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Sentinel: Descendants in Time Hints
How can I get across the spine bridge?
1 of 26: This bridge looks rather like the rib-cage of a large animal. The end of this bridge is not close enough to the walkway. The bridge will need to be turned before it will be accessible.
2 of 26: The controls to turn the bridge are not on the bridge, but they are nearby just the same.
3 of 26: Notice the lever near the end of the bridge? What is the lever attached to?
4 of 26: Look on the walls of the three buildings near the bridge. A pipe passes along all three buildings, ending at the lever.
5 of 26: There are three wheels, one by each building, which are all connected to the pipe.
6 of 26: The pipe has something passing through it that can help turn the bridge. If you were to turn one of the wheels, then go back and pull the lever, the bridge would move.
7 of 26: Whether the bridge moves enough or too much will depend on which wheel you turned, and by how much.
8 of 26: Each wheel has a diagram inside it of a narrow line, thickening around the circle of the wheel to a wide line.
9 of 26: The thickness of the circle indicates how much (of whatever it is) will pass through the pipe.
10 of 26: The bridge is fairly exacting -- you will need a very precise amount (of whatever it is) passing through the pipe.
11 of 26: On each of the walls of the three buildings there is a diagram. Each diagram shows three circles -- large, medium, and small.
12 of 26: On the wall closest to the bridge, an arrow points to the smallest circle. On the wall farthest from the bridge, an arrow points to the largest circle, and the one in the middle has an arrow pointing to the middle circle.
13 of 26: Whether the indicated circle is large, medium, or small tells us whether the wheel under that diagram can send a large, medium, or small amount of (whatever it is) through the pipe.
14 of 26: You'll have to use trial and error to figure out how to set the various wheels, by using the same logic you would use to measure the weight of an object on a balance-scale that uses counter-weights to compare the two weights.
15 of 26: If you were using a balance-scale with counter-weights, you would start with the heaviest unit of weight to get a rough idea of the weight first.
16 of 26: Using the same logic, start with the wheel under the diagram with the large circle indicated (the one farthest from the bridge), and experiment with it to find the correct setting for that wheel.
17 of 26: Make sure that both the other wheels are shut off (click on the narrowest point of the circle inside the wheel). Then, using the wheel that affects the bridge the most, spin the wheel until it is half on (the spot opposite to the narrowest point of the circle inside the wheel). It is helpful to set the wheel to the half-way point, since the result -- whether too high or too low -- will immediately eliminate half the possibilities.
18 of 26: Go back to the lever and pull it. If the bridge doesn't move enough (and is still to the right of the walkway), then you will know to turn the wheel so that it opens more (toward the thicker part of the circle inside the wheel), if it moves too much (and is to the left of the walkway), you will know to turn the wheel so that it closes (towards the thinner part of the circle inside the wheel).
19 of 26: If you would like to immediately eliminate half the remaining possibilities, then divide the possible choices in half and click on the wheel at the point halfway between the remaining choices. Continue in this manner (pulling the lever in between) until you have found the correct setting.
20 of 26: The goal for setting the first wheel is the same as the goal to compare weights. Keep adjusting the amount until you find the level that isn't quite enough and the adjacent level that is a little bit too much.
21 of 26: We know that the accurate setting for the pipes will be somewhere between the two settings for the large wheel -- but neither setting will be close enough to be able to use the bridge.
22 of 26: You'll need to use the other two wheels to "fine tune" the position of the bridge.
23 of 26: Remember the two settings for the large wheel -- one that isn't quite enough, and the adjacent level that is just a little bit too much? Make sure the large wheel is set so that it is on the setting that isn't quite enough. Now, any adjustments to the other two wheels will add to this amount, bringing the total to somewhere between the two settings for the large wheel.
24 of 26: Once the large wheel is correctly set, move on to the middle wheel and follow the same process as you did to set the large wheel.
25 of 26: When you have found the setting, for the middle wheel, that isn't quite enough (but the next setting is too much), leave the second wheel set at the setting that isn't quite enough.
26 of 26: Move on to the small wheel and repeat the process until you have an exact setting for the bridge to swing into position at the end of the walkway..
