Other - Science - January 2007

My gf and I have been taking walks lately and there is one section of concrete in a parking lot that looks as if someone spilled water on it. I noticed that it has never dried.

What could someone put on concrete or pavement to make it look wet, and stay that way?

2007-01-18 15:32:15 · 5 answers · asked by aaron.lattin 2

2007-01-18 15:30:11 · 9 answers · asked by Anonymous

What happens to the wax that is burned when a candle is lit. The wax gets incorporated into the air..?? Does anyone know the chemistry to this...and also, is it a health hazard to breathe this in?

Thanks!

2007-01-18 14:13:21 · 6 answers · asked by ๑The Goddess๑ 3

I saw an article about him in a trade journal last week. Does anyone else think that it's all an act, that he's probably a real stud once he removes that bowtie?

2007-01-18 13:50:43 · 11 answers · asked by The ~Muffin~ Man 6

1) the group that receives the placebo is known as the ____ (IV or DV?)
2) In an experiment to test the effects of varying levels of light on performance, the _____ is the amount of light. (IV or DV?)
3) In an experiement, the measurable aspect of behavior of a participant is known as the _____ (IV or DV?)
4) In an experiment, a researcher manipulates one variable to see how it affects a second variable known as the ____ (IV or DV?)
5) In an experiment, a researcher manipulates a variable known as the ______ to see how it affects a second variable. (IV or DV?)

My Answers:
1) IV
2) IV
3) DV
4) DV
5) IV

I get these confused even with the explanations. I would appreciate it if someone can show me another way to look at these research values (a mnemonic or trick to remember IV and DV). More formally, it would be nice if you can check my answers too...just to see if I'm doing it correctly. Thanks!

I'll reward for Best Answer (I promise)

2007-01-18 13:49:13 · 1 answers · asked by Anonymous

2007-01-18 13:20:41 · 3 answers · asked by ±±±φ±±± schön 1

I am not too clear on this one. Is it because the fuel is being burnt after ignition so the total weight of the shuttle and fuel decreases?
Help will be appreciated.

2007-01-18 13:03:30 · 7 answers · asked by TheKingOfKnowledge 1

2007-01-18 12:48:32 · 4 answers · asked by jesse12508 1

websites w/ pictures and facts and also hints Thanks

2007-01-18 12:36:01 · 2 answers · asked by Flower_Girl 2

need to know this for a science project {-_-}. also im curious.

2007-01-18 11:43:37 · 4 answers · asked by Anonymous

Okay so I have this project where i am suppose to find the answer to these questions

1. what makes our personality the way it is?
2. Why do our hands naturally cup

I CAN NOT find the answer to either of these and I am freaking out! Please if you know a link, or have any info on it that may help me I would be SOOOOOO thankful!

2007-01-18 10:21:52 · 1 answers · asked by Anonymous

How long is a moment? and how short is an instant?

2007-01-18 09:58:22 · 8 answers · asked by ? 3

2007-01-18 09:05:16 · 3 answers · asked by *h0peless;r0mantic </3 4

2007-01-18 08:49:34 · 7 answers · asked by mikerushe 1

2007-01-18 07:43:20 · 3 answers · asked by kennychen 2

.

.. any how do you convert volume to a mass weight ?

.

2007-01-18 07:16:32 · 9 answers · asked by Agent C 3

Hello everyone, got two brain teasers for ya. Please show your work, Enjoy!


1. "Elevator"

The capacity of an elevator is either 20 children or 15 adults. If 12 children are currently in the elevator, how many adults can still get in?

2. "Floor Tiles"

How many 9-inch-square floor tiles are needed to cover a rectangular floor that measures 12 feet by 15 feet?

2007-01-18 07:03:04 · 4 answers · asked by a_perfect_cure 1

When people talk about emmissions of CO2 they often talk about it in tons. Do they actually mean the weight of it or the volume? If they mean the weight, how would they measure Hydrogen or helium?

2007-01-18 06:23:58 · 9 answers · asked by Chrisssy 2

2007-01-18 05:09:55 · 1 answers · asked by siwel32 1

If I hold an object and plaster my prints over it, can I erase them by simply sliding my hand firmly out? I've noticed that on dusty surfaces, (or any surface where fingerprints show to the naked eye), sliding my hand out erases the print, and there is no fresh print of the sliding hand/finger. I know if i lift my hand directly, i leave a fresh print, but what if I drag it to and off the edge?
We've all seen in it in the movies, where the guy cleans his gun with a cloth, but can he do it with his hands too? Ofcourse I may have not noticed something in my crude little experiment, but is it possible? Is it really possible to disguise the print with your fingers itself?

2007-01-18 03:30:04 · 4 answers · asked by Anonymous

2007-01-18 03:21:28 · 5 answers · asked by pentwaterL 1

2007-01-18 02:25:37 · 10 answers · asked by b_masters1 3

This author argues that mathematics is a form of mythical thinking It has the same structure and pre-logicallity- ie does not avoid contradiction as does so called primitive thinking.tHE AUTHOR SHOWS THAT JUST LIKE PRIMITIVES SCIENCE JUST AVOIDS THE CONTRADUICTIONS THAT UNDERMINE IT. ie dual nature of light, petersburg paradox in probablity theory russels cantor set theory paradox sholem paradox in axiomatics theory godels demonstarion that mathematics cannot be proven to be non-se;lf contradictory What do you think.
http://gamahucherpress.yellowgum.com/gamahucher_press_catalogue.htm

2007-01-18 02:06:37 · 4 answers · asked by ann 1

The Bulletin of the Atomic Scientists, which created the Doomsday Clock in 1947 to warn the world of the dangers of nuclear weapons, advanced the clock to five minutes until midnight. It was the first adjustment of the clock since 2002

Yahoo 2007

2007-01-18 00:41:56 · 7 answers · asked by kevin 4

Wow. Now we are going to take the theory of global warming into account when adjusting the doomsday clock? Aside from this (the clock) still being one of the most egotistical and idiotic creations of the human race, at least in the old days it was a symbol of a desire for peace and security. Now it's going to be the global equivilent of the lifetime movie of the week? Why not add cervical cancer and violence against women to the list and bump that clock up to midnight? Does anyone really cringe and cower in fear when this clock is moved now? If so, how do you feel now that it's used for the flavor of the month cause?

2007-01-18 00:30:59 · 4 answers · asked by claymore 3

I know that the effect of relativity to become obvious when an object travels approaching light's speed,but if someone travels a lot,i mean most of his life is spent on air plane,doesn't that have affect? Maybe appear a little bit younger than other people of same age. I stressed on 'a little bit'.

2007-01-17 23:24:08 · 5 answers · asked by faizt 2

2007-01-17 22:53:40 · 5 answers · asked by Anonymous

I really have no interest in math, to the extent that i try to be late for math class, and i dont do my homework either..Help??

2007-01-17 19:39:56 · 7 answers · asked by Jayden 3

I am currently working on a sci-fi novel that takes place in a city state (Santa Fe) about 2009 years from now (4016) It's about a group of some Nobles' 19 year old daughters and other people being hunted down by a communist agency, at the same time they discover evidence of a secret society working on a resurrection project. I am pretty good with the writing itself, but am having some major difficulty introducing the story in a "non-boring" fashion. Any opinions or suggestions?

2007-01-17 16:54:52 · 6 answers · asked by Anonymous

stupid homework

2007-01-17 15:16:35 · 2 answers · asked by :D 2