doctorplop

6 ms·

1. 1.▲
   by doctorplop 2y ago

   There is a European producer, the German/Finnish VAC Group. But they also get their raw materials from China (I think). Neodymium magnets are fascinating: they have enabled much smaller and more efficient elevator engines, used as undu
2. 2.▲
   by doctorplop 2y ago

   Sometimes sediments (sand, mud) protect the wooden wreck from decay. Once the wreck is moved, it becomes a race against time to prevent decay. The way that museum wrecks like the Wasa in Stockholm are preserved is by drying every wooden p
3. 3.▲
   by doctorplop 5y ago

   This is a major archeological find. Essentially a Roman villa with frescoed walls whose color is in great condition. Unfortunately the walls are broken into thousands of pieces. The conservators are also racing against time to preserve the