Cryocooler cools an accelerator cavity

Particle accelerators are made of structures called cavities, which impart energy to the particle beam, kicking it forward. One type of cavity is the superconducting radio-frequency, or SRF, cavity. Usually made of niobium, ...

Protecting marine areas may have insidious political effects

Zones of ocean known as Marine Protected Areas (MPAs) are all the rage. They have no single or agreed definition, but essentially they are areas of sea in which human activity is restricted or prohibited in order to preserve ...

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