Walkthroughs: The Five Cores
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Step out of the cabin and walk onto the platform with the four steel valves. Leave them alone for now. Pan to the right and walk towards the stairs leading up. Go up the stairs. Notice the three strange devices. Also notice that all of them have some sort of grey piece of paper. Only the piece of paper inside the right most device has some dots on it.
The right most device with the dotted piece of paper
Go back down the stairs. Walk back to the cabin in front of the building. Enter it. Walk past the faded core and go down the stairs. Enter the main hall and walk straight forward onto the blue balcony. Walk to the left. Press the button on the stand in front of the planetarium. Notice that the planets stop briefly at the 10 o'clock position and finally they will stop at the 3 o'clock position. Turn around and re-enter the balcony. Walk forward to go outside at the opposite site.
Notice the three buttons here. Press the buttons in the order 2, 1 and 3. The little metal pillars on the board will start to move for a while. If you made a mistake and nothing happens pull the lever at the right side of the board to reset it and try again. Go back onto the balcony, turn to the left and enter the main hall. Keep going forward. Go up the stairs, walk past the faded core and exit the building via the cabin. Walk to the right. Go up the stairs. Look at the left most device to see that this one has a drawing too now.
The left most device with the dotted piece of paper