What he's saying is that the beams didn't need to fully melt or liquify, they just needed to be hot enough to become structurally unstable and the tower would collapse under its own weight.
To counter her videos, you could always give up your laptop, PC, TV, cable, smart phone, gaming console, Internet, trendy tennis shoes, delivered food, microwave and electricity and send the money to Africa instead.
The researcher says "seeing actual human bodies may set a more realistic point of comparison than photoshopped bodies presented in mass media". I can't find the paper to see if it factored in that some of the people in the drawing class might have a good idea of what 'actual human bodies' look like. For examples, the beach, the changing room at a gym or pool, or someone who works as a massage therapist or nurse/caretaker. I would also like to know how the anxiety of being a new student in a new subject, knowing there would be a nude model, vs. the relief and pleasure of having succeeded in doing the class, was a factor.
When I taught high school biology, we had a real human skeleton in the lab for study. It was from India, a female if I recall. Pat of the anatomy lesson was to discern male from female skeletal structure. The process they used to clean the bones is a bit grisly, using dermestid beetles.
I was banned from AOL twice for chicken-chickening chatrooms. I couldn't help myself..once I saw the reactions doing something so stupid evoked in people, I was hooked. Chicken-trolling. The Chickening. AOL was coming down hard on me in those days for goofiness like The Chickening. They threatened to ban me for good at the third strike. It was glorious while it lasted. ~:>