Hypochlorous acid is safe enough to spray in your eyes yet more effective than bleach. Why isn’t it everywhere?

If US regulations on sulphur dioxide are relaxed, environmental monitoring professionals may need to consider how it will be prevented in this absence.  By Jed Thomas For decades, acid ...

When seawater penetrates concrete in road tunnels, a biofilm is formed that breaks down the concrete. This can lead to high costs and the risk of damage if stone and concrete drop from the tunnel roof ...

Sprayed concrete has been used in road tunnels on a larger scale since the 1990s, and since then, researchers have been able to see this fouling of biofilm. Despite this, there are currently very few ...

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Highlights:Meridian drills into a VMS pile hosting massive to semi-massive Cu-Au-Zn & Ag sulphides on the western edge of Santa Helena:CD-651: 33.4m @ 2.0g/t AuEq (1.4% CuEq) from 151.0m;Including:13.

Highlights: Meridian drills into a VMS pile hosting massive to semi-massive Cu-Au-Zn & Ag sulphides on the western edge of Santa Helena: ...