Science & Mathematics - 10 August 2007

2007-08-10 10:47:21 · 6 answers · asked by Rachel T 1 in Chemistry

They are round, about the size of a quarter, with a hole in the middle, and are made of a thin strong black cardboard type material.

They look like washers.

Could they be an electrical insulator of some type?

Thanks to all for any ideas!

2007-08-10 10:46:42 · 3 answers · asked by Anonymous in Engineering

2007-08-10 10:46:19 · 19 answers · asked by Giggly Giraffe 7 in Astronomy & Space

david ray griffen in his book debunking 9/11 debunking shows how the govt. has covered up evidence and has acted in a very suspicious manner

2007-08-10 10:41:44 · 10 answers · asked by mr logic 1 in Engineering

You are in a rowboat on a lake and a speed boat passes you. your boat starts to bob up and down. you observe that you bob every .d seconds and the waves are 2.5 m apart. what is the wave speed?

2007-08-10 10:39:29 · 2 answers · asked by Anonymous in Physics

?

2007-08-10 10:35:17 · 7 answers · asked by Miljan 1 in Astronomy & Space

E.g. chiral, etc.

2007-08-10 10:34:44 · 2 answers · asked by Anonymous in Chemistry

hi .C-wryte olease solve this i am sure you will solve it and my id ali_kh144 from iran

2007-08-10 10:31:41 · 5 answers · asked by ali k 1 in Mathematics

when a piece of metal acted on by a force of 25 pounds moves 5 feet to the left he work done is?

2007-08-10 10:31:25 · 6 answers · asked by Anonymous in Physics

2007-08-10 10:31:04 · 4 answers · asked by chato r 1 in Biology

a child with a mass of 50kg is at rest on a skateboard with a mass of 5 kg the child jumps off the skateboard and the skateboard moves away at 10m/s. the child moves the other direction at?

2007-08-10 10:30:21 · 1 answers · asked by Anonymous in Physics

If so, what benefits & disasters occur with this?

2007-08-10 10:28:53 · 13 answers · asked by Giggly Giraffe 7 in Astronomy & Space

a. Eye Surgery
b. Dvd Player
c. Bar Code Reader
d. Flourescent Light

2007-08-10 10:28:46 · 9 answers · asked by chato r 1 in Physics

Boltzmann amongst others end up tragically compared to Islamic mathematicians such as Al-Kindi, Al Jabir al Hayyan, Al-Khwarizmi and others? Is it because the reliazation that there is denial that God exist creates more doubts and therefore mental breakdown?

2007-08-10 10:28:34 · 9 answers · asked by karipap ayam m 1 in Mathematics

2007-08-10 10:27:14 · 11 answers · asked by Giggly Giraffe 7 in Astronomy & Space

a. 25ml graduated cylinder
b. 25ml Pipette
c. 50ml burret
d. 50ml beaker

2007-08-10 10:25:47 · 5 answers · asked by chato r 1 in Chemistry

Let P be a point on the curve y=x^3 and suppose the tangent line at P intersects the curve again at Q. Show that the slope at Q is 4 times the slope at P.

I'm kinda lost on this..
Thanks!

2007-08-10 10:25:11 · 3 answers · asked by mdang12000 2 in Mathematics

2007-08-10 10:24:57 · 5 answers · asked by Anonymous in Chemistry

I saw a documentary about how passionate this mathematicians and how they use mathematics to describe abstract things like, truth, existence, thinking, God, nature, and most of all philosophy. I don't really get it.

2007-08-10 10:24:13 · 5 answers · asked by karipap ayam m 1 in Mathematics

A king has some (finite) number of subjects. One day he lines them all up in a row, facing towards the front of the row. He goes from the front of the row to the back, giving each subject a hat - either red or blue.

No subject can see his/her own hat, nor can any subject see behind himself/herself. But a subject can see ALL of the others that come before him/her in line.

So the king has made his way to the back of the line, and now he will ask the person at the back of the line "What color is your hat?" while brandishing a big sword. If answered correctly, the person is freed. If answered incorrectly, the person is beheaded immediately. No communication between subjects is allowed, although they can hear each others' guesses.

You have a chance to meet with the subjects ahead of time - the night before this incident - to give them a strategy that will save the most number of lives (guaranteed, not a probability or expected outcome). The strategy that saves the most will be chosen.

2007-08-10 10:13:16 · 5 answers · asked by сhееsеr1 7 in Mathematics

2007-08-10 10:13:05 · 4 answers · asked by mr logic 1 in Engineering

So i want to tattoo the latitude and longitude coordinates of mount of olives in jerusalem but i am having trouble finding an exact address for the church of all nations, anybody know where i can find this information....

2007-08-10 10:06:06 · 2 answers · asked by amy e 2 in Geography

think about it...our hair never stops growing...we eventually have to cut it...but everything else has a hair ceiling...like a polar bear...its hair is ALWAYS one size...never bigger never smaller..if u were to cut a patch off it would grow back to the same size as it was...and stop growing...Why do humans hair continue to grow and other creatures hair dont?

2007-08-10 09:53:42 · 5 answers · asked by crigjig 3 in Earth Sciences & Geology

How is it that prior to the big bang there was 'nothing', but somehow some atom or something exploded and caused the big bang (or something). So, how was there an atom or neutron or whatever if there was 'nothing'? what is the definition of 'nothing' in this context?

2007-08-10 09:52:32 · 19 answers · asked by Anonymous in Astronomy & Space

what is it exactly?

2007-08-10 09:48:59 · 6 answers · asked by DUNN 1 in Other - Science

I'd like to find out how much ice it would take to lower the temp of the water in my pool from 92 degrees to 82 degrees. My pool is approximately 13,500 gallons.

2007-08-10 09:47:52 · 4 answers · asked by John R 1 in Physics

I posted these pics LATE last night, so I am hoping there are more people online to see them. I found this about 5 1/2 feet down. Although I found it in Oregon, I am hoping it's real and made its way over here somehow. I am awaiting further word from museums and so far what I have heard is promising. Just want more people to see it. The black coating isn't a mold, it's solid rock.
http://i189.photobucket.com/albums/z147/screenwr/Artifact012.jpg
http://i189.photobucket.com/albums/z147/screenwr/Artifact011.jpg
http://i189.photobucket.com/albums/z147/screenwr/Artifact010.jpg
http://i189.photobucket.com/albums/z147/screenwr/Artifact009.jpg
http://i189.photobucket.com/albums/z147/screenwr/Artifact008.jpg
http://i189.photobucket.com/albums/z147/screenwr/Artifact007.jpg
http://i189.photobucket.com/albums/z147/screenwr/Artifact006.jpg

2007-08-10 09:47:50 · 14 answers · asked by Anonymous in Other - Alternative

2007-08-10 09:46:56 · 6 answers · asked by bjenkins322 1 in Engineering

Scientifically speaking, what are the ideas which explain the actual beginning of life? I've heard phrases like "primordial ooze" being thrown around, but what exactly does that refer to? Is there an accepted theory? Most of us are only familiar with the "survival of the fittest" aspect of the process of evolution, but there are other aspects such as genetic drift that most people are undereducated about. Is there an aspect of evolutionary theory that explains the origen of life, or are there any other interesting ideas to explain it?

2007-08-10 09:45:44 · 5 answers · asked by Aleksandr 4 in Biology

Take a scientist like Enrico Fermi, who was involved with developing the atomic bomb during the Manhattan Project...

All his experiments took place on a university campus where he was a Professor of Physics.

So does that mean those who knew him - colleagues, assistants, students, security guards, etc. - would've addressed him as Professor Fermi? Or Doctor Fermi?

2007-08-10 09:44:58 · 6 answers · asked by nitejrny282 2 in Physics