Can a blade really be that sharp.

R

RazrBreed

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I was watching this preview for the movie DOA, which looks awful, it can be seen here
http://www.worstpreviews.com/trailer.php?id=290&item=0

At around 26 seconds left, you see a cloth go over a sword, and the sword cuts the cloth with only the gravitational force. is it possible for something to be that sharp, and for this to happen or is this just Hollywood BS.

if this is in the wrong place, I do apologize.
 
LOL

Mortal Kombat meets Charlie's Angels. What a joke.






Think you have your answer.
 
I would say yes and no. There have been knives that can get down to a few microns thick, such as obsidian and some medical blades. But it is impractical and near imposable to get small FB let alone a sword that even close to that sharp. The edge would also be so thin and weak that it would fold over and serve no practical purpose as a weapon.
 
i wouldnt think the terminal velocity of a falling piece of cloth would create enough force to slice it in half.
 
MORIMOTOM said:
i wouldnt think the terminal velocity of a falling piece of cloth would create enough force to slice it in half.
Click to expand...

Agreed!

If the cloth was falling at a very fast speed (near impossible because of wind resistance) then a sharp blade could cut it.

Heck, if you had a piece of cloth traveling fast enough a 2 x 4 would split it (it would have to be very, very fast).;)
 
Well, there are stories told about an ancient steel, the real Damascus steel, that could cut ladies handkerchiefs merely by gravity. However, none of these swords are still in existence today to prove that.
 
i read an article in a magazine a few years ago about a damascus steel that wasnt damascus as we know it. there was no folding of steel but the composition of the steel that left tiny pockets of carbide like material in the steel. in this article it said knives like these were in fact so sharp they were capable of doing such a feat as cutting a falling silk cloth. it was in a reputable science magazine so i tend to believe what i read.
 
Please don't believe me!
But I read somewhere years ago (another forum I believe) , about katanas made specifically for that cutting tests. The blade needs to be VERY brite to keep that sharpness, so is useless for anything else than cutting silk!

So bad I can't remember where I read or the credibility of the site. :thumbdn:


BETO
====================
Sorry for my english :o
 
I just tried it with the sharpest knife I have and or have seen. It didn't work. I even tried it with a pair of silk boxers so they'd be heavier :p The knife I used has a 10'' blade with a thinned out fully convexed zero edge. I guarantee the edge is thinner and sharper than that of those used on any "mystical ancient samurai swords". I'd love to see it actually happen, but I don't think it at all possible. Maybe a Ginsu could do it :D
 
My youngest uncle told me that story when I was a little kid 40 years ago, and I've heard it several times since. It seems though, that it's never actually been observed by anyone with their own eyes first hand. I put it in the same category as many ebay knife descriptions: So many ebay knives are either "awesome", "rare", or "razor sharp" and many are ALL THREE! Wow!

I guess there may be some type of warped truth to it though, because if I ever get one that is both awesome and razor sharp that would be extremely rare! :D Regards,ss.
 
the original damascus was called wootz steel it was made by putting carbon steel in a special oven with carbide pieces around it there also had to be a piece of old wootz in the oven then heating it until the steel glowed the japenese craftsmen had a special tempering process and the katanas they made were very sharp they could cut a piece of silk dropped over it and then cut through a machine gun barrel and not lose there edge i read this in a blacksmithing book
 
what about hair splitting sharp? does that qualify as sharp? when i do fundraisers, i get a kick out of splitting a hair for someone with their knife after i sharpen it. some people said they thought that the witch on the bugs bunny cartoon was the only person who could split a hair.
 
Wootz and pattern-welded steel are the two types of "damascus". Both are still being made and we've had quite a few discussions here about them.

Unfortunately, no old Japanese swords could cut off machine gun barrels, not that the swordsman stood much of a chance of getting close enough to try. :)

Here is a recent thread with a lot of good information:
Damascus Steel blades today a fake?
 
richard j said:
in this article it said knives like these were in fact so sharp they were capable of doing such a feat as cutting a falling silk cloth. it was in a reputable science magazine so i tend to believe what i read.
Click to expand...

texasboy said:
they could cut a piece of silk dropped over it and then cut through a machine gun barrel and not lose there edge i read this in a blacksmithing book
Click to expand...

There's an old quote, attributed to 19th Century writer Dinah Mulock Craik that goes "Don't believe anything you hear, and only half of what you see". I think this should also apply to books and magazine articles that offer anecdotal evidence without a shred of proof. ;)
 
:thumbup: I don't know about the sword, but I do like the way that blonde put her bra on.:thumbup:

I would rent this movie just for that.
 
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