Shaun Keaveny - Today we can all enjoy a Leap Second! Professor Brian Cox told us why... - 麻豆官网首页入口 Sounds
![](https://ichef.bbci.co.uk/images/ic/320x320/p02qy1wx.jpg)
Shaun Keaveny - Today we can all enjoy a Leap Second! Professor Brian Cox told us why... - 麻豆官网首页入口 Sounds
Today we can all enjoy a Leap Second! Professor Brian Cox told us why...
Brian explains to Shaun why we are all able to bask in an extra second on 30th June 2015.