Science & Mathematics - 17 September 2006

Im looking for detailed info on growing M tuberculosis; I know that Lowenstein-Jensen slants are used, but I can't find anything that says what they are etc. Links/refrences would be great.

Oh, and no wikipedia: if nothing else i drew a blank there.

2006-09-17 22:08:00 · 5 answers · asked by Bacteria Boy 4 in Biology

2006-09-17 22:05:27 · 8 answers · asked by V.D. 1 in Physics

i think its "NO"
am i correct?

2006-09-17 22:02:15 · 3 answers · asked by V.D. 1 in Physics

2006-09-17 22:01:59 · 5 answers · asked by alex042799 1 in Engineering

The most rudimentary multicellular organisms are small colonies of single-celled organisms that co-operate to the extent that they behave as a single creature (e.g. Volvox). How do these organisms stick together so that they may accomplish this?

2006-09-17 22:01:29 · 6 answers · asked by nopienoanna 1 in Biology

urea has the formula NH2CONH2, the total number of atoms in one urea molecule would be 5, 6, 7, or 8?

2006-09-17 21:59:57 · 5 answers · asked by Anonymous in Physics

2006-09-17 21:52:25 · 16 answers · asked by bikash p 1 in Other - Science

Would you consider a docter a scientist,
is a docter a type of scientist?

2006-09-17 21:48:47 · 12 answers · asked by Blair 1 in Other - Science

I've got an A level exam in a month and I need help.

The curriculum sheet for my course says I need to know the following:

"recognise and solve equations in x which are quadratic in some form of x, eg. x^4 - 5x^2 + 4 = 0."

I'm working from memory as I can't find a book that covers the subject. I seem to remember having to substitute in: " z = x^2 ".

I can do that and then solve for z (as with a normal quadratic) and I get : z = 4, z = 1.

It's here where i get stuck.

Do I now let z = 4, therefore x = (plus or minus)sqrt 4 and
let z = 1, therefore x = (plus or minus)sqrt 1

This gives me 4 answers, which must be wrong!

Help!

2006-09-17 21:46:06 · 23 answers · asked by mr_sporty_spice 2 in Mathematics

2006-09-17 21:43:03 · 26 answers · asked by Divad 2 in Zoology

Your are porivded with two pure-breeding varieties of the same crop plant; one is resistant to weed-killer and the other is non-resistant.

Explain how you would carry out a genetic experiment to determine whether the resistance is dominant or recessive.

2006-09-17 21:35:21 · 2 answers · asked by pm 1 in Biology

Why u can see the moon in hemisphere???
Please If u know the answer .. write it clearly.. and properly..But don't give stupid answers please

2006-09-17 21:32:47 · 10 answers · asked by ashu 1 in Physics

2006-09-17 21:29:07 · 7 answers · asked by jeff c 1 in Chemistry

2006-09-17 21:20:38 · 17 answers · asked by ben287392 1 in Geography

With Countries pumping Oil from the Earth will the Countries themselves not collapse and fill with OceanWater? If this happens, the landscape of the earth will change drastically.
Along with this change would be the possiblilty that the Earths Weight Distribution would be compromised possibly shifting the Equator as it moves the earth.. Is this scenerio possible? If so, what can we do about it?

2006-09-17 21:17:30 · 4 answers · asked by mr_king5717 2 in Earth Sciences & Geology

2006-09-17 21:12:00 · 25 answers · asked by htssb s 1 in Geography

A person weighs 80N on the surface of the earth.What should be the distance of the person from the centre of the earth such that his weight is 5N?
( radius of earth=1600KM)

2006-09-17 21:00:49 · 3 answers · asked by mysciencebooks 1 in Physics

it is about astrosun

2006-09-17 20:59:27 · 3 answers · asked by ramesh k 1 in Earth Sciences & Geology

Fact1: The pope says religion X is violent.
Fact2: Members of religiion X protest violently in response to pope remarks.

Proposition1: Religion X is violent.

Question. Given Fact1 and Fact2 to be true, is Proposition1 true?

2006-09-17 20:57:32 · 10 answers · asked by ali 6 in Mathematics

6 Machines, each working at the same constant rate together can complete a certain job in 12 days, How many additional machines, each working at the same constant rate, will be needed to complete the job in 8 days? Please provide explaination!

2006-09-17 20:56:03 · 5 answers · asked by banana219 1 in Mathematics

13
∫ 2xdx
10 ? ok what does it mean? it's not my homework (i'm 57 years old) i just want to know,? i forgot most of my calculus from not using it.

2006-09-17 20:47:11 · 6 answers · asked by duhman 3 in Mathematics

its urgent

2006-09-17 20:46:33 · 8 answers · asked by shalu 1 in Other - Science

2006-09-17 20:41:08 · 6 answers · asked by Lutfor 3 in Astronomy & Space

Anything that will help refresh my memory

2006-09-17 20:38:03 · 3 answers · asked by halimeh 1 in Engineering

I'm gonna say So-crates, followed by da Vinci, then da Newt, lastly Einstein (sorry Einey)

2006-09-17 20:28:03 · 15 answers · asked by Anonymous in Other - Science

What time was it in Phoenix?

2006-09-17 20:18:36 · 4 answers · asked by Corey A 1 in Mathematics

2006-09-17 20:12:26 · 1 answers · asked by simi c 1 in Engineering

Water enters a house through a pipe with a dia of 2cm at an abs pressure of 4atm. A 1 cm pipe leads to a second floor bathroom 5m above .When the flow speed at the inlet pipe is 1.5 m/s. What is the flow speed, the pressue and volume flow rate in the bathroom

2006-09-17 20:12:12 · 3 answers · asked by Robert W 1 in Physics

No joke! Do you realize there is a top secret US agency communicating with aliens living with us on Earth right now? You are talking to one REAL ALIEN! Guess what?? If you don't believe me the joke is on you! Ha ha ha! Aliens want to help people. They are perfect in every way. They are made up of pure light. They want us to succeed. They think we are building our own tomb in the middle of space. They have no need to compete with us. They are superior in every way. There is only pure love. They know all.

2006-09-17 20:10:45 · 11 answers · asked by Anonymous in Astronomy & Space

earth is round no then the staying down shold be inwards no

2006-09-17 20:06:13 · 12 answers · asked by ezhil p 1 in Geography