Why the US has sanctioned Putin's daughters

The White House has announced a wide new slate of sanctions on Russia that includes first-time individual sanctions on the two adult daughters of President Vladimir Putin in response to the ongoing......

'Powerful' future ahead for lithium-ion battery

We have developed ultra-fast means of telecommunication and swankiest of electronic devices. But no matter how high-tech these gadgets are, they still rely on the humble battery for sustenance. The......