How Can You Separate Salt and Pepper Without Physical Contact?

[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

 

[Sakha]

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

 

[some_one]

like obama says
YES WE CAN

 

[some_one]

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

 

[arildno]

Are the grains of equal size?

 

[arildno]

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

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

 

[some_one]

we need to separate them without touching the mix physicly

 

[some_one]

the granes are equal in size

 

[some_one]

first clue
acctually it doesn't matter

 

[arildno]

Equal density?Same form?

 

[rootX]

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

different mass?

 

[some_one]

what is your method of separation?

 

[rootX]

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

2) Use air force...

 

[Evo]

Pepper doesn't melt.

 

[rootX]

Pepper doesn't melt.

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 ... )

 

[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

 

[LowlyPion]

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

 

[some_one]

biiiiingooooo
you are correct

 

[Evo]

sounds impossible..

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

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

 

[rootX]

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

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

 

[Jimmy Snyder]

I actually mixed a pinch of salt and of pepper with the intention of boiling the mixture. I figured the pepper would drift to the bottom of the water and the salt would diffuse. Then after boiling the salt would form a crust above the pepper. But as soon as I put the mixture in the water, the salt sank to the bottom and the pepper floated on top. Separate.

 

[some_one]

no physical touching aloud
static electricity is the answer

 

[Jimmy Snyder]

no physical touching aloud
static electricity is the answer

Because electricity is not physical?

 

[sketchtrack]

I have a better question, how do you separate a mix of salt and pepper using no energy?

 

[DaveC426913]

no physical touching aloud

OK, for future reference, it's 'allowed'.

 

[Sakha]

Static electricity is still physical interaction for me. Anyways, with static electricity you grab pepper or salt?

 

[LowlyPion]

Static electricity is still physical interaction for me. Anyways, with static electricity you grab pepper or salt?

pepper

 

[Werg22]

How about a centrifuge? I figure that salt is heavier than pepper.

 

[Sakha]

How about a centrifuge? I figure that salt is heavier than pepper.

You can't have physical interaction, and getting the mix into a centrifuge without physically touching it would be pretty hard.

 

[DaveC426913]

Static electricity is still physical interaction for me.

It most distinctly is not.

You could slip a solid object such as a piece of paper between the balloon and the mixture. No physical contact.