Other - Science - January 2007

Try the index.

2007-01-15 19:13:13 · 2 answers · asked by stanhold 2

2007-01-15 16:29:29 · 7 answers · asked by Anonymous

2007-01-15 15:45:50 · 2 answers · asked by Anonymous

2007-01-15 15:10:49 · 1 answers · asked by Manny R 1

In those glue bottles, not gluesticks, how does all that sticky liquid glue NOT stick to the inside, if it sticks everything else together? I choose best answers rather quickly, so the faster you answer, the better of a best answer chance. ^^

2007-01-15 14:03:54 · 12 answers · asked by Annette L 2

2007-01-15 12:45:17 · 5 answers · asked by girl 1

what eexperiments could you perform that would probe matter is made of atoms?

2007-01-15 12:18:30 · 2 answers · asked by WaitingForAnswers 2

2007-01-15 12:02:13 · 4 answers · asked by Karim S 2

2007-01-15 11:22:16 · 4 answers · asked by Anonymous

Imagine that you are given the opportunity to communicate with a world that has the tech level of, say, the middle ages. Or, say, a fantasy world such as Middle-Earth or The Legend of Zelda's Hyrule. (The latter was actually what I was originally thinking of.) You can ask questions to ascertain to exact science/tech level there. Now then: if you wanted to accelerate their technological progress, what advice would you give them? (Trying not to come off to them as a total nutcase.)

The printing press would obviously be important, if they don't have it already. Ditto for the steam engine - but what would you tell them? That steam can be used to turn wheels and paddles? To separate the condenser? How to make a governor for it? And then electromagnetism; would you tell them to study lightning carefully, observe its effects on compasses, mix metals? Probably most important would be simply the scientific method. Your thoughts?

2007-01-15 10:12:54 · 1 answers · asked by Shay Guy 2

Isn't this true?

2007-01-15 09:55:29 · 16 answers · asked by "Asian Warren Buffett" 1

My son is in the 5th grade and is doing a science fair project. He is testing the buoyancy of a aluminum foil ball filled with ten pennies, compared to a aluminum foil boat filled with ten pennies.
Now this may be cheating, but I have no idea what to do, so I can't help him much so I need some help.
What are variables? And how are they used here?
Thanks.

2007-01-15 08:04:54 · 9 answers · asked by charliesangel 2

show working out clearly and then show answer

2007-01-15 06:48:06 · 5 answers · asked by Anonymous

show working out clearly and then show answer

2007-01-15 06:47:07 · 8 answers · asked by Anonymous

show working out clearly and then show answer

2007-01-15 06:46:16 · 6 answers · asked by Anonymous

show working out clearly then show answer

2007-01-15 06:45:27 · 8 answers · asked by Anonymous

NO I am not thinking of doing this. for you crazy people who will assume I am..I am worryed about it some. because someone could come up with a virus or a type bomb and wipe us out. I love God so I am not worryed about my soul. just my body,Thanks for the answers in advance.

2007-01-15 06:37:43 · 5 answers · asked by Anonymous

2007-01-15 06:21:32 · 1 answers · asked by bubblemae2003 1

I have a lot of questions. I'm only going to start with four for now, though.

1]How many calories are need to change 1 gram of 0C ice to water?

2]How many calories are needed to change the temperature of 1 gram of water by 1C? Wouldn't this answer be 1 calorie?

3]How many calories are needed to melt 1 gram of 0C ice and turn it to water at a room temperature of 23C?

4]A 50-gram sample of ice at 0C is placed in a glass beaker that contains 200g of water at 20?.
a]How much heat is needed to melt the ice?
b]By how much would the temperature of the water change if it gave up this much heat to the ice?
c]What will be the final temperature of the mixture? [Disregard any heat absorbed by the glass or given off by the surrounding air.]

2007-01-15 05:47:47 · 3 answers · asked by Anonymous

2007-01-15 05:41:05 · 5 answers · asked by raptureinkisses 2

How would you demonstrated that Elodea (a plant) carries out photosynthesis at a faster rate than it carries out respiration???

I was confused bc i thought that photosynthesis was respiration in plants... and then i thought if you put elodea in btb and put it in light and see how long it would take to turn yellow that would represent photosynthesis??? But what about respiration???

2007-01-15 04:16:28 · 4 answers · asked by *Star* 1

2007-01-15 03:40:26 · 8 answers · asked by Anonymous

Shouldn't the time before and after be roughly equal? Is the need for DST greater in the winter than in the fall? (No.) It's about hours of daylight, not heat, right?

2007-01-15 03:38:42 · 6 answers · asked by Robert B 1

My Webelos are working on their Comminication badge and one of the suggested activities is making invisible ink and I found out you use lemon juice on white paper, let it dry and view at a light bulb, a heat source, but this does not work, any other suggestions on how to make invisible ink and write a message on paper and have it appear at a later time?

2007-01-15 03:35:42 · 6 answers · asked by Tigger lover 2

my house is cold!

2007-01-15 03:22:45 · 9 answers · asked by Kevin P 1

Using a lighter doesn't work but the match always does the trick even though everyone knows what you were up to.

2007-01-15 03:18:02 · 3 answers · asked by ADubya 2

2007-01-15 01:29:02 · 6 answers · asked by Samlovesjesea 1

2007-01-14 22:59:46 · 17 answers · asked by Anonymous

I played an adventure game as a child where a puzzle was solved involving opening an envelope without ripping it; it was put in a microwave with a jar of water, and it opened.

Then, I got a e-mail forward of random tips saying an incorrectly sealed envelope can be opened by putting it in a freezer.

I haven't actually tried doing ANY of these, but from experience, can any of you tell me whether this actually works (*any* of these methods)?

2007-01-14 21:18:47 · 7 answers · asked by Puggy 7

...or other researcher teams -- I am researching it for a possible book-length work, and would like to touch upon husband/wife teams historically as well as several today, such as the Korean team (Prof. Hong Jeong-ho at MIT and Prof. Hwang Eun-sook at Harvard, I think) that made progress in adult stem cell research; as well as some duos in my homestate of Arizona. Do you know of any such "teams" -- where it's more than one partner supporting the other; it's a life passion for them both? I'm making sure to include historic examples, so cite those if you like, but I'd really like some current ones.

2007-01-14 20:46:40 · 3 answers · asked by SandyCheeks 2