President Obama says he is leaving the US stronger.
Donald Trump has dismissed unfavourable reports on social media as fake news.
A new centrifuge has been made from cardboard. Show more
Discover 11,128,835 listings and 280,103 playable programmes from the BBC
President Obama says he is leaving the US stronger.
Donald Trump has dismissed unfavourable reports on social media as fake news.
A new centrifuge has been made from cardboard. Show more