Dralion reflects the dedication and hardwork of Cirque du Soleil. But to add even more hardwork the Chinese acrobats and circus preformers that have been working the majority of their life is CRAZY! =D
they're shape is probably designed to hold the weight. If you clasp your hands together and put an egg in between the lower parts of your palms, and squeeze, it's almost impossible to break the egg because of how the shape distributes the mass. Probably a similar thing with these light bulbs.
this was amazing i went to see dralion a week ago and am going again in a month. when they do the stack of 3 people, you should see how much the poor girl on the bottom is shaking. the other people there steady her so they dont all topple onto the bulbs.
they got to b special bulbs, theres no waay. maybe they are a type of clear plexi glass that would be strong enough to hold someone, and wouldnt heat up too fast either for thew amount of time this act is done in. ???