If you’ve been on a playground swing, you may intuitively know when to lean back to get it going higher – physicists have confirmed that perfectly timed leaning produces the most height
The physics of playground swings, mathematicians model sexual response – Physics World physicsworld.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from physicsworld.com Daily Mail and Mail on Sunday newspapers.