Science & Mathematics - 16 November 2006

Someone once said "Anyone who uses arithmetic methods to produce random numbers is in a state of sin."
Most random number generators use a measure of a randomly varying physical property (such as the internal 'tick time' of a computer) to 'seed' an arithmetic random number generator.
The argument against this is that even physical phenomena can lose their randomness, leading to unreliable results.
What are your comments on this random number generator:
Draw a table with 10 columns and 1 row. The first 'cell' is 'cell(1)', the second 'cell(2)' etc...
Take the ticker time, say 2114457852323654475
Take the last digit (5) and place the number '0' in cell(5).
Take the ticker time again, say 21153214578965428654
Take the last digit (4) and place the number '1' in cell(4) or the cell next to it if it's been filled....etc. The10 digit number containing digits 0-9 in random order is then used as a seed in an arithmetic random number generator.
How 'random' is the result?

2006-11-16 19:45:42 · 3 answers · asked by Name not provided 2 in Mathematics

2006-11-16 19:35:06 · 14 answers · asked by Anonymous in Earth Sciences & Geology

Suppose
x^(n) = a^(m) - b^(m)
Here "n" is any number > 2 & "m" is any number greater then 2.
"n" can be equal to "m" then it is FLT.
when n=/=m
then also there is no natural solution for "x" , "a" & "b" to the above equation.
Can this marvellous truth be proved?

2006-11-16 19:33:45 · 2 answers · asked by rajesh bhowmick 2 in Mathematics

If the universe is expanding at an ever-increasing pace, and according to Einsteins theory of relativity traveling faster than the speed of light would cause moving backward in time (BTW i dont fully believe that part of relativity), then do you think that eventually the universe could accellerate to and beyond the speed of light, causing the universe to just keep bouncing back and forth in time, neverending?

2006-11-16 19:27:33 · 6 answers · asked by vanman8u 5 in Astronomy & Space

Archimedes Principle
What is the radius of a hydrogen filled balloon that would carry a load of 5750 N ( in addition to the weight of the hydrogen) when the density of air is 1.29kg/m^3. ( density of hydrogen is .0899kg/m^3).

2006-11-16 19:25:34 · 3 answers · asked by Dani S 1 in Physics

Solve the inequalites

2(x^2 - 2)>7x

show your working.... This isn't my Homework, I just made up this question and want to see who can answer it correctly..

2006-11-16 19:25:23 · 4 answers · asked by Miss LaStrange 5 in Mathematics

I will leave out names for privacy reasons.
I have a friend who has had OBE's as a child, and has recently had another experience. She does not drink or do drugs.
She mentioned that in this recent experience, she felt no attachment to her body, and while viewing from across the room she witnessed a whole conversation her friend was having with her, yet she did not know who these people were. She felt no emotional attachment to her body.
The friend she was conversing with said she looked zoned out, then she snapped out of it, when this look of fear entered her eyes.
She asked if I could give her some insight, and I thought this would be a place to start.
She mentioned to me that these experiences come and go, and that she does not have any way to control it. Is there some type of training for this stuff.

2006-11-16 19:24:39 · 5 answers · asked by LM 5 in Paranormal Phenomena

The human lungs can function satisfactory up to a limit where the pressure difference between the outside and inside of the lungs is one-twentieth of an atmosphere, if a diver usesa snorkel for breathing, how far below the water can she swim? Assume the diver is in salt water whose density is 1025kg/m^3.

2006-11-16 19:21:29 · 1 answers · asked by Dani S 1 in Physics

2006-11-16 19:18:47 · 21 answers · asked by Anonymous in Zoology

please quickly.......thanks

2006-11-16 19:17:40 · 4 answers · asked by Anonymous in Zoology

A person who weighs 625N is riding a 98N mountian bike. Suppose the entire weight of the rider and bike is supported equally by the two tires. if the gauge pressure in each tire is the 7.60 X 10^5 Pa (N/m^2), what is the area of contact between each tire and the ground?

2006-11-16 19:17:36 · 1 answers · asked by Dani S 1 in Physics

using only multiplication, add , sub opperations

Thanks

2006-11-16 19:14:21 · 3 answers · asked by garikll 1 in Mathematics

i want to know the differance.....thanks

2006-11-16 19:11:00 · 3 answers · asked by Anonymous in Zoology

2006-11-16 19:08:08 · 16 answers · asked by sahil_raina2001 1 in Astronomy & Space

Cancer is really a harsh problem, and it kills many people every day.

I'm a researcher, and I'm trying to find a remedy to cure cancer. I'm researching on some natural plants.

you can help me with your oppinions or information.

2006-11-16 19:06:58 · 14 answers · asked by Amin Purhematy 2 in Medicine

oh yeah i need in at least i day

2006-11-16 19:02:34 · 6 answers · asked by Answerer 2 in Geography

So, when to simply put it, when you poke water with a pen, does the surface area increase or decrease? how does the surface area affect the surface tension?

2006-11-16 19:02:16 · 2 answers · asked by jackie b 1 in Biology

2006-11-16 18:52:12 · 1 answers · asked by deggy D 1 in Botany

2006-11-16 18:41:10 · 5 answers · asked by ibid 3 in Mathematics

2006-11-16 18:39:26 · 4 answers · asked by deggy D 1 in Botany

It looks like a Holstein but instead of the typical black spots it has a full black band around the cow.

2006-11-16 18:34:48 · 7 answers · asked by 5959616263 1 in Zoology

2006-11-16 18:33:48 · 2 answers · asked by CE student 1 in Engineering

this biochemical processes experiment

2006-11-16 18:28:30 · 2 answers · asked by amazing_sweet_angel 1 in Chemistry

2006-11-16 18:26:49 · 11 answers · asked by Anonymous in Earth Sciences & Geology

this is BIOCHEMICAL PROCESSES EXPERIMENT

2006-11-16 18:26:03 · 2 answers · asked by amazing_sweet_angel 1 in Chemistry

What about it's role in this process?

2006-11-16 18:25:25 · 5 answers · asked by geniusflightnurse 4 in Biology

GRAPHICAL ASPECT AND PHYSICAL MEANING.

2006-11-16 18:22:50 · 4 answers · asked by SREEJITH P 1 in Engineering

What months are winter, spring, summer and fall?

2006-11-16 18:20:25 · 4 answers · asked by Ruth M 1 in Weather

2006-11-16 18:20:08 · 7 answers · asked by William E S 1 in Botany

do they contain selinene?

2006-11-16 18:19:43 · 1 answers · asked by deggy D 1 in Botany