Science & Mathematics - 14 August 2006

I am working on anti oxidants in fruits and need Catechin, Furfural, HMF, Folin C reagent, Caffeic acid. These chemicals are not available locally and i have no cash to import. What should i do

2006-08-14 23:56:03 · 2 answers · asked by Godloves 1 in Other - Science

Going through the description of time given by Newton, I found that Newton had formulated the definition in a very complex language. Can anyone simplify it?

2006-08-14 23:55:36 · 15 answers · asked by ravikiran_sastry 2 in Physics

2006-08-14 23:50:51 · 6 answers · asked by weirdpunkaj_0622 1 in Chemistry

2006-08-14 23:50:25 · 12 answers · asked by sparkly star 1 in Earth Sciences & Geology

2006-08-14 23:49:20 · 11 answers · asked by wolverinez00 1 in Other - Science

Three Englishmen and three Frenchmen work for the same company.Each of them knows a secret not known to others.They need to exchange these secrets over person-to-person phone calls so that eventually each person knows all six secrets.None of the Frenchmenknows English, and only one Englishman knows French.What is the minimum number of phone calls needed for the above purpose?
(a) 5
(b) 10
(c) 9
(d) 15

2006-08-14 23:47:05 · 9 answers · asked by Rohit C 3 in Mathematics

i am not sure of the name for these types of mirrors-from one side of the mirror i can see only the reflection but from other side of the mirror i can see thro'. its like those mirrors used by cops in interrogation rooms...

2006-08-14 23:45:50 · 6 answers · asked by temp_domain 1 in Physics

yet another trick question

2006-08-14 23:44:29 · 11 answers · asked by Anonymous in Biology

2006-08-14 23:43:51 · 10 answers · asked by mika 2 in Other - Science

2006-08-14 23:42:04 · 7 answers · asked by Brian T 2 in Physics

The diameter of the circle is 3 cm.AB(horizontally drawn) and MN(vertically drawn) are two diameters such that MN is perpendicular to AB.In addition,CG is perpendicular to AB such that AE : EB=1 : 2,and DF is perpendicular to MN such that NL : LM=1 : 2.C,G,D and F are on the circumference of the circle.CG is drawn to the left of MN and DF is drawn below AB.The length of DH in cm is
(a) 2*sqrt(2)-1
(b) (2*sqrt(2)-1)/2
(c) (3*sqrt(2)-1)/2
(d) (2*sqrt(2)-1)/3

2006-08-14 23:40:17 · 3 answers · asked by Rohit C 3 in Mathematics

2006-08-14 23:39:05 · 10 answers · asked by YAZ 1 in Earth Sciences & Geology

from its length the saying 'as long as the blue nile' is derieved

2006-08-14 23:34:29 · 13 answers · asked by Tgirl 1 in Geography

2006-08-14 23:34:22 · 5 answers · asked by sonu 2 in Other - Science

Its raining once again, do you think the summer has gone so soon? should I pack away my flip flops just yet?

2006-08-14 23:29:39 · 29 answers · asked by Emma 4 in Weather

2006-08-14 23:29:31 · 16 answers · asked by Anonymous in Physics

Rectangular tiles each of size 70 cm by 30 cm must be laid horizontally on a rectangular floor of size 110cm by 130cm such that the tiles donot overlap. A tile can b placed in any orientation so long as its edges are parallel to the edges of the floor. No tile should overshoot any edge of the floor. The maximum number of tiles that can b accomodated on the floor is
(a) 4
(b) 5
(c) 6
(d) 7
The answer is 6 but how?

2006-08-14 23:27:17 · 3 answers · asked by Rohit C 3 in Mathematics

when plants are genetically modified, to grow faster, do they produce more oxygen and thus take in more carbon dioxide?

2006-08-14 23:25:56 · 4 answers · asked by caprilover79 3 in Botany

2006-08-14 23:25:05 · 31 answers · asked by Anonymous in Geography

In a chess competition involving some boys and girls of a school,every student had to play exactly one game with every other student.It was found that in 45 games both the players were girls, and in 190 games both were boys.The number of games in which one player was a boy and the other was a girl is
(a) 200
(b) 216
(c) 235
(d) 256

2006-08-14 23:24:43 · 8 answers · asked by Rohit C 3 in Mathematics

For which value of k does the following pair of equations yield a unique solution for x such that the solution is positive?
x^2 - y^2 = 0
(x-k)^2 + y^2 = 1
(a) 2
(b) 0
(c) sqrt(2)
(d) -sqrt(2)

2006-08-14 23:17:43 · 4 answers · asked by Rohit C 3 in Mathematics

Chemical Reactions.

2006-08-14 23:17:43 · 1 answers · asked by Joey 2 in Other - Science

2006-08-14 23:15:55 · 15 answers · asked by jags 1 in Botany

2006-08-14 23:12:08 · 37 answers · asked by Felipe A 1 in Astronomy & Space

we have a black box with the circut inside.
how we could distinguish that the circut is THEVENEN or NORTHON?

2006-08-14 23:10:50 · 2 answers · asked by asal 2 in Engineering

2006-08-14 23:07:31 · 5 answers · asked by Phymath 1 in Astronomy & Space

Or just 'showerproof'? it doesnt say if its waterproof as i dont have tags anymore

2006-08-14 23:01:06 · 14 answers · asked by Anonymous in Chemistry

2006-08-14 23:01:04 · 14 answers · asked by Anonymous in Physics

2006-08-14 22:55:19 · 24 answers · asked by jiLLian007 1 in Geography

2006-08-14 22:54:32 · 8 answers · asked by tembaland 2 in Astronomy & Space