Quantum computer; Ancient water; Stem cells; Dambusters

One of the world's most powerful, commercially available, "quantum" computers is to be installed at NASA's Ames research centre.Scientists have discovered the oldest fluid water system in the world, buried deep beneath Ontario, Canada.A technique known as somatic cell nuclear transfer, which involves transferring the nucleus of a donor cell into that of a female egg cell, has been successfully applied to humans cells.To mark the 70th anniversary of the Dambusters mission, Material World is taking a look at some of the spectacular, yet largely unknown engineering achievements of World War II.