ONE half–life of radium ago, the Romans were evacuating Britain ; one half–life of uranium ago, the Earth’s crust had not yet cooled and solidified. One half–life of radon from now, I will be giving the second of four “Introduction to Atomic Energy” lectures at the Dallas Makerspace. Meanwhile, the fuel crisis is hitting hard, somewhere unexpected if you are not familiar with conditions in the USA ; someone has actually proven my point that the recent Harvard studies claiming that nuclear power plants cause cancer would give similar results for universities ; and even the odious Marine LePen can occasionally say something cogent.