Smartphone data from drivers could help spot when bridges need urgent repairs

Smartphones could be used to monitor the safety of bridges much more quickly and cheaply than currently possible, providing engineers with data they can use to fix the structures before they become dangerously unstable. Usually, bridges’ state of repair is monitored in one of two ways: either engineers visually inspect them for cracks and faults,…

Twitter may have lost more than a million users since Elon Musk took over

In the days after Elon Musk’s October 27 purchase of Twitter was confirmed by his tweet saying “the bird is freed,” many Twitter users have threatened to leave, unhappy about the new ownership. People always threaten to leave Twitter and then often fail to follow through—but new data suggests that a significant number of users…