Necker Island (British Virgin Islands) would survive their castaway adventure for at least three weeks, but as McCullin later recounted, "because of our gathering weakness ... out of temper, and out of water, we hoisted the red flag and were taken off in the early hours of the fifteenth day". According to McCullin, there was nothing idyllic about the desert island: "The mosquitos and other insects were more venomous and persistent than any I had encountered in Vietnam or the Congo." Richard Branson's "Extreme Tech Challenge" has been hosted annually at Necker Island since 2015. Described as one of the largest technology competitions in the
Albertine Necker de Saussure French chemists that she visited included Antoine Lavoisier; Antoine François, comte de Fourcroy; and Claude Louis Berthollet. In a letter to her father, Albertine described experiments she performed in their laboratories. Albertine Necker de Saussure's literary work began relatively late in life, after her children were grown. Her principal work, "l'Education Progressive" or " Etude du Cours de la Vie" (1828), was a long and influential study of educational theory and the education of women. The work is divided into two parts, originally in three volumes which were published successively. In the first two volumes, in which she examines general