Science & Mathematics - 20 July 2006

So when i read the solution to the first one i felt like a complete moron...but i'm stumped again...here's the link for the second puzzle...what's the catch here?

http://community.engineering.com/puzzler/ieee/

2006-07-20 05:26:21 · 3 answers · asked by Dustin S 2 in Engineering

does such a machine exist which can analayse our thoughts and dreams without anything attached to our head? is there any device that converts our thoughts and dreams into images or pictures (that can be seen on a visual display screen)without any strings or bugs attached to our head?sleep laboratories analayse dreams by attaching something to our head.can it be done without fixing anything to our head ? can sleep laboratories analayse dreams wirelessly?

2006-07-20 05:22:44 · 4 answers · asked by sourojyoti82 1 in Engineering

Aside from the fact that 365 days is how long the earth takes to make a full orbit around the sun, why is it considered a year? Is there any significance to 365? Why not just say 100 days is a year?

2006-07-20 05:22:14 · 12 answers · asked by vintagex50s 2 in Astronomy & Space

i have to make a project on forensic science and the use of chemistry and chemicals in it. also specify the role of detectives in it.

2006-07-20 05:22:08 · 1 answers · asked by adi 1 in Chemistry

..why do the stupid things zoom into my flat and straight into something??

D'oh think I may have just answered my question, they're flying to fast??

2006-07-20 05:21:22 · 10 answers · asked by Sweetcakes 3 in Other - Science

Well, I have a new theorem about random number. Just before publish it, I wish to know whether any others know about this, so please, those brilliant guys and girls, try your best to answer it.

Given a situation that, for a total choices of n, each choice has a same probability to be played, ie 1/n. After t times of plays, which t is a very large value, if not infinity, is it true to says that, ALL choices of n will have same frequency of occurance, ie t/n (t * 1/n) after t plays?

Please takes note that, the t is a very very large value, and we predict it in a way of mathematically, not through experiments or computer programs.

2006-07-20 05:18:41 · 11 answers · asked by wyeechen 2 in Mathematics

2006-07-20 05:18:34 · 3 answers · asked by Joey Boots 1 in Earth Sciences & Geology

2006-07-20 05:17:25 · 8 answers · asked by Squiggs 2 in Other - Science

same charges repel.. protons dont repel in the nucleus.. caz if they do..nucleus wudnt have existed.. so.. protons come so close that they start attracting and hence the nucleus.. whts the reason????... whts the theory behind it?...

2006-07-20 05:17:23 · 3 answers · asked by BoB-SeriouS 2 in Chemistry

I wish to convert my Colchester Bantam motor and
switchgear from 3 phase 415V to single phase 240V. I am looking for a supplier to supply what I need, any advice would be appreciated. I must retain the forward/reverse capability of the motor. The current 3 phase motor code is -Type BK2412G B56. Do I need a capacitor start/run motor?

2006-07-20 05:13:20 · 5 answers · asked by Anonymous in Engineering

2006-07-20 05:11:33 · 28 answers · asked by joew 1 in Mathematics

2006-07-20 05:11:12 · 2 answers · asked by Anonymous in Chemistry

2006-07-20 05:09:50 · 13 answers · asked by Kwaku 1 in Earth Sciences & Geology

I want factual evidence

2006-07-20 05:09:20 · 21 answers · asked by Anonymous in Astronomy & Space

2006-07-20 05:08:42 · 10 answers · asked by SUVAJIT 1 in Mathematics

I`ve personally never come across objects moving at constant speed.With forces of gravity acting everywhere,i do not see where this theory would apply in reality.Please help.Genuine answers please?Thanks.

2006-07-20 05:04:21 · 12 answers · asked by mamanoelia 3 in Astronomy & Space

Can a fire be ignited using ice?

2006-07-20 05:02:55 · 12 answers · asked by ? 2 in Chemistry

2006-07-20 05:02:22 · 10 answers · asked by suresh k 1 in Geography

I heard an iteresting option that was, in OUR own history, anyone who travels great distances to a new land does so to reap the spoils of that journey.

2006-07-20 04:57:37 · 19 answers · asked by Anonymous in Astronomy & Space

This includes plug-in electric cars, hybrids which use a turbine to generate electricity only, ethanol cars running on fermented ethanol (current ethanol requires more energy to produce than it provides when burned), or any other vehicles with zero or near zero emissions. When do you think we will break the 100MPG barrier with a consumer vehicle under real-world conditions? What do you think the first high-efficiency technique to hit the market will be?

2006-07-20 04:57:34 · 4 answers · asked by bakkster_man 2 in Engineering

2006-07-20 04:57:12 · 4 answers · asked by cvallance@sbcglobal.net 1 in Chemistry

This has perplexed me as to what the baby would be classed as, alien or human. I know the genetic structure will not change to something like ET and would remain human, but is the baby classed as alien?

2006-07-20 04:57:05 · 39 answers · asked by Anonymous in Astronomy & Space

You're in a room, with no metal objects, except 2 iron nails (pins). One of them is a magnet. How do you identify the magnet?

2006-07-20 04:53:19 · 16 answers · asked by miranda 2 in Physics

2006-07-20 04:52:40 · 17 answers · asked by Fatboy_Howie 1 in Other - Science

hybridization of N atom in inorganic chemistry

2006-07-20 04:52:34 · 3 answers · asked by Anonymous in Chemistry

http://img230.imageshack.us/img230/8886/1004188kp4.jpg

2006-07-20 04:45:12 · 5 answers · asked by shanet963 1 in Zoology

Do you think in the future that the human race will be forced to live on other planets because of the condition of Earth?

2006-07-20 04:44:19 · 11 answers · asked by Video Pod 2 in Astronomy & Space

2006-07-20 04:42:45 · 6 answers · asked by Mobidus Lee 3 in Astronomy & Space

I mean cientifically ¿Are there some theory about it? Do you know it?

2006-07-20 04:42:17 · 5 answers · asked by helenadetroya 4 in Physics

Whats it like on the other side?

2006-07-20 04:41:40 · 13 answers · asked by -mystery- 3 in Biology