GT, comments to the article "Created substance with properties of negative mass"

xxx: It turns out, if you create an object (for example, 1 kg) of such a substance, glue it with a normal substance in 1 kg and push it, then the object will stand in place regardless of the effort applied? After all, 1 kg will accelerate by vector, and "-1 kg" against the vector of effort?
PS We are waiting for lanterns and cranes made of such a substance, which do not need to be attached - just put on the ceiling :)

yyy: You will have to cool the room to almost 0 Kelvin.

Zzzz: When did this stop us?