Okay and so now we are seeing the
process. Axel is very carefully holding
the sample down etching it in
hydrofluoric acid. The acid is extremely
caustic and that's why we use the
chemically resistant gloves and even
then we don't like to get even the
fingertips into the acid if we can avoid it.
So he'll hold that for about a
minute.
This will take roughly a minute or so
Is it red as a beet?
