Engineers critically study mechanical properties of metals for many purposes including their area of applications. Detailed out in this article are the mechanical and technological properties of metals. These properties are important and play good part during metals applications into many areas for good use and in production processes. Some of the factors that affect the mechanical and technological properties of metals were also detailed out. A big feature of the conference was the partnering with the Poor People’s Campaign of Reverend William Barber Jr. (which arose out of the Moral Monday actions in North Carolina). As in the Green New Deal, the sessions considered in depth the connections between climate protection and social justice. But for that dawn to come we must accept the truth that in our country, a country where everyone says that what they are doing is for the poor, a country where the law gives everyone the right to gather and to speak, in reality the poor have to make their choices from no choice. Business and politics, the left and the right are all united in their demand for our silence. We know the truth of what has been decided about our place. We will continue to be assaulted by the police on the way to an interview on a radio station, we will continue to be assaulted by the police at the door of the television talk show to which we have been invited, we will continue to have our marches stopped, organisations and people that have never supported us will continue to misuse our struggle to make themselves look good, the NGOs that want us to be silent while they speak for us will continue to call security if we try to bring our university to their university like they did on 3 December, the police will continue to shoot at us and even kill us like they did at the Siyanda road blockade on 4 December. Struggle is hard. Having your life destroyed by forced removal to a formal jondolo far outside the city is harder. The UN predicts there will be two billion more people in the world by 2050, creating a demand for 70 per cent more food. By that time, 80 per cent of us will be living in cities, and most food we eat in urban areas is brought in. So farms moored on the sea or inland lakes close to cities would certainly reduce food miles. But how would they work? A new design by architect Javier Ponce of Forward Thinking Architecture shows a 24m-tall, three-tiered structure with solar panels on top to provide energy. The middle tier grows a variety of veg over an area of 51,000m2, using not soil but nutrients in liquid. These nutrients and plant matter would drop into the bottom layer to feed fish, which are farmed in an enclosed space.