I watched a couple of decent, lengthy U-Tube presentations by “The
Histocrat”. The first one talks about
humans moving into Britain
a million years ago. Over the last
million years Britain
has suffered several ice ages severe enough to drive all the humans out of Britain,
and as many interglacial periods were the forests and the game and the humans
came back. With both the ice ages and the
interglacials lasting 10,000 years or more.
Used to be, they only wrote about humans settling in Britain
after the last ice age went out 10,000 years ago. Apparently they have discovered a couple of
sites in Britain
that are much older since the last book I read was written. They failed to describe just how these older
sites were dated. Carbon 14 dating only
works back 30-40 thousand years. A
million years is too old for carbon 14 dating.
They did discuss
the seas breaking thru the straits of Dover,
creating the English Channel and cutting Britain
off from the Continent. And sinking
Doggerland. They were a little vague on
just when this happened, and after it happened how did humans get across the
Channel and onto English soil? No
discussion of when early humans, especially Heidelberg man and Neanderthal man
might have developed boats. It doesn’t
take much of a boat; the Channel is only twenty miles wide and can be crossed
in a birch bark canoe in good weather.
The second one,
which started up automatically after the first one finished, picks up the story
around 8000 BC with the Beaker Folk. It
claimed that DNA evidence shows a turnover in British population with the
appearance of Beaker Folk graves. They
fail to describe how this DNA testing works and how many samples of DNA going
back before 8000 BC they have. Some
discussion of introduction of copper and bronze into a flint using late
Neolithic Britain. The author clearly
knows little about metal work, he describes bronze as “hard”. It isn’t very hard. Flint
is much harder than bronze. Bronze is
tougher than flint; you can make a bronze sword that works. You cannot make a flint sword; flint is
brittle as glass and would break the first time you struck anything with it. The author makes a big deal over copper versus
bronze. I don’t see that, bronze is a
straight forward alloy of copper with 10% tin which gives a metal much tougher
than plain copper. But other than adding
the tin, bronze works the same way as copper does. You can cast it and sharpen it the same way
as copper. A copper smith doesn’t have
to learn much to become a bronze smith.
The author discusses smelting copper from the ore (oxides or sulfides of
copper). Actually copper working got
started with native copper. There used
to be nuggets of pure copper just lying around to be picked up. They are mostly gone by now, but they were
important back in the day. The native
copper can be hammered into shape, or melted and cast into shape, much simpler
that figuring out how to smelt copper from ores.
No comments:
Post a Comment