Internet forums are fertile ground for budding mathemeticians to offer up solutions.
Nick O'Malley Video evidence from mobile phones, cars and security cameras offer undisputed accounts, as another officer is charged.
A motorist has filmed the terrifying moment a powerful tornado crossed directly in front of his vehicle, almost lifting it from the road, as he tried to shelter under a bridge/overpass in the US.
Josephine Tovey Comedian and activist Russell Brand has made an impassioned plea for clemency for the two Australians facing the death penalty in Indonesia, the latest high profile international figure to join the campaign to save their lives.
The Herald's picture editors showcase the best images from around the globe.
Andrew Darby Japan’s plan to revive its outlawed Antarctic whaling has been dealt a blow with independent experts finding it failed to justify a new hunt.
Jewel Topsfield An Indonesian law reform organisation has called for a moratorium on executions after a study of 42 death sentences handed down between 2002 and 2013.
Ruth Pollard Palestinian children - some as young as 11 - are performing "gruelling and hazardous" work on farms run by Israeli settlements.
Philip Wen Charges raise prospect of diplomatic confrontation with Beijing similar to that with Jakarta over Bali nine duo.
Megan Levy Hillary Clinton's announcement that she will enter the 2016 race for the White House came in a two-minute video released in a digital blitz on social media, in which she told the US public she wanted to be their "champion".
Waratahs and Cootamundra to honour Nicholas Tooth in clash.