As I said yesterday, this area of the exhibition is forbidden to children unless accompanied by an adult. Whether it's because of the subject matter of the sculptures or because an unaccompanied child and fire could be dangerous, I don't know.
This piece is called Matter into Light: the Discovery of Fire (2011). It's made of hand-treated cobalt-plated bronze, concrete, stainless steel, cement board, ceramic and bioethanol liquid. This is one of a series of burning sculptures which thanks to new technology, can burn with real fire inside the museum without a flue.