Did Aperture Science stole Black Mesa gravity gun?

[AverageSinner]

if you think about it the Portal gun has a thing that can lift nearby items, and the gravity gun can lift huge and long distanced items, its either Black Mesa stole the idea from aperture science and improve it, or aperture science stole the idea but didn't copy it perfectly, Please leave your opinion/thoughts below

[Renfrew]

The most we know is one side of the story which suggests that Black Mesa stole from Aperture (Cave Johnson in Portal 2). Dr Kleiner has mentioned Aperture, but the quote only mentions Aperture with respect (i.e. as competitors), but acknowledges that in their efforts to rush to compete with Black Mesa their experiment failed (referring to the Borealis). This makes perfect sense as Aperture is shown to be wild (for example praying mantis DNA experiment) and spends way too much testing equipment than actually selling it; look at how the original "quantum tunnelling device" looked on the posters in Aperture Science Innovators section, such technology is revolutionary for that time period and yet somehow the Portal Gun still needs to put through tests after all that time, instead of the technology being sold (otherwise we would see it in Half-Life). Black Mesa is shown to have a clear focused goal in mind when testing, nowhere near as wild as Aperture.

[AverageSinner]

Originally posted by ꧁Renfrew꧂:

The most we know is one side of the story which suggests that Black Mesa stole from Aperture (Cave Johnson in Portal 2). Dr Kleiner has mentioned Aperture, but the quote only mentions Aperture with respect (i.e. as competitors), but acknowledges that in their efforts to rush to compete with Black Mesa their experiment failed (referring to the Borealis). This makes perfect sense as Aperture is shown to be wild (for example praying mantis DNA experiment) and spends way too much testing equipment than actually selling it; look at how the original "quantum tunnelling device" looked on the posters in Aperture Science Innovators section, such technology is revolutionary for that time period and yet somehow the Portal Gun still needs to put through tests after all that time, instead of the technology being sold (otherwise we would see it in Half-Life). Black Mesa is shown to have a clear focused goal in mind when testing, nowhere near as wild as Aperture.

Aperture probably have finish the testing of the portal device and ready to sell it to the public, but since there is an AI flooding the facility with neurotoxin (Glados) in the mind of caroline that has been activated, they thought that caroline still remember herself as a human when she became an Ai and could help them out with the portal device, turns out she didn't, the only thing keeping them from selling it to the public is glados herself with an attachment of an hardware (according to wheatley) that making her itch everytime she didnt test, and the only thing glados have left to test is the portal device

[Renfrew]

Cave Johnson's messages date back from the 1950s up to his death some time in the 1980s (assumed to be 1982, the same year as his last known recording). We know that the Portal Gun was invented before Cave Johnson's death based on the posters of the "quantum tunnelling device", and the fact that there are 1950s chambers that make it essential for you to have a portal device otherwise they are impossible, as well as the aforementioned posters insisting that you need the device to test. Until Cave died there was no GLaDOS that's around 30 years with a Portal Gun and doing nothing with it but test.

Edit:
One thing to note is the Portal Gun could have been around for even longer than 1950s to 1980s, as there is no confirmed date when it was invented, but this is the earliest evidence of the technology's existence, which naturally indicates that it was invented in the very early 1950s.

[AverageSinner]

Originally posted by ꧁Renfrew꧂:

Cave Johnson's messages date back from the 1950s up to his death some time in the 1980s (assumed to be 1982, the same year as his last known recording). We know that the Portal Gun was invented before Cave Johnson's death based on the posters of the "quantum tunnelling device", and the fact that there are 1950s chambers that make it essential for you to have a portal device otherwise they are impossible. Until Cave died there was no GLaDOS that's around 30 years with a Portal Gun and doing nothing with it but test.

The goal of making GLaDOS is to store cave's conciousness when he know he was gonna die to moon rocks, but then he loose faith so he tell his engineer to store caroline's instead, as i say in the previous reply they're probably gonna sell the portal gun to the public when GLaDOS was already activated (to make caroline more fresh and can do things better before making this big decision for the company) (she's probabably a grandma and just sits still untill GLaDOS was ready), but glados flooded it with neurotoxin instead not remembering caroline at all and killing everybody in the facility (well not everybody), and also keep testing everybody that survives cus she has an itch attached to the hardware

[AverageSinner]

Originally posted by Professional introvert:

The Gravity gun was meant to pay homage to the Anti-mass Spectrometer seen in the first game, specifically the design, but then Portal rolled in and some of its features were recycled. The thing is, in the comic "Lab Rat" you can clearly see the Gravity gun laying on the table, which looks almost nothing like the Portal gun, nor anything Aperture's ever created. It doesn't help that the Gravity gun is first used by Gordon 20 years later, which would mean that the Gravity gun was first invented way before and presumably stolen by Aperture to be implemented into their tech. I also heard a theory stating that the Gravity gun is powered by a Xen crystal, something Aperture definitely wouldn't have access to, except if they stole it.

In case you don't believe me:

https://static.wikia.nocookie.net/half-life/images/b/bb/Test_chamber.jpg/revision/latest?cb=20100322232215&path-prefix=en

https://static.wikia.nocookie.net/half-life/images/6/62/Gravity_Gun.jpg/revision/latest?cb=20090527025854&path-prefix=en

http://lambdageneration.com/wp-content/uploads/2016/01/1383164761-2.jpg

Alternatively, the Gravity gun was based on Combine technology, which bears many similarities with Aperture's, but this would conflict with my previous statement as it suggests that the Gravity gun wasn't created by Aperture and existed before the Combine took over.

That is the case if Aperture did stole the gravity gun idea they probably didn't copy it perfectly, or black mesa did stole the gravity gun idea and they improve with xen crystals (the gravity gun can hold any object while the thing in the portal device only available to some aperture science object including weighted cube, radio, etc and not including chairs, pieces of remains, etc)