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A blade is the flat part of a tool, weapon, or machine (such as a fan) that normally has a cutting edge and/or pointed end typically made of a flaking stone, such as flint, or metal, most recently steel. A blade is intentionally used to cut, stab, slice, throw, thrust, position and/or place (an example of this is razor wire), shoot (an example of this is the ballistic knife), scrape (an example of this is an ink eraser) or strike an animate or inanimate object.

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Wikipedia about blade

A blade is the flat part of a tool, weapon, or machine (such as a fan) that normally has a cutting edge and/or pointed end typically made of a flaking stone, such as flint, or metal, most recently steel. A blade is intentionally used to cut, stab, slice, throw, thrust, position and/or place (an example of this is razor wire), shoot (an example of this is the ballistic knife), scrape (an example of this is an ink eraser) or strike an animate or inanimate object.

Materials for production

Material for weapon blades has to be carefully selected to achieve a balance between hardness and toughness and their ratio to each is dependent upon the intended use of a blade. In antiquity, the main metal used was copper, then of bronze and later iron. Perhaps the most well known is pattern welding, a technique used for katanas (samurai swords) and blades made to resemble damascus steel blades. This was a very labor-intensive technique - and thus such swords were very expensive.

Various techniques may also be employed to make the blade stronger or harder. Copper and bronze can be "work-hardened" by simply hitting the blade with a hammer while it is cold. Blades made of steel with a high enough carbon content (greater than 0.2%) can be heat-treated by heating the steel up to a critical point (most simple carbon alloys become non-magnetic slightly below that point), then quenching it with forced air, oil, or water depending on the steel. Quenching puts an enormous amount of stress on the metal, and often a sword would break into pieces during that step. If the sword survived heat-treating, it would be tempered by heating it to a relatively low temperature for an extended period of time. The tempering process would make it slightly softer, but also tougher and "springier", and thus less likely to break or chip during everyday usage.

Case hardening is a process of increasing the carbon content at the surface of very low carbon steel. It is done by placing the object to be hardened in a sealed container along with carbon-containing material; in antiquity, this material was usually horn or hide. The container would then be heated until it was glowing red, and held at that temperature for a while, based on the size of the part being hardened, allowing carbon to penetrate the steel by a few thousandths of a centimeter. At that point, the object would be dumped out of the container into a water bath to quench it, resulting in a very hard surface, but completely unhardened core. There is very little evidence of this having ever been done to swords except, perhaps, the very earliest of iron blades. Due to the inherent weakness of a sword's cutting edge, coupled with the high-impact stresses of combat, such a thin hardened surface over a soft core would provide very little advantage in terms of edge-holding, other than mild wear resistance.

Another important aspect of many blades are so-called "fullers". Despite popular belief, fullers were not "blood grooves" that facilitated quicker bleeding of the victim and easier removal after insertion. Rather fullers helped to make a blade stronger and more durable at the core by giving it an I beam cross section, thus reducing the amount of steel needed to keep the spine stiff. This was very important in ancient times when high quality steel was more labor intensive to make, smiths would scrape the fuller with a U shaped tool before hardening and reuse the scraps. Modern day fullers are made by positioning a heated blade over a bottom fuller, setting a like sized top fuller on the top side of the sword, and hitting the top fuller with a hammer.

Search results for Blade

Blade Server Information from Blade.org

Blade.org is an open blade server community dedicated to developing next-generation technologies for blade computing, blade server solutions and blade servers.www.blade.org/

Blade (film) - Wikipedia, the free encyclopedia

Blade is a 1998 vampire action film starring Wesley Snipes and Stephen Dorff, ... Blade grossed $70 million at the U.S. box office, and $130 million worldwide. ...en.wikipedia.org/wiki/Blade_(film)

Blade (1998) - MSN Movies

Blade (1998) overview: synopsis, movie reviews, photos, trailers, movie clips, cast and crew,news, dvd, user reviews, message board and more.movies.msn.com/movies/movie.aspx?m=479018

New Line Cinema : Blade: Trinity

For years, Blade has fought against the vampires in the cover of night, with the ... Blade: Trinity is written and directed by David S. Goyer, who has written all ...www.newline.com/properties/bladetrinity.html

Blade | Barnes & Noble.com

Shop BN.com for Blade and a wide selection of movies including: Action, Animation, Comedy, Drama, Kids, Classics, Sci-Fi and more. Free 3-Day Delivery on orders over...video.barnesandnoble.com/DVD/Blade/Wesley-Snipes/e/794043470...

Images found for Blade

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News about Blade

Blotter: Resident reports razor blade in hamburger

Morgan Hill Times- Saddleback Drive, 3:54 p.m. A resident reported he found a briefcase containing pornography in his yard. The side gate to his yard was left open. - Burger King, East Dunne Avenue, 8:01 p.m. A customer reported she bought a hamburger and took it to a friend's house to eat.http://www.morganhilltimes.com/news/249013-blotter-resident-...

IBM Delivers Breakthrough Storage Capability on Blade Computing Solution Designed for the Office

Marketwire via Yahoo! Finance IBM announced today a storage breakthrough in blade computing that will allow small and medium-sized customers and branch offices to consolidate multiple storage devices onto a single blade computing system.http://biz.yahoo.com/iw/081001/0439265.html

Fujitsu Beefs Up Storage Blades

ServerWatchHard-Core Hardware: With the release of it's newest blade offering, the Primergy SX650, Fujitsu aims to shake up the storage blade market and boost its blade presence.http://redir.internet.com/rss/click/www.serverwatch.com/hrev...

Lost in Time, Like Tears in Rain: Yesterday, ... [Blade Runner 2]

DefamerLost in Time, Like Tears in Rain: Yesterday, we brought you the news that the writing duo behind Eagle Eye had set their sights on Blade Runner 2 — and now, one half of that team is washing his...http://defamer.com/5057053/

Digini Picks Up Funding For Blade3D Tools

Gamasutra Middleware developer Digini raised its first round of funding for Blade 3D, its subscription-based development environment for Xbox 360 and PC. VC firm California Technology Ventures led the round, though the amount of the investment wasn't disclosed. Earlier this year, Digini secured $250,000 in angel funding. Built on Microsoft's XNA Game Studio 2.0 platform, the Blade3D game development ...http://www.gamasutra.com/php-bin/news_index.php?story=20489

News about Blade

Sabertec raises $3 million in latest funding round; poised for growth ...

Austin Business JournalThe company’s new Blade device is now being distributed in the United States. The company says Blade, which attaches to the tailpipe of any car or SUV, not only reduces carbon emissions by 12 percent, but also increases fuel economy. According to ... http://austin.bizjournals.com/austin/stories/2008/10/06/dail...

Samsung Solid State Drive Selected for New HP ProLiant Virtualization ...

Earthtimes ... the world leader in advanced semiconductor technology, announced today that its 32 gigabyte (GB) and 64 GB solid state drives (SSDs) have been selected, after extensive testing, for use in the HP ProLiant BL495c virtualization blade ... http://www.earthtimes.org/articles/show/samsung-solid-state-...

ABOUT THAT BLADE RUNNER 2 IDEA...

Chud.comLot of people got upset last week when the notion of a Blade Runner sequel was brought back to the table, thanks to some side remarks made by Eagle Eye co-writer Travis Wright at a Q&A. /Film reported the story originally and today printed a long ... http://chud.com/articles/articles/16569/1/ABOUT-THAT-BLADE-R...

Second windmill blade manufacturer to put plant in Little Rock

Morning NewsLITTLE ROCK -- Another windmill blade manufacturer will locate a plant in Little Rock, and one of its suppliers will follow, officials announced Wednesday. Netherlands-based Polymarin Composites, a fully owned subsidiary of Emergya Wind Technologies ... http://www.nwaonline.net/articles/2008/10/08/business/100809...

Wind blade makers announce 830-job plant for LR

Arkansas OnlineA manufacturer of high-performance rotor blades for the wind industry and a related business announced Wednesday afternoon that they will open a manufacturing facility in Little Rock — creating 830 jobs within four years at an average of $15 an ... http://www2.arkansasonline.com/news/2008/oct/08/wind-blade-m...

Search results for Blade

blade definition |Dictionary.com

noun . 1. the flat cutting part of a sword, knife, etc. 2. a sword, rapier, or the like. 3. a similar part, as of a mechanism, used for clearing, wiping, scraping, etc.: the blade ... http://dictionary.reference.com/search?q=blade&r=66

Blade Your Ride: Save Gas, Save Money, Stop Global Warming

Attach Blade to your tailpipe and: Reduce emissions of CO2 up to 12%. Reduce emissions of air pollution up to 57%. Save hundreds of dollars per year on gas.http://www.bladeyourride.com/

BLADE Network Technologies — Home Page

Blade Network Technologies homepage. ... Performance Tests & Analysts Papers More. Clabby Analytics: IBM’s iDataPlex & Blade’s RackSwitch:http://www.bladenetwork.net/

Blade Server Information from Blade.org

Blade.org is an open blade server community dedicated to developing next-generation technologies for blade computing, blade server solutions and blade servers.http://www.blade.org/

Blade Magazine - Home Page - The World's #1 Knife Publication

Blade Magazine is the web's best resource for information on current knife news and all knife related information in the knife market./”>
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Videos found for Blade

Rail Blade

Rail BladeA rollerblader tries to grind on a rail but ends up crashing down onto it.Video - Video

Bleach: Shattered Blade

Bleach: Shattered BladeCool, cell-shaded sword fighting game for the Nintendo Wii.Flash - Video

'Blade Runner' banned from Olympics

'Blade Runner' banned from OlympicsA Paralympic gold medalist who runs with prosthetic lower legs has been told he cannot compete at the Olympic Games.South Africa's Oscar Pistorius was born without fibula bones in...Flash - Video

BAMBOO BLADE - 25 [RAW]

BAMBOO BLADE - 25 [RAW]BAMBOO BLADE - 25 [RAW]Flash - Video

Knife Review : Mora 2000 Fixed Blad...

Knife Review : Mora 2000 Fixed BladeJust another requested review of a knife I currently own, I hope you enjoy the video...Flash - Video

Videos found for Blade

the_magic_blade_vidclip_04.wmv

the_magic_blade_vidclip_04.wmvthe_magic_blade_vidclip_04.wmvmsmedia: 5.5 MB w:320px - h:240px

blade_2-tlr2_m480.mov

blade_2-tlr2_m480.moviçin tıklayın Fragman : Blade 2 (16.1Mb, MOV) Resmi Sitesi : www.blade2.comquicktime: 15.7 MB w:480px - h:360px

Tiger_blade2.wmv

Tiger_blade2.wmvmeckern, denn die Stunts und die Fights werden wieder alles gutmachen. Freunde von sogenannter Bräute-Action kommen hier wohl auch auf ihre kosten. Also unbedingt ansehen den Trailer. Tiger Blade F...msmedia: 6.8 MB w:320px - h:240px

blade-trinity-teaser-720x312.mov

blade-trinity-teaser-720x312.movBlade: Trinity Full Windows Media Trailer Blade: Trinity Full Trailer Blade: Trinity Teaser Trailer GD is loadedquicktime: 24.4 MB w:720px - h:312px

oniBladeWarrior_070203_05_free.wmv

oniBladeWarrior_070203_05_free.wmvOnimusha Blade Warriors Trailer Ainsi qu'une ou deux images :msmedia: 10.2 MB w:320px - h:240px

Answers for Blade

Don P

The blade on my Bulldog 10" bandsaw keeps coming off the pulleys. Do you know how to adjust?

Don Pif you just replaced the blade and everything was working fine before,, then all you need to do is tighten the tensioner knob. since you don't have a book,, find the place were a lot of blade is free,...
Jerry E

How do you know when it is time for a new razor blade? How often do you change blades?

Jerry EI'm a woman, but this time of year I shave a lot. I'm of Italian descent so I also have a lot to get rid of. I change my blade when I notice I'm not getting a close shave anymore, or when it seems to ...
Mikki Sue71

Is there a huge difference between a 4 blade & a 5 blade ceiling fan?

Mikki Sue71They may be a little quieter. But airflow, noise and efficiency are all subject to several factors. the link below has some good info.
watshurname

How to tighten up the blade on my katana?

watshurnameIs it real or a copy? If a copy hang it on the wall. If real get a professional to look at it. But if real why do you want to play with it? It's worth thousands depending on the make and maker.
Junie B

What is the blade placement for a lawn tractor? Are they parallel or at 90 degrees to each other?

Junie Bif theyre all belt driven, belt slippage, which is inevitable, will make blade placement irrelevant. the book is probably referring to not installing them upside down.

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