Two of the US Cabinet members -- Education Secretary Betsy DeVos and Transport Secretary Elaine Chao -- have resigned over the storming of the Capitol by Trump supporters. US Capitol Police Chief Steven Sund has also announced that he would resign this month after he faced criticism for failing to prevent Trump supporters from storming the building.
What engineering problems make it hard to use 17th century physics to move lots of people quickly across serious distances? Devangshu Datta has the answers.
Incoming US President Donald Trump has assembled a core team that is -- not surprisingly -- overwhelmingly white and male.
Dina Asher-Smith seized her golden opportunity to win the World Championship 200 metres on Wednesday and become the first British woman to claim a global sprint title.
