Room A1 "Wormhole"

Are the purple objects pushable?

What happens if a particle hits a purple object?

The particle leaves the second portal in a different direction to that which it entered the first. Is that significant?

Try firing particles into the rightmost portal from different directions.

Particles change direction when passing through portals in a clockwise manner i.e. if they enter on the right, they'll leave on the bottom, enter on the bottom and they'll leave on the left, and so on.

You'll need to use each of the emitters to fire particles at the portal from all four different directions. After opening the central door, use the right-arrow to assist with activating the two receivers that operate the main door.