Update day1/hands on 3 exercise

day_1/hands_on_3.ipynb

@@ -2,7 +2,6 @@
  "cells": [
   {
    "cell_type": "markdown",
-   "id": "1a7edaaa",
    "metadata": {},
    "source": [
     "## Data and Metadata (data annotation) - Hands on session"
@@ -10,7 +9,6 @@
   },
   {
    "cell_type": "markdown",
-   "id": "0d5e4ee1",
    "metadata": {},
    "source": [
     "These exercises cover topics introduced in day_1/tutorial_3."
@@ -18,7 +16,6 @@
   },
   {
    "cell_type": "markdown",
-   "id": "005fd24f",
    "metadata": {},
    "source": [
     "## Exercise 1: Exploring a NIX file from data and metadata"
@@ -26,7 +23,6 @@
   },
   {
    "cell_type": "markdown",
-   "id": "db6529d3",
    "metadata": {},
    "source": [
     "1. from the \"day_1/resources\" folder open the NIX file \"2010-04-28-af.nix\" in ReadOnly mode\n",
@@ -40,7 +36,6 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d96379f4",
    "metadata": {},
    "source": [
     "### Your solution"
@@ -49,14 +44,12 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "f28f7327",
    "metadata": {},
    "outputs": [],
    "source": []
   },
   {
    "cell_type": "markdown",
-   "id": "ce1cb60e",
    "metadata": {},
    "source": [
     "## Exercise 2: Create a metadata tree"
@@ -64,7 +57,6 @@
   },
   {
    "cell_type": "markdown",
-   "id": "4a8252e4",
    "metadata": {},
    "source": [
     "With this exercise you will need to get a bit imaginative. Come up with a small set of metadata terms, define a useful structure and store the information in a NIX file.\n",
@@ -73,14 +65,13 @@
     "\n",
     "If you have already conducted experiments of your own, select 4 main categories of metadata and store them in a Section-Property tree that makes sense from you point of view.\n",
     "\n",
-    "If you have not conducted experiments yet, you can come up with an example of your own e.g. store two of your favorite cooking recipies with Ingredients, Hardware required and Steps required as sections and the details as properties.\n",
+    "If you have not conducted experiments yet, think about how to store metadata from the radar trap example; as an example save different radar trap machines in fictional locations, fictional recording dates and fictional car details.\n",
     "\n",
     "The main goal of this exercise is to make you think about how to structure the metadata you want to save."
    ]
   },
   {
    "cell_type": "markdown",
-   "id": "51dd511b",
    "metadata": {},
    "source": [
     "### Your solution"
@@ -89,7 +80,6 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "f65fdcb0",
    "metadata": {},
    "outputs": [],
    "source": []
@@ -111,7 +101,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.5"
+   "version": "3.8.3"
   }
  },
  "nbformat": 4,