# paganinio

Senior Members

74

1. ## Easy math quiz

Reasonable Cheers, Severian Just like a question which has been given the 'official answer',but in fact there's more to think about. There're 2 evidences that Severian is right. 1,The original question is weird.'f(x) = 3x^2 + x^2 - 12X -4'=0 2,The original answer is also a little weird.'(3+/-sqrt13)/2'
2. ## Geometry

use a better/more accurate title next time instead of 'geometry' i've done the picture, i use D,E instead of M,N, just the same
3. ## Ending the 0.999~ = 1 debates

has this been posted before? 0.999...=0.333...+0.666...=1/3+2/3=1
4. ## A few challenge problems

joml88, thankyou for giving us such a good weblink, there i found the best math message board on the internet(what? that's not the best? tell me which is better!)
5. ## A few challenge problems

how can a Rt.Triangle be balanced on a fulcrum on the side?

7. ## colours and moods

SFN forum is in blue, is it the appropriate color for science discuss?
8. ## Dreams...What do they mean? How are they linked to our everyday lives?

then what make you remember something in real life instead of other things? how many cells are used to store this thing maybe
9. ## Can you do it in 20 words or less...

Evolution is the study of.........HOW LIVING THINGS CHANGE/DEVELOPE. Chaos Theory is the study of.........???? Geography is the study of...........ENVIRONMENT/PLACES OF WORLD Physics is the study of ..........PRINCIPLES OF MATTER/ENERGY Bio genetics is the study of.....LIVING THINGS' GENES 4 words for each explanation on average

11. ## What Do You Think, Are Photons Matter Or Energy??

I am sure you will get more information if you ask the question here: Hardware Hangout Forum http://www.neowin.net/forum/index.php?showforum=13
13. ## The difference between Speed and Velocity

hmm,velocity and speed are often similar-they have the same numbers but AVERAGE velocity and AVERAGE speed ain't-they don't have the same numbers in most cases. i didn't know the true difference between velocity and speed before that.

agree
15. ## Dreams...What do they mean? How are they linked to our everyday lives?

I often dream of someone shouting, then suddenly wake up, there's really someone shouting under my building, and the words that he/she is shouting is the same as the words he/she shouts in my dream.
16. ## Dreams...What do they mean? How are they linked to our everyday lives?

SMALLVILLE:HEREAFTER comes to mind the boy in the drama can see the image of how people will die now you can see the image of how dogs will die~~~
17. ## What is your dominant eye?

sorry i didn't read coquina's explanation of the poll, i thought left eye was my dominant eye just because my left eye has better eyesight
18. ## Cell Phones

I don't use cellphone now:) I think cellphone has potential danger to our health.

20. ## Maths teaser

WEIGHT approximately equals MASS*9.8, a balloon's weight is a VECTOR with positive NUMBER If you don't regard it as a vector, then it's a positive number

22. ## Zero to the Zero

hmm you're not right 1, In High School Math, 0^0 and 0/0 are both undefined. 2, But in University, I am not sure. 3, Even if 0^0 is undefined, you cannot say 0^0 'EQUALS' undefined. It's a serious mistake.
23. ## Do we spend enough on space exploration?

Me too, Aliens would find us so we needn't spend any But on the way of Science, there's never 'enough'.
24. ## Any RPG gamers here?

i'm into Diablo II and NOX P.S.NOX isn't a famous game
25. ## Halo2 vs Doom3

seen many Half-Life 2 vs Doom 3, never seen Halo 2 vs Doom 3 before~~~
×