1 ene 1998 año - Aperture Science releases several testing elements, such as the Excursion Funnel, the Thermal Discouragement Beam, the Aerial Faith Plate, and the Pneumatic Diversity Vent (Game Informer, April 2010 issue) (Portal 2 Demo (Part 2) - E3 2010) (Portal 2 Demo (Part 3) - E3 2010)

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- 1998
- Aperture Science releases several testing elements, such as the Excursion Funnel, a tractor beam-like funnel made of liquid asbestos; the Thermal Discouragement Beam, a laser to be used with a Weighted Pivot Cube to destroy Sentry Guns and activate some buttons; the Aerial Faith Plate, a catapult plate flinging into the air Test Subjects or any other object upon contact; and the Pneumatic Diversity Vent, a variant of the Vital Apparatus Vent used for distributing objects to Test Chambers.

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