5

2007-08-04 11:53:26 · 4 answers · asked by vadataborn 2 in Mathematics

what is a literal equation??????


1) 1/2ax=c
2) p+x=q
3) rx=8=e
4)dx+ax=2a

2007-08-04 11:44:30 · 5 answers · asked by Anonymous in Mathematics

Write the equation of a line that has a slope of 3 and a y - intercept of -2.

a)y= -2x+3

b)y=3x+2

c)y=3x-2

d)y=2x-3

2007-08-04 11:38:37 · 4 answers · asked by Billy_Bob 1 in Mathematics

cuberoot(x) -5=3 answer?

2007-08-04 11:37:20 · 5 answers · asked by Anonymous in Mathematics

the polar coordinate is (-pi, -3pi/4).
convert the polar coordinate into rectangular form. Give an exact answer...



please help thank you ;)

2007-08-04 11:26:02 · 4 answers · asked by Jessica H 1 in Mathematics

I know evolution doesn't have a purpose, but when we observe complex mechanisms we wonder about their biological significance...
I understand the importance of finding beauty in people (selecting fit partners, other sociologic things), but what would be the advantage of liking to watch certain landscapes, the sunset, etc?

Do you think this is a subproduct of other selected process (for instance, it is important to be able to classify people as beautiful or not, so when that ability it comes up it is selected, but it isn't restricted to people only) or that it is important per se?

I don't know if I made myself clear... This is one of the things that comes to my mind once in a while, so I'dd like to hear some other opinions. :)

2007-08-04 11:22:56 · 11 answers · asked by Sofia 2 in Biology

I can use the roughest estimate, I just need a ball park figure. Any website that has standards to go by?

2007-08-04 11:19:04 · 5 answers · asked by sunshine 2 in Engineering

2007-08-04 10:58:14 · 3 answers · asked by irvin p 1 in Biology

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