The success of the German submarines during World War One had been startling and at the end of the war, those U-boats that had survived were surrendered to the Allies. Britain, America, Japan etc all took their share of the U-boats and used them as templates for their own versions.rom 1918 on, Germany was technically not allowed to have submarines or submarine crews. However, no mechanisms were in place to stop research into submarines in Germany and it became clear that during the 1930âs, Germany had been investing time and men into submarines.
Scarred trees are found wherever there are mature native trees, especially box and red gum. They often occur along major rivers, around lakes and on flood plains, but also at significant (sacred) sites. The scarred tree in the image above stands near the Parramatta River.
This work on scarred trees gives a historical perspective although I donât think there would be any comparable data in the region where I work. Some of the most salient differences are between two kinds of tree sugarbag (with different kinds of hive-entrance) and âground sugarbagâ between layers of rock.