diff --git a/2019-20/presentation/presentation.tex b/2019-20/presentation/presentation.tex
index fecc4af..e5c8ae5 100644
--- a/2019-20/presentation/presentation.tex
+++ b/2019-20/presentation/presentation.tex
@@ -2,10 +2,10 @@
 
 \usetheme{Antibes}
 
-%\usepackage{pgfpages}
-%\setbeameroption{show notes on second screen=left}
+\usepackage{pgfpages}
+\setbeameroption{show notes on second screen=left}
 %\setbeameroption{show notes}
-\setbeameroption{hide notes}
+%\setbeameroption{hide notes}
 %\setbeameroption{show only notes}
 
 %%%%% Remove Subsection bar from header
@@ -45,7 +45,7 @@
 	\hspace{1em}%
 	\insertframenumber
 }
-\title{ The KM3NeT project \\ ARCA + ORCA }
+\title{The KM3NeT project\\ ARCA + ORCA}
 
 \date{April 21st, 2020}
 \author{E.T. de Boone}
@@ -119,7 +119,7 @@
 		\item 2 Main objectives
 			\begin{itemize}
 				\item Determine the Neutrino Mass Hierarchy
-				\item Observe the Universe using Neutrino’s
+				\item Observe the Universe with highly energetic Neutrino’s
 			\end{itemize}
 	\end{itemize}
 \end{frame}
@@ -127,12 +127,13 @@
 	\item Neutrino Mass Hierarchy
 		\begin{itemize}
 			\item Neutrino's have mass
+			\item flavour eigenstates $neq$ mass eigenstates
 		\end{itemize}
 
 	\item Universe
 		\begin{itemize}
-			\item Counterpart to IceCube
 			\item Objectives to confirm icecube findings
+			\item Counterpart to IceCube - Galactic Plane in FoV
 		\end{itemize}
 }
 
@@ -145,10 +146,10 @@
 \note[itemize] {
 	\item Spread over large part of mediterranean sea
 	\item Reason for locations: deep water
-	\item Succesor to: \begin{itemize}
-		\item ANTARES (Fr): only ten km from 
-		\item NEMO (It)
-		\item NESTOR (Gr)
+	\item Succesor to and experience from: \begin{itemize}
+		\item ANTARES (Fr)
+		\item NEMO (It) - Pilot
+		\item NESTOR (Gr) - Pilot
 	\end{itemize}
 	\item Greece is pending future funding
 }
@@ -172,7 +173,7 @@
 \end{frame}
 \note[itemize] {
 	\item ORCA in Fr, ARCA in Italy
-	\item Combined sensitivity from GeV to above PeV
+	\item Combined sensitivity from GeV to above PeV: 6 orders of magnitude
 	\item ORCA:
 		\begin{itemize}
 			\item Focus on atmospheric neutrinos
@@ -183,20 +184,21 @@
 			\item Focus on (extra)galactic neutrinos
 			\item sparsely packed $\mapsto$ TeV to PeV $\nu$'s
 		\end{itemize}
+	\item shared technology
 }
 
 %%  Technology  %%
 \section{Detector Design}
 	\begin{frame}
 		\frametitle{Detector Design}
+			\note[item]{ Old design => Markov 1960 multiple predecessors }
+			\note[item]{ compare with IceCube, ANTARES, DUMAND }
 		\pause
 		\begin{figure}
 			\includegraphics[width=0.8\textwidth]{images/principal-idea-neutrino-telescope-icecube-with-text.png}
 		\end{figure}
 	\end{frame}
 	\note[itemize]{
-		\item Old design => Markov 1960 multiple predecessors
-		\item compare with IceCube, ANTARES, DUMAND
 		\bigskip
 		\item Cherenkov light
 		\item Digital-Optical Module
@@ -212,8 +214,9 @@
 				\end{figure}
 			\column{0.5\textwidth}
 				\begin{itemize}
-					\item Digital Optical Module \\(April 2013)
-					\item Detection Unit \\(May 2014)
+					\item Digital Optical Module \\(Apr 2013)
+					\item Detection Unit (3 DOMs)\\(May 2014)
+					\item Detection Unit (18 DOMs)\\(Dec 2015)
 				\end{itemize}
 		\end{columns}
 	\end{frame}
@@ -234,6 +237,13 @@
 				\end{itemize}
 		\end{columns}
 	\end{frame}
+	\note[itemize]
+	{
+	\item lattice structure (also on prev slides)
+	\item data transmission fibre-optics (1 Gbps per DOM)
+	\item $31 \times 18 = 558$ PMTs per string
+	\item $558 \times  115 = 64 170$ PMTs per block
+	}
 
 % Digital Optical Modules
 %%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -256,7 +266,9 @@
 	\end{frame}
 	\note[itemize]
 	{
+	\item PMT: gain $10^6$
 	\item Acoustics: resolution to 20 cm $\mapsto$ 1 ns
+
 	}
 
 	%%
@@ -336,7 +348,9 @@
 	\end{frame}
 	\note[itemize]
 	{
-	\item
+	\item LED: 470nm, fully controlled from shore ($I$, $f$) 
+	\item comparison of timings on the same string
+	\item Acoustics: position calibration
 	}
 	%%
 	\begin{frame}
@@ -349,7 +363,7 @@
 	\end{frame}
 	\note[itemize]
 	{
-	\item LED: 470nm, fully controlled from shore ($I$, $f$) 
+	\item $^{40}$K is background but also calibrator
 	\item bioluminescence: marine sciences, effect of upto 10\%
 	\item
 	}
@@ -362,7 +376,6 @@
 			\item L0: 0.3 photo-electrons in PMT (in DOM)
 			\item L1: 2 hits in separate PMTs within 25ns
 			\item L2: use orientation of PMTs
-				\note { L2 halves the remaining hits }
 		\end{itemize}
 	\end{frame}
 	\note[itemize]
@@ -475,7 +488,7 @@
 		\end{figure}
 	\end{frame}
 
-	%%
+	%% Diffuse
 	\begin{frame}
 		\frametitle{IceCube and Expected Signal}
 		\begin{itemize}
@@ -509,14 +522,23 @@
 		\end{figure}
 	\end{frame}
 
-\subsection{Glashow Resonance}
+	%% Point like
 	\begin{frame}
-		\frametitle{Glashow Resonance}
-		\begin{figure}
-			\includegraphics[width=0.9\textwidth]{images/km3net-arca-eff-area-glashow-resonance.png}
-		\end{figure}
+		\frametitle{Expected Signals: Point like sources}
+		\begin{itemize}
+			\item Good Angular Resolution
+			\item Galactic Sources can be probed
+		\end{itemize}
 	\end{frame}
 
+%\subsection{Glashow Resonance}
+%	\begin{frame}
+%		\frametitle{Glashow Resonance}
+%		\begin{figure}
+%			\includegraphics[width=0.9\textwidth]{images/km3net-arca-eff-area-glashow-resonance.png}
+%		\end{figure}
+%	\end{frame}
+
 
 
 
@@ -538,4 +560,12 @@
 			Question Time
 		\end{center}
 	\end{frame}
+
+	\begin{frame}
+		\frametitle{}
+	\end{frame}
+	\begin{frame}
+		\frametitle{Deployment of Strings}
+		\url{https://www.youtube.com/watch?v=7HKHW0hLxt4&list=PLL9OR_-tW5qOtfZigqVpzMmTSwkMjCT1s&index=8}
+	\end{frame}
 \end{document}