Science & Mathematics - 20 August 2006

Why do we have to change time twice a year ? Why don't we just move 1/2 hour ahead/back and be done with it ever ?

I hate to change my clock twice a year.

2006-08-20 13:05:10 · 10 answers · asked by Anonymous in Other - Science

2006-08-20 13:00:22 · 6 answers · asked by Ryan 1 in Mathematics

I have heard that most people use about 10% of their brains. Is there a test that can determine how much of your brain function you are using?

2006-08-20 12:51:28 · 8 answers · asked by inquisitive 1 in Other - Science

When I go to sleep at 2 am and wake up at 6 am i feel more energized....but when I go to sleep at 10 pm and wake up at 6 I feel like I was hit by a truck and I don't want to wake up

2006-08-20 12:48:51 · 13 answers · asked by Anonymous in Biology

does any1 kno a famous mathematics scientist?

2006-08-20 12:48:27 · 12 answers · asked by Anonymous in Mathematics

2006-08-20 12:46:57 · 7 answers · asked by Jeff E 1 in Earth Sciences & Geology

2006-08-20 12:44:38 · 10 answers · asked by woodticktom 1 in Chemistry

2006-08-20 12:44:27 · 24 answers · asked by Anonymous in Astronomy & Space

2006-08-20 12:42:31 · 4 answers · asked by Anonymous in Biology

I am not genius; this is just for passing time.

2006-08-20 12:39:41 · 5 answers · asked by Ravi R 1 in Astronomy & Space

2006-08-20 12:36:53 · 14 answers · asked by atapans 1 in Physics

I have to memorize all the exact values for sin, cos, and tan. There's like 51 different numbers. Should I just go like one at a time and use flash cards or is there a better way?

2006-08-20 12:31:50 · 11 answers · asked by Anonymous in Mathematics

Every time I see a cartoon of a molecule. I see atoms together to form a ball in the middle, and more atoms spinning around the atoms in the middle, like moons going around earth.

Why are they spinning around and what is making them spin?

2006-08-20 12:30:46 · 19 answers · asked by Anonymous in Physics

2006-08-20 12:26:17 · 9 answers · asked by The Apostle 2 in Engineering

Like in the movie Total Recall?

2006-08-20 12:25:35 · 11 answers · asked by Anonymous in Biology

Like in the movie Total Recall?

2006-08-20 12:22:22 · 9 answers · asked by Anonymous in Biology

2006-08-20 12:17:51 · 2 answers · asked by mohsen 1 in Engineering

I have a sore ulcer in on my gums, what causes them?, what can I do to help ease the pain?

Thanks.

2006-08-20 12:15:42 · 1 answers · asked by Alex S 2 in Medicine

it should be spelled something like this: _eat_ering.

2006-08-20 12:08:14 · 8 answers · asked by Anonymous in Other - Science

Is it because they pray to their imaginary friend all the time?

2006-08-20 12:04:53 · 57 answers · asked by Don't Eat Animals! 1 in Zoology

When my mom started dying her hair, she didn't have a lot of white hairs. Flash forward a couple years later, and most of her head is covered in white. Why is that? I'm sure that if she hadn't started to dye her hair as often, she would probably still have more white hairs, but not as much. Some of my friends who are 15 even have white hairs, because they seem to dye their hair a lot... so I dunno, can you explain this to me?

2006-08-20 12:03:00 · 5 answers · asked by Moon O 1 in Chemistry

2006-08-20 12:00:35 · 0 answers · asked by chfine2004 1 in Mathematics

i can never get it straight... and i dont know what category to put it in so dont get mad at me

2006-08-20 12:00:02 · 11 answers · asked by vera lynn 2 in Other - Science

2006-08-20 11:59:59 · 12 answers · asked by Anonymous in Mathematics

Proof by induction:

3n (less than or equal to) 3^n
n = element of all natural numbers

2006-08-20 11:58:02 · 4 answers · asked by Silvia 2 in Mathematics

I recently learned about Nuclear engineering and how it works. It seems very complicated and certainly the engineers there must be quite intelligent. But on TV and other sources, nuclear power plant workers are perceived as not very smart! Why is this? Clearly, to be an engineer, you must be smart. So why would working at a Nuclear power plant be almost like something that bad engineers or engineers low in ranking do? Is that true?

2006-08-20 11:53:27 · 7 answers · asked by ♥ 2 in Engineering

i do, i don't like to blieve vr the only existance in whole universe.

2006-08-20 11:50:10 · 20 answers · asked by Anonymous in Astronomy & Space

"Being able to selectively kill cells that harbor HIV is one of the holy grails of HIV research. Dr. Badley's group took a giant step when, in 2001, they accomplished the feat in a test tube. The experiment used a cloned apoptosis-inducing protein called TRAIL (TNF-related apoptosis-inducing ligand). In the study, which took place in Dr. Badley's native Canada, investigators took cells from HIV patients and exposed them to TRAIL in a test tube. The results were rewarding—cells that contained HIV died while HIV-negative cells lived."

Why does the TRAIL only kill the hiv cells?
Does anyone have a good explanation for how TRAIL works?

2006-08-20 11:43:02 · 3 answers · asked by kiel_reid 1 in Medicine

2006-08-20 11:41:58 · 20 answers · asked by syelark 3 in Other - Science

Landforms may consist of plains,hills,moutains,etc.

2006-08-20 11:38:18 · 11 answers · asked by Anonymous in Geography