Other - Science - July 2007

Here i am sat at work with one of my co workers and we were wondering, Who invented time? not time zones but time itself. help. who did decide that 60 seconds is 1 minute and who decided that 60 mins is 1 hour and who decided 24 hours is one day i think you get the picture now.

2007-07-31 20:46:34 · 62 answers · asked by Scott 1

(a) That he or she does not believe in biological evolution because it is "just a theory"? How would you responnd if another student states, "(b) we should not worry about air pollution because through natural selection, the human species will develop lungs that can detoxify pollutants?

2007-07-31 19:37:10 · 10 answers · asked by Pollito 1

Air in a room with volume 180m^3 initially contains 0.20% carbon dioxide. Air with only 0.07% carbon dioxide flows into the room at 2m^3 per minute, and the mixed air flows out at the same rate. Find the percentage of carbon dioxide in the room as a function of time. What is the percentage of the carbon dioxide in the room after half an hour?

2007-07-31 19:12:33 · 2 answers · asked by Anonymous

2007-07-31 18:54:43 · 8 answers · asked by esha26 1

You know, what is the verse. I can only hear Bad Boys, Bad Boys whatcha gonna do,...

2007-07-31 17:35:23 · 2 answers · asked by florita 4

Please answer the question above and explain how you got the solution. Thanks!

2007-07-31 17:02:10 · 2 answers · asked by Anonymous

The air in a room with volume 180m^3 initially contains 0.20% carbon dioxide. Air with only 0.07% carbon dioxide flows into the room at 2m^3 per minute, and the mixed air flows out at the same rate. Find the percentage of carbon dioxide in the room as a function of time. What is the percentage of the carbon dioxide in the room after half an hour?

2007-07-31 16:31:26 · 1 answers · asked by Anonymous

I not sure if i want to go into that field if i can't keep up

2007-07-31 15:26:26 · 5 answers · asked by Anonymous

I have noticed alot of photos of my male relatives young and old, and now that they are old their temple regions (above ear and near eyes) have gotten wider a bit. Basically there faces look more mature and older. Is this widening process possible. And non of them are bald, so it can't be because of baldness. They still have all the hair they had in their 20's still in their 40's. So can the skull change dimension as we age to give a slightly different and more mature look?

2007-07-31 13:26:11 · 2 answers · asked by easy s 1

I am in charge of reporting the level of certain minerals as well oil and grease in the wastewater of one of the shops my employer owns. I also have to report the PH. level. It has to be between 6 and 9. Why?

2007-07-31 12:21:46 · 5 answers · asked by Laura R 2

Just curious. : )

2007-07-31 11:58:55 · 9 answers · asked by Lexi L. 2

how do i figure out how much money i would save by doing that???

2007-07-31 10:35:06 · 3 answers · asked by Anonymous

I'm not religious, but today, I was thinking about how amazing it is that everything seems to know everything else. Like, before bees evolved enough to see ultraviolet, how did they/their bodies know that plants have UV marks on them in the first place? How do animals know their predators so well that they can develop such effective defenses? How does Science seem to know everything about itself, when most of it is inanimate and apparently not even aware of it's own existance?

2007-07-31 09:49:28 · 8 answers · asked by Anonymous

Hello:
Could somebody explain me what is the difference (if any) between a chaotical behaviour and a random behaviour? What I know is that, for example, a butterfly path is chaotic, also, the path of the smoke of a cigarette, and the diffusion of a drop of ink in a glass of water, because in all these cases you can't predict how the particles (or objects) will move. That seems to be random, isn't that? Thanks

2007-07-31 09:42:13 · 1 answers · asked by Anonymous

is it Einstein?

2007-07-31 09:10:27 · 17 answers · asked by Siu02rk 3

and 1/4 across the middle and about a quarter of an inch across the ends. It's made of a smooth, shiny gray metal. It's round like a cylinder that tapers toward both ends. There are no seams or holes or anything that would enable it to be attached to anything else like a fishing weight would have. It weighs about 2 onces and I noticed when I put it on my metal postal scale that it's magnetic. I asked some people in the park if they knew what it is and no one did. One woman looked at it and said "I don't believe in that." and fled. Based on the knowledge I gleaned from 1950s sci fi movies I would have to say it's from another planet in which case I can't believe in it either. It's very attractive object, pleasant to touch. I hope it isn't toxic or explosive. Anybody know what it is?

2007-07-31 07:00:55 · 4 answers · asked by Lleh 6

2007-07-31 06:40:31 · 2 answers · asked by kailashmedia 1

http://evolutionfacts.blogspot.com

2007-07-31 04:53:20 · 6 answers · asked by prffsrx 1

2007-07-31 00:56:04 · 4 answers · asked by Anonymous

Since the 1980's some 10,000 crop circles have appeared, seemingly by magic, in England and 25 other countries. Each year the count grows, and the designs become more intricate, even fantastic. Governments tell us they're hoaxes, but the evidence shows MOST are NOT.

2007-07-30 20:32:42 · 9 answers · asked by inspiredbythemystery 2

Can you please give me statistics or scientific thingies that tell me how much lbs of CO2 actually make wateva percent of damage to atmosphere, perhaps how big a hole would be if however amount of CO2 is released. THANX!! >0<

2007-07-30 20:29:53 · 2 answers · asked by sombody 1

for entertainment,military........etc,etc.... jot down anything you think of!

2007-07-30 19:35:48 · 3 answers · asked by Aditya 1

Many people have been basing judgments on the fact that nothing can be disproven unless you have evidence saying thats its impossible under all circumstances. Although some things may be backed with this, i dont think that this theory should be used commonly.

2007-07-30 17:49:44 · 5 answers · asked by Anonymous

2007-07-30 17:46:13 · 5 answers · asked by MDuck06 2

2007-07-30 15:27:19 · 7 answers · asked by Anonymous

the number of times a cricket chirps in one minute can indicate the surrounding temperature, using a special formula

2007-07-30 14:54:56 · 3 answers · asked by Anonymous

The entire day I spent in my house, windows closed. Not once did a mosquito bother me. Until I went to bed! Then she attacked!
How does she find me every night?

Why doesn't she go to the living room and hang out there?

It seems she is so small she should have to spend all night in the living room combing that room for an ear to buzz and feet to sting!

2007-07-30 14:14:26 · 11 answers · asked by ~~∞§arah T∞©~~ 6

and therefore if you make the right noise they will move a certain direction

2007-07-30 13:16:49 · 4 answers · asked by Anonymous

I have decided that within the next year I am going to climb a local radio tower. It has always enticed me so, it's about time. My question is, should I worry about getting zapped (bring a multimeter?), what kind of harness should I be equipped with, and what kind of clipping routine should I use. What is the worst punishment I could get if caught? Has anyone ever done this? Also, are there specific towers that would be better to climb than others? (I see different shapes and such all the time) thanks guys!

PS: I know the logical answer to all my questions is not to do it at all, but my mind is pretty much made up.

2007-07-30 12:17:32 · 7 answers · asked by BiggyShorty 1

Can u get high off of helium?

2007-07-30 11:36:05 · 9 answers · asked by Anonymous