As a publication, OPCS-4 is split into two volumes; a tabular list (Volume I) and an alphabetical index (Volume II). An electronic version is also available. However, a number of supplementary publications are also used by coding staff.
The prize was claimed in 1864 by Louis Pasteur, as he published the results of an experiment he did to disproved spontaneous generation in these microscopic organisms. 1  Observation(s): From Needham s and Spallanzani s experiments, it was known that soup that was exposed to the air spoiled bacteria grew in it.
The vacuum flask was designed and invented by Scottish scientist Sir James Dewar in 1892 as a result of his research in the field of cryogenics and is sometimes called a Dewar flask in his honour.