We have to admit that grandparents would not be able to give Suggestions when we are in trouble with these new technologies or when we are in problems with specific characteristics of this generation.
Last year the UN's food and Agriculture Organisation said that food production would have to increase globally by 70% by 2050 to feed the world's surging population.
We've got to remove the heat using some kind of fluid whether it's water or gas and we've got to pass this fluid through a turbine, that turbine turning a generator and making electricity.
I have visited some of the newer supposedly "effective" schools, where children shout slogans in order to learn self-control or must stand behind their desk when they can't sit still.