Por que isso não é patenteado? Um antigo técnico em eletrônica me ensinou esse segredo

Super ar-condicionado caseiro que congela até pinguins! É incrível

I never thought cutting a glass bottle with a rubber band would be so easy - Amazing

Mix CEMENT with EPOXY RESIN and turn the impossible into a MILLION-DOLLAR idea!

Mix CEMENT with DETERGENT and see something most people would never believe is possible!

Mix CEMENT with SYNTHETIC ENAMEL and see the secret that can be worth gold in construction!