Samsung announced the Infinity Flex, a phone that folds out to become a wider touch screen, at a conference in San Francisco.
The foldable Android phone flips open at the side like a book to become a tablet. Commentators said the new development could bring the “wow factor” back to technology.
Cape Town university researcher Suzanne Lambert has created a building material made from human urine, sand and bacteria. The bricks harden at room temperature, in a chemical reaction similar to the way seashells are formed.
Lambert said she hopes her microbial carbonate precipitation method could be a sustainable alternative to traditional bricks, which have to be fired at temperatures of 1,000 degrees Celsius.