Recycled PCs | IT For Charities
The following companies and NFP organisations are included on this page because they supply recycled and refurbished PCs. (NB: If you have been offered a donated PC then do also consider the pros and cons – read TechSoup’s “How to Accept (or Refuse!)
Rexroth Bosch Air Relief Valves 3D Manipulators Back Flow Prevention Valves A & D Services Ball Valves - Full Bore Ball Valves - Multi Ported A C Hydraulics
Sinkholes | British Geological Survey (BGS)
Sinkholes can occur where a thin covering of loose superficial material such as sand, clay or soil covers the soluble rocks beneath. In this setting, the soil can be washed into solutionally widened fissures below, leading to the development of a cavity within the overlying material.