What is the hardest substance?
 

In a casual conversation today the question came up, "Is there anything
harder than a diamond?"

Is there?

I am off to do a google but I will welcome any knowledge that anyone might
want to add.

"Diamond Jim" wrote in message
. com...
In a casual conversation today the question came up, "Is there anything
harder than a diamond?"

Is there?

I am off to do a google but I will welcome any knowledge that anyone might
want to add.

I've never heard of anything harder. Good question!

Harold

On Wed, 16 Mar 2005 10:56:41 -0800, "Harold and Susan Vordos"
wrote:


"Diamond Jim" wrote in message
.com...
In a casual conversation today the question came up, "Is there anything
harder than a diamond?"

Is there?

I am off to do a google but I will welcome any knowledge that anyone might
want to add.

I've never heard of anything harder. Good question!

Harold

Some men seem to think 'they' are harder but that is a whole different
newsgroup.

"Diamond Jim" wrote in message
. com...
In a casual conversation today the question came up, "Is there anything
harder than a diamond?"

Is there?

I am off to do a google but I will welcome any knowledge that anyone might
want to add.

[There's something recently cooked up out of "buckyballs" that's supposed to
be harder than any diamond, although only very small quantities have been
made - look up "ultrahard fullerene". Carbon nitride is another candidate,
but it's awaiting a sample large enough for testing. See
http://home.att.net/~numericana/answ...cs.htm#hardest

If by "a diamond" you mean a natural diamond, there have been some synthetic
diamonds made lately by direct gas deposition that are supposed to be much
harder, see: http://www.physlink.com/News/022504CVDDiamonds.cfm ]

Andrew Werby
www.unitedartworks.com

Andrew Werby wrote:

"Diamond Jim" wrote in message
. com...

In a casual conversation today the question came up, "Is there anything
harder than a diamond?"

Is there?

I am off to do a google but I will welcome any knowledge that anyone might
want to add.


[There's something recently cooked up out of "buckyballs" that's supposed to
be harder than any diamond, although only very small quantities have been
made - look up "ultrahard fullerene". Carbon nitride is another candidate,
but it's awaiting a sample large enough for testing. See
http://home.att.net/~numericana/answ...cs.htm#hardest

If by "a diamond" you mean a natural diamond, there have been some synthetic
diamonds made lately by direct gas deposition that are supposed to be much
harder, see: http://www.physlink.com/News/022504CVDDiamonds.cfm ]

Andrew Werby
www.unitedartworks.com


I can't recall the exact material, but, perhaps two years ago, I read of
a (then) new ceramic-like material that cut diamond quite readilly, with
little wear on itself. I believe this was some abrasive process. I'm not
sure that means it's 'harder'. I suspect you're getting into a semantics
war on what 'harder' actually means. Water can cut things that most
would agree are MUCH harder than water, while causing little 'wear' on
the water.

Dan Mitchell
============

In article , Diamond Jim
says...

In a casual conversation today the question came up, "Is there anything
harder than a diamond?"

Around here the phrase is: "harder than a billy goat's dick..."

Jim


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"Diamond Jim" wrote in message
. com...
In a casual conversation today the question came up, "Is there anything
harder than a diamond?"

Is there?

That's easy. It was that kernal of unpoped popcorn that broke off my tooth
and cost me $500 for a crown.

Larry

On 2005-03-16, Lawrence L'Hote wrote:

"Diamond Jim" wrote in message
. com...
In a casual conversation today the question came up, "Is there anything
harder than a diamond?"

Is there?

That's easy. It was that kernal of unpoped popcorn that broke off my tooth
and cost me $500 for a crown.

Larry

I remember a few years back in the group sci.materials a guy that was
looking for a hard inpenetrable material. I don't remember all of the
responses but one guy talked about safe doors and another talked about
fiber optic casings, another about ceramics and on and on.

The post that killed the thread was the guy that said---If you can find
the girl that I dated in the 11th grade, get her underwear.

John

Diamond Jim wrote:
In a casual conversation today the question came up, "Is there anything
harder than a diamond?"

That's easy, my ex-wife's heart. It is also the coldest substance known
to man......

I thought it was an 18 yr old on prom night........
lg
no neat sig line
"Greg Postma" wrote in message
...
Diamond Jim wrote:
In a casual conversation today the question came up, "Is there anything
harder than a diamond?"

That's easy, my ex-wife's heart. It is also the coldest substance known to
man......

"larry g" wrote in message
...
I thought it was an 18 yr old on prom night........
lg

Chuckle! That, my friend, is so hard it would chip a dog's tooth just to
bark at it.

Harold

"Greg Postma" wrote in message
...
Diamond Jim wrote:
In a casual conversation today the question came up, "Is there anything
harder than a diamond?"

That's easy, my ex-wife's heart. It is also the coldest substance known
to
man......