The column that has
been in contact with sunlight has created two levels inside the column. The
upper level has been pushed and raised to the top because of the gases that the
microorganisms of the lower level have caused. The upper level has a clearer
color and contrasts with the other level. The color is grayish brown, probably
due to the death of microorganisms at this level. On the other hand, a layer of
gases has been created, as we have already said. This layer with the small
amount of water in the upper level causes oxygen to pass to the lower level.
For this reason, microorganisms that function without oxygen can not be
developed.
We have lowered the
upper level and removed the gas layer, we also introduced some water.
We see in the
inferior level diverse colors, purple, brown, orange and the characteristic
black that has been intensified enormously.
Let's talk about the column that has been kept in the dark.
No major changes are seen in the column. The colors have been maintained. The
column has been compacted a little by the top, the cracks have disappeared. The
same amount of water is maintained at the top and from time to time there are
bubbles there are bubbles that rise from the end of the column, gases generated
by microorganisms.
What makes you think that a lack of colour means that there are no bacteria? Bacteria are everywhere! :-)
ReplyDeleteWhat produces all the colours in the lower part of the columns? Which microorganisms produce each one?
What sort of gases could be the ones generated in the column in the dark?