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Monthly Archives: January 2013

How to make a bow and arrows using flint tools

31 Thursday Jan 2013

Posted by richardmilton in Stone age tools

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This video by woodcraft expert Ray Mears is truly worth watching. Mears uses nothing but flint implements and natural materials from the woods and shows how to make a bow, with flint tools, how to make, straighten and fletch arrows, and how to make fire using flint and iron pyrites with fungus as tinder.

One specially interesting point is that he uses a mixture of pine resin and charcoal to glue his arrowhead to the arrow, but he doesn’t boil up pine bark – instead he searches for and scrapes away natural excrescences of resin. A second interesting point is that he makes glue to attach the feathers by chewing bluebell bulbs!

Watch here http://www.disclose.tv/action/viewvideo/121673/Making_A_Bow_And_Arrow_And_Fire_With_Stone_Age_Tools_Ray_Mears_Bushcraft/

Visit The Museum of The Stone Age here http://www.stoneagetools.co.uk

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Why would anyone want to retouch a flint tool?

10 Thursday Jan 2013

Posted by richardmilton in Stone age tools

≈ 2 Comments

There’s a question that’s been bothering me for some time. Many flint human artefacts show evidence of retouching to the edges, apparently either to blunt them, to make them easier to hold, or to sharpen them. But why exactly would anyone want to sharpen the edge of a flint flake or blade? If you strike a flake or blade from a core, you get an object which usually has a continuous edge that is – literally – sharper than a razor. Flint can take an edge that it only a few molecules thick, far thinner and sharper than the finest steel, which is why flint is still used today by some surgeons for their scalpels. So why mess up a near perfect cutting edge by retouching it with an antler tine or bone point? I can understand if the aim is to make a denticulate saw-blade for cutting through wood, but not for the vast majority of flint tools – knives, scrapers, axes, adzes and the like. Has anyone done any comparative trial experimentally on this issue?

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The mystery of the green stones

06 Sunday Jan 2013

Posted by richardmilton in Iron Age, Stone age tools

≈ 5 Comments

One of the mysterious green rocks - slag from an iron bloomery.

One of the mysterious green rocks – slag from an iron bloomery.

Isn’t it amazing what you can find just lying around?  A friend told me about a field near my village where he had found strange looking green stones. I searched where he told me and found a rich scatter of them – some glassy and vitreous, some cinder-like or slag-like.The stones seemed to be the residue of some smelting process – but what metal was smelted, who smelted it – and where did they get metallic ore in the South Downs?The reason for my surprise is that the Downs consist of chalk, capped by clay-with-flints – not geological formations that I had ever associated with metallic ores.  But here I was mistaken.  There are numerous brick works along the line of the South Downs, built to take advantage of the outcropping clay of the Reading Beds.Among these brick clay beds, I now learned, are found nodules rich in iron – as much as 35% or 40%.  The nodules supplied a whole iron-making industry in the Wealden area for centuries, from the beginning of the Iron Age, through the Roman occupation until late medieval times.

The manufacturing process was relatively simple. For two thousand years, people have been building a small kiln-like structure from clay  (or digging a smallish hole in the ground and lining it with clay) to create a simple smelter known as a ‘bloomery’.

A 'bloom' of iron - note fragments of flint and slag embedded in its surface.

A ‘bloom’ of iron – note fragments of flint and slag embedded in its surface.

A fire is started in the bloomery and charcoal and crushed iron ore are added through the top – just like a modern blast furnace.  The process is continued for six or seven hours, adding charcoal and iron ore, removing the slag from the bottom and topping up the furnace with it.  The end result is a roughly circular lump of iron at the bottom of the furnace called a ‘bloom’, weighing several kilogrammes.

The bloom is later processed in one of a number of ways to purify it further, either by hammering or by heat treatment, and is ultimately made into tools, harness,  weapons and a dozen other household items.

I went back to the site of my earlier finds and looked more closely.  I found more green glassy rocks and more slag.  But this time I found something else – a rusty lump weighing almost one kilogramme.  It took me some time to be sure –checking weight, density and filing off a corner to expose bright metal – but my rusty and eroded lump  was an iron ‘bloom’.  Not only was it a solid mass of metal, some of the smelting impurities were visible in the form of small fragments of flint and slag buried in the surface.

Unfortunately there is no way of dating the iron other than its archaeological context and this is ambiguous.  However, in my village there is evidence of at least five Roman buildings including one in the field where I found the bloom.  So until I unearth further evidence, my money is on it being Roman.

Visit The Museum of The Stone Age: http://www.stoneagetools.co.uk

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Recent Posts

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  • How to make a bow and arrows using flint tools
  • Why would anyone want to retouch a flint tool?

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