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Lethal water to take note of here! To get past the lethal gap, put a portal across the gap on the ceiling, and put another one near you. Go ahead and crouch into the side room once you get over there. You’ll find a lot of miscellaneous objects, including a radio after the first play through, although not a whole lot to read this time. | Lethal water to take note of here! To get past the lethal gap, put a portal across the gap on the ceiling, and put another one near you. Go ahead and crouch into the side room once you get over there. You’ll find a lot of miscellaneous objects, including a radio after the first play through, although not a whole lot to read this time. | ||
[[File:Portal_Chamber_18_ceiling_placement.png|thumb|left|This portal location should place you confidently on the next ledge.]] | [[File:Portal_Chamber_18_ceiling_placement.png|thumb|left|This portal location should place you confidently on the next ledge.]] | ||
Continuing on, there is again a nice portalable ceiling, but no way to simply walk into a portal. You can, however create one on the next platform’s wall, and get a running jump into it (put the portal a little low, as even if you jump too high, you can still get into a portal below you... unless you’re carrying the radio). The platform you’re aiming to land on does not cover as large of an area, so be sure to adjust your fall accordingly. Also take note that you might fly through [[Portal/Tips and Advanced Techniques#Angle | Continuing on, there is again a nice portalable ceiling, but no way to simply walk into a portal. You can, however create one on the next platform’s wall, and get a running jump into it (put the portal a little low, as even if you jump too high, you can still get into a portal below you... unless you’re carrying the radio). The platform you’re aiming to land on does not cover as large of an area, so be sure to adjust your fall accordingly. Also take note that you might fly through [[Portal/Tips and Advanced Techniques#Angle flinging|at an angle]], making it tougher to accurately land where you expected. This can be prevented by actually landing on the bottom of the wall portal before coming the whole way through. | ||
[[File:Portal_Chamber_18_first_fling.png|thumb|left|Drop into here and you'll have the necessary momentum to get to the button.]] | [[File:Portal_Chamber_18_first_fling.png|thumb|left|Drop into here and you'll have the necessary momentum to get to the button.]] | ||
Another ceiling portal, and you’re off to platform 3, followed by wall placement to get you onto platform 4. Unfortunately, the door is closed, and tracing the wire leads to yet another platform. Some familiar sights are here, letting you know how you should get to it; there’s the extended panel showing your top portal placement, and a checkered floor on a level below you showing your bottom portal placement. Fling away! | Another ceiling portal, and you’re off to platform 3, followed by wall placement to get you onto platform 4. Unfortunately, the door is closed, and tracing the wire leads to yet another platform. Some familiar sights are here, letting you know how you should get to it; there’s the extended panel showing your top portal placement, and a checkered floor on a level below you showing your bottom portal placement. Fling away! | ||
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==Part 2== | ==Part 2== | ||
{{Achievement|name=[[Portal/Transmission_Received|Transmission Received]]|image=Portal achievement Transmission Received.jpg|width=350px|description=The second radio is a mystery at first, because you can hear it, but can’t seem to see it. It is on top of the pellet receiving container. Place one portal on the floor in front of the container, and another on the low checkered floor to the right of the entrance. [[Portal/Tips and Advanced Techniques#Post- | {{Achievement|name=[[Portal/Transmission_Received|Transmission Received]]|image=Portal achievement Transmission Received.jpg|width=350px|description=The second radio is a mystery at first, because you can hear it, but can’t seem to see it. It is on top of the pellet receiving container. Place one portal on the floor in front of the container, and another on the low checkered floor to the right of the entrance. [[Portal/Tips and Advanced Techniques#Post-fling maneuvering|An adjustment once you fly through]], and you’ve got it. Bring it to the back of the area with a small button (below the cube dispenser area).|progress=21|total=26}} | ||
[[File:Portal_Chamber_18_turret_room.png|thumb|left|Water and pellets and turrets (oh my!).]] | [[File:Portal_Chamber_18_turret_room.png|thumb|left|Water and pellets and turrets (oh my!).]] | ||
If you can manage to look through the glass and not get your view obstructed by turret fire, you’ll notice two laser beams indicating turrets facing away from the entrance, and two turrets facing to your right. Because of that, when you press the small button and open the entrance, go through on the left side by crouching under the support bar first to avoid any bullets. | If you can manage to look through the glass and not get your view obstructed by turret fire, you’ll notice two laser beams indicating turrets facing away from the entrance, and two turrets facing to your right. Because of that, when you press the small button and open the entrance, go through on the left side by crouching under the support bar first to avoid any bullets. | ||
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Get to a slightly higher ground, such as on top of the extended platform near the pellet receiver. Place a portal in line with the first turret (closest to the entrance), at about the right height so that you can fling into the turret and end up safely on its platform. Quickly move if necessary to the edge of the platform to avoid the second turret’s fire. The game will auto-save once you have done so (after each turret), so you will not have to repeat them all. Place a portal to get ready to fling to the second turret (the one currently closest to you), and another one on the ground of the main platform. Jump through and fling into the second. The third turret will see you, so quickly jump towards the wall you just flung from, shooting another portal low on the wall, and come on through to the main platform. The third turret you can easily jump to from a portal on the wall, and similarly for the fourth. | Get to a slightly higher ground, such as on top of the extended platform near the pellet receiver. Place a portal in line with the first turret (closest to the entrance), at about the right height so that you can fling into the turret and end up safely on its platform. Quickly move if necessary to the edge of the platform to avoid the second turret’s fire. The game will auto-save once you have done so (after each turret), so you will not have to repeat them all. Place a portal to get ready to fling to the second turret (the one currently closest to you), and another one on the ground of the main platform. Jump through and fling into the second. The third turret will see you, so quickly jump towards the wall you just flung from, shooting another portal low on the wall, and come on through to the main platform. The third turret you can easily jump to from a portal on the wall, and similarly for the fourth. | ||
Now you can safely proceed as normal to the button. A different method must be used to fling to the cube this time. One way is to press the button, shoot a portal on the angled platform after it stops, and then another on the low floor below you. The first fling will only get you far enough to reach the floor again, but place the same color portal again so that you can [[Portal/Tips and Advanced Techniques# | Now you can safely proceed as normal to the button. A different method must be used to fling to the cube this time. One way is to press the button, shoot a portal on the angled platform after it stops, and then another on the low floor below you. The first fling will only get you far enough to reach the floor again, but place the same color portal again so that you can [[Portal/Tips and Advanced Techniques#Multi flinging|double-fling]] over to the cube. | ||
Alternately, prepare by shooting a portal at a high wall near the pellet receiver, and another at one of your accessible walls. Press the button, look through the portal, and wait for the platform to finish moving. Go through, shoot one portal on this platform, [[Portal/Tips and Advanced Techniques#Changing | Alternately, prepare by shooting a portal at a high wall near the pellet receiver, and another at one of your accessible walls. Press the button, look through the portal, and wait for the platform to finish moving. Go through, shoot one portal on this platform, [[Portal/Tips and Advanced Techniques#Changing both portals mid-flight|and another]] below you before you hit, and you will fling to the cube. | ||
Either way, take the cube back toward the entrance, go back to the button, press, portal, and through you go. Cube on the button, and on to the last test. | Either way, take the cube back toward the entrance, go back to the button, press, portal, and through you go. Cube on the button, and on to the last test. | ||
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# Orange portal on the wall that you can jump into. Go through. | # Orange portal on the wall that you can jump into. Go through. | ||
# Orange portal on the ceiling above your current platform (two-dot), directly above your floor portal. Look into the floor portal to prepare for the next portal, then enter. | # Orange portal on the ceiling above your current platform (two-dot), directly above your floor portal. Look into the floor portal to prepare for the next portal, then enter. | ||
# Orange portal, as you fall, on the far left corner (or close to it) of the floor of the three-dot platform. Flying back into the blue portal, you will fly up through this new portal and be able to [[Portal/Tips and Advanced Techniques#Post- | # Orange portal, as you fall, on the far left corner (or close to it) of the floor of the three-dot platform. Flying back into the blue portal, you will fly up through this new portal and be able to [[Portal/Tips and Advanced Techniques#Post-fling maneuvering|maneuver onto the platform]] with the big button. Continue and press the small button to enter the turret room. | ||
# Blue portal on the scorch mark located on the wall you just entered from. Aim a little low and to the right, but make sure the pellet will still enter this. | # Blue portal on the scorch mark located on the wall you just entered from. Aim a little low and to the right, but make sure the pellet will still enter this. | ||
# (8-10) Orange portals on the spots that each turret’s laser is at on the wall. Wait for the pellet to travel through so it can hit the turret before shooting your next orange portal. This time, don’t worry about the turret farthest from you. | # (8-10) Orange portals on the spots that each turret’s laser is at on the wall. Wait for the pellet to travel through so it can hit the turret before shooting your next orange portal. This time, don’t worry about the turret farthest from you. | ||
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<li> Orange portal on the angled panel as soon as it has stopped moving. Very quickly continue all the way around the panel, exiting the room again from the opposite side of the panel (in order to skip the slow crouching). Run past the small and big buttons, falling into your existing blue portal. If you have done this fast enough, you will be flinging towards the cube. All 4 turrets are still active, but if you are all the way in the back and centered left and right in the cube area, none will be able to see you. Grab the cube, crouch, and use it as a shield against the two left turrets (stay a little to the right to avoid the right two turrets) as you inch closer to the edge. There is a room directly below where you're standing. This part can be tricky. You'll need to walk off the ledge while holding the cube, and then immediately move backwards (and possibly sideways) so that you land on the ledge of the room below you. Move back to avoid additional turret fire. | <li> Orange portal on the angled panel as soon as it has stopped moving. Very quickly continue all the way around the panel, exiting the room again from the opposite side of the panel (in order to skip the slow crouching). Run past the small and big buttons, falling into your existing blue portal. If you have done this fast enough, you will be flinging towards the cube. All 4 turrets are still active, but if you are all the way in the back and centered left and right in the cube area, none will be able to see you. Grab the cube, crouch, and use it as a shield against the two left turrets (stay a little to the right to avoid the right two turrets) as you inch closer to the edge. There is a room directly below where you're standing. This part can be tricky. You'll need to walk off the ledge while holding the cube, and then immediately move backwards (and possibly sideways) so that you land on the ledge of the room below you. Move back to avoid additional turret fire. | ||
<li> Orange portal on a wall on either side of you. Take the cube with you through this portal. Take note that you will be jumping into a wall portal and coming out through a floor portal, so you should be sure to move sideways or you may fall back in. Now with your back towards the near wall, move left and look up and right. | <li> Orange portal on a wall on either side of you. Take the cube with you through this portal. Take note that you will be jumping into a wall portal and coming out through a floor portal, so you should be sure to move sideways or you may fall back in. Now with your back towards the near wall, move left and look up and right. | ||
<li> Orange portal on the extended panels above what is the four-dot platform. Walk with the cube through it and onto the four-dot platform. Now you need to fling both yourself and the cube back to the button. You may want to [[Portal/Tips and Advanced Techniques#Flinging an | <li> Orange portal on the extended panels above what is the four-dot platform. Walk with the cube through it and onto the four-dot platform. Now you need to fling both yourself and the cube back to the button. You may want to [[Portal/Tips and Advanced Techniques#Flinging an object|drop the cube in the portal]] first, but it is possible to [[Portal/Tips and Advanced Techniques#Flinging with an object|fling while holding the cube]]. Place the cube on the button. Walk to the ledge and jump to the lower area that has the floor portal but do not jump through the portal. Instead, simply walk into the portal once you have landed. You should now be on the four-dot platform. The door is now open and you can walk through it to the final room.</ol> | ||
Portals 11-16 are the same as portals 25-30 in the bronze description. | Portals 11-16 are the same as portals 25-30 in the bronze description. | ||
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Additional reductions can also be made to this room to achieve sub-16 counts. | Additional reductions can also be made to this room to achieve sub-16 counts. | ||
* Multiple methods can get you to the point of entering the turret room after using only 6 portals, reducing the count by one. | * Multiple methods can get you to the point of entering the turret room after using only 6 portals, reducing the count by one. | ||
* This method gets you there with only 5, reducing the gold method by two. Move as far towards the drop and to the left towards the wall as possible. If you crouch and look to the right of the normal ceiling, you will be able to see a tiny part of the next higher ceiling. Shoot a blue portal there, and an orange one anywhere reachable. Be sure to maneuver yourself when you go through so that you land safely on the two-dot platform. Now face the three dot platform and move back and right as much as possible. Place an orange portal on the floor just in front of you. Hop to the other side of this. Look into the portal while crouching right next to it and spot the three-dot platform. You will want to place the next portal on the far left corner of this platform. Get ready, and walk through. As soon as you do, shoot a blue portal there, and hold left. Look down to aim into the orange portal, and fling up, [[Portal/Tips and Advanced Techniques#Post- | * This method gets you there with only 5, reducing the gold method by two. Move as far towards the drop and to the left towards the wall as possible. If you crouch and look to the right of the normal ceiling, you will be able to see a tiny part of the next higher ceiling. Shoot a blue portal there, and an orange one anywhere reachable. Be sure to maneuver yourself when you go through so that you land safely on the two-dot platform. Now face the three dot platform and move back and right as much as possible. Place an orange portal on the floor just in front of you. Hop to the other side of this. Look into the portal while crouching right next to it and spot the three-dot platform. You will want to place the next portal on the far left corner of this platform. Get ready, and walk through. As soon as you do, shoot a blue portal there, and hold left. Look down to aim into the orange portal, and fling up, [[Portal/Tips and Advanced Techniques#Post-fling maneuvering|maneuvering]] to the button platform. You can now continue at portal 7 in the gold method, which will really be portal 5. | ||
* In the last room, place the portal on the two dot platform as far left as possible. When flinging up from this, it is very difficult, but possible, to place a portal on the angled platform directly from here, reducing the count by one. When facing the angled platform, hold right as you come up, shoot the portal when you can, and then hold left and look down to hopefully fall back in. | * In the last room, place the portal on the two dot platform as far left as possible. When flinging up from this, it is very difficult, but possible, to place a portal on the angled platform directly from here, reducing the count by one. When facing the angled platform, hold right as you come up, shoot the portal when you can, and then hold left and look down to hopefully fall back in. | ||