Serruchos
https://www.youtube.com/watch?v=WVT1Ftagkc0
Espejos
https://www.youtube.com/watch?v=Kg8r-mnpZ3E
Cilindros Hidráulicos
https://www.youtube.com/watch?v=D3k8RMQtk9k
Imanes
https://www.youtube.com/watch?v=5-7ZgE5fbuQ
Baterías de Litio
Cemento
Mangueras
https://www.youtube.com/watch?v=nTxhXusNL-w
Titanio
https://www.youtube.com/watch?v=be1xaQZA1oE