I am not a native English speaker and you either are the same or there is some bot who writes the posts here. At least I try to use some punctuation, which may be not totally correct sometimes, but still, I try to do my best. Or, maybe you use some STT (speech to text) software, in which case you should adjust the text created, even a little bit, before you post it.
“dumping new clear waste” you wrote .. it is somehow the opposite of what you really were trying to say – “dumping nuclear waste”
If you downloaded videos of the experiment you mentioned, just attach them here on the site, so that everybody can see them, or provide the links where people can see them - in case they are still online somewhere on some server.
Here is a scenario that I propose:
Anyone who is able to open such a portal (regardless of the method used), should start recording (video and audio), open the portal, walk through, record for a few seconds on the other side and then return and post the recording. Or, if afraid to walk through, at least fix the recording device to some stick and push it through the portal, then pull it back to see what it recorder on the other side.