Heavy water is heavy because the hydrogen in it weighs twice as much as ordinary hydrogen (it has a proton and a neutron in its nucleus, instead of just a proton).
Ordinary search techniques proved unsatisfactory, so McKee entered into a collaboration with Harold E.Edgerton, professor of electrical engineering at the Massachusetts Institute of Technology.
If the study of law is beginning to establish itself as part and parcel of a general education, its aims and methods should appeal directly to journalism educators.
Next year, the plan is to extend the scheme more widely, by recruiting Dutch GPs to offer it to people from lower-income groups who do not have such private health insurance.
Through her unadorned, everyday visual Angle, the director shows us ordinary real life in China. In its conciseness and depth, the film truly has the energy of genuine tragedy.