The new (old?) materials zoo

NEW REFRACTORY MATERIALS FOR THE COPPER INDUSTRY

Wear of various basic refractory materials to substitute to currently used magnesia chrome bricks has been studied, measuring matte and slag penetration and dissolution, through different cup and rotary slag tests. High magnesia with and without impregnation, magnesia graphite, magnesia-alumina spinel with and without impregnation, olivine-magnesia and olivine magnesia- graphite bricks, as well...

Vitreous Substitutes: Old and New Materials in Vitreoretinal Surgery

Recent developments in vitreoretinal surgery have increased the need for suitable vitreous substitutes. A successful substitute should maintain all the physical and biochemical properties of the original vitreous, be easy to manipulate, and be long lasting. Substitutes can be gaseous or liquid, both of which have associated advantages and disadvantages related to their physical properties and u...

The Zoo Visitor: Who’s Who in the Zoo

New exotics in the double beta decay contributions zoo †

We discuss the potential of neutrinoless double beta decay for testing Lorentz invariance and the weak equivalence principle as well as contributions from dilaton exchange gravity in the neutrino sector. While neutrino oscillation bounds constrain the region of large mixing of the weak and gravitational eigenstates, we obtain new constraints on violations of Lorentz invariance and the equivalen...

Alfred, the Zoo Gorilla

1Diet.?This was a difficulty. The normal food for a gorilla is the tops of bamboo shoots and wild celery, which means an enormous amount of roughage : a male gorilla is said to pass 1 cwt. of faeces a day. The Zoo diet arranged for him was milk, special wholemeal bread, and bananas (he was having forty-eight a day at the outbreak of war), and when bananas were no longer obtainable they were rep...