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The Orange Box: Portal Hints
How can I cross the large floor gap past the stairs?
1 of 7: After you go through the door, look up to find another extended wall segment with an orange portal on it.
2 of 7: Remember the whole momentum thing.
3 of 7: You need to go through the orange portal with enough momentum to land on the other side of the gap.
4 of 7: Try looking down at the lower floor beneath the gap.
5 of 7: It's portal-friendly, so why not open a blue portal on it?
6 of 7: After you do, drop down so that you fall into the blue portal.
7 of 7: That'll shoot you out through the orange portal with enough momentum to cross the gap.