It would be important to recall the most famous null result : the
Michelson-Morley experiment, published in The American Journal of Science,
explained 18 years later.
There are least two types of negative results
1) Contradiction of previously published results. Negative results of this kind
is either they are wrong, you are wrong or it depends on the differences within
the experimental methods used. An example of the latter case would be SPR vs
ITC. SPR
Wasn't another famous negative result the refutation of the vital
principle which presupposed that substances from living entities were
inherently different from those from non-living?
I guess the essential feature of an important negative result is the
clearly-observed absence of something
