#+title: Testing Beamer in Org
#+author: Eric S Fraga
#+OPTIONS:   H:2 
#+EXPORT_EXCLUDE_TAGS: noexport

#+startup: beamer
#+LaTeX_CLASS: beamer
#+LaTeX_CLASS_OPTIONS: [presentation]

#+startup: oddonly

#+COLUMNS: %40ITEM %10BEAMER_env(Env) %10BEAMER_envargs(Env Args) %4BEAMER_col(Col) %10BEAMER_extra(Extra)

#+latex_header: \usepackage{tikz}

* The first topic
*** Nested blocks
    Use distillation for separation of two components.
***** The problem                                                                                      :BMCOL:
      :PROPERTIES:
      :BEAMER_col: 0.3
      :END:
******* Model                                                     :B_example:
        :PROPERTIES:
        :BEAMER_env: example
        :BEAMER_act: <2->
        :END:
        \[ y = \frac{\alpha x} {1 + (\alpha -1) x} \]
******* Goal                                                        :B_block:
        :PROPERTIES:
        :BEAMER_env: block
        :BEAMER_act: <3->
        :END:
        Minimise energy consumption

***** Distillation                                       :BMCOL:B_definition:
      :PROPERTIES:
      :BEAMER_col: 0.6
      :BEAMER_env: definition
      :BEAMER_act: <4->
      :END:
      #+begin_center
      #+attr_latex: width=0.9\textwidth
      [[file:~/s/figures/teaching/introduction/distillation-unit.pdf]]
      #+end_center

      \vfill
***** Approach
      :PROPERTIES:
      :BEAMER_act: <5->
      :END:
      We can change both the number of trays and the reflux rate.