# A puzzle

1. Aug 11, 2008

### some_one

we mix one spoon of salt
and one spoon of pepper together
and mix them

how to separate them without touching the mixed salt and pepper

no physical touching aloud

2. Aug 11, 2008

### Sakha

If no physical touching allowed then we can't physically separate them.
Separating the salt and pepper pots is aloud?

3. Aug 11, 2008

### some_one

like obama says
YES WE CAN

4. Aug 11, 2008

### some_one

when do i need to post the answer to the puzzle?

5. Aug 11, 2008

### arildno

Are the grains of equal size?

6. Aug 11, 2008

### arildno

Let it mature a bit, let people come along with suggestions and questions.

7. Aug 11, 2008

### some_one

we need to separate them without touching the mix physicly

8. Aug 11, 2008

### some_one

the granes are equal in size

9. Aug 11, 2008

### some_one

first clue
acctually it doesnt matter

10. Aug 11, 2008

### arildno

Equal density?Same form?

11. Aug 11, 2008

### rootX

Pepper and salt have different melting points ... is that possible?

different mass?

12. Aug 11, 2008

### some_one

what is your method of separation?

13. Aug 11, 2008

### rootX

put some heat on it and evaporate chillies (collect somewhere : flash -- no touching)

2) Use air force...

14. Aug 11, 2008

### Staff: Mentor

Pepper doesn't melt.

15. Aug 11, 2008

### rootX

sounds impossible..

I am considering something 1400 deg C or over...

I thought pepper has lower melting point than salt
(don't know what kind of bonds it has ... )

16. Aug 11, 2008

### some_one

yeee but pepper which origins from a plant when heated
comes in contact with the oxigen in the air
and gets burned

which is not aloud

17. Aug 11, 2008

### LowlyPion

Take a balloon and rub it on a wool sweater, then hold it right above the mixture.

18. Aug 11, 2008

### some_one

biiiiingooooo
you are correct

19. Aug 11, 2008

### Staff: Mentor

Wouldn't that would be more along the lines of incineration?

20. Aug 11, 2008

### rootX

That never happened in my chemistry class/course/book :shy: