diff --git a/common/modules/scientific-method.org b/common/modules/scientific-method.org
index 786f255..4fbc484 100644
--- a/common/modules/scientific-method.org
+++ b/common/modules/scientific-method.org
@@ -1,50 +1,50 @@
 #+COLUMNS: %40ITEM %10BEAMER_env(Env) %9BEAMER_envargs(Env Args) %10BEAMER_act(Act) %4BEAMER_col(Col) %10BEAMER_extra(Extra) %8BEAMER_opt(Opt)
 #+INCLUDE: "prelude.org" :minlevel 1
 
 * The scientific method
   :PROPERTIES:
   :CUSTOM_ID: main
   :END:
 ** How we built our scientific knowledge
   :PROPERTIES:
   :CUSTOM_ID: short
   :END:
 *** The experimental method 					 :B_picblock:
     :PROPERTIES:
     :BEAMER_opt: pic=GalileoGalilei, leftpic=true, width=.22\linewidth
     :BEAMER_env: picblock
     :BEAMER_act:
     :END:      
      - make an \emph{observation}
      - formulate an \emph{hypothesis}
      - set up an \alert{experiment}
-     - formulate a \emph{theory}
+     - elaborate a \emph{theory}
 ***    
     And then we \alert{reproduce} and \alert{verify}.
 #+BEAMER: \pause
 *** Reproducibility is the key 					 :B_picblock:
     :PROPERTIES:
     :BEAMER_opt: pic=Karl_Popper, leftpic=true, width=.16\linewidth
     :BEAMER_env: picblock
     :END:      
 #+latex: \begin{quote}
      non-reproducible single occurrences are of no significance to science\\
      \\
      \mbox{} \hfill \scriptsize Karl Popper, \emph{The Logic of Scientific Discovery}, 1934
 #+latex: \end{quote}
 
 ** Reproducibility, today
 *** Reproducibility (Wikipedia)
     the ability of an entire experiment or study to be \emph{reproduced}, either by the researcher or \emph{by someone else working independently}.\\
     It is one of the main principles of the scientific method.
 *** Why we want it
     - foundation of the scientific method
     - accelerator of research: allows to build upon previous work
     - visibility: reproducible results are cited more often
       # {
       #  \scriptsize
       #   Piwowar et al. \emph{Sharing Detailed Research Data Is Associated with Increased Citation Rate}. PLoS ONE 2(3): e308, 2007
       # }
     - transparency of results eases acceptance
     - necessary for industrial transfer\\
       #+latex: \hfill \alert{reproducibility is \emph{the essence} of \emph{industry}}!