1 00:00:00,960 --> 00:00:03,130 You start at the surface with your finger and you follow the 2 00:00:03,130 --> 00:00:07,000 red line, which is the temperature, up and once you hit 3 00:00:07,000 --> 00:00:10,000 this dashed black line, which is zero Celsius, 4 00:00:10,000 --> 00:00:14,000 that’s your freezing level. You bring your finger over 5 00:00:14,000 --> 00:00:20,190 To the left and look at which pressure or which height 6 00:00:20,190 --> 00:00:23,189 your temperature goes from above freezing to below freezing.