What wind speed does it take to tip a lorry?
b'Marco got in touch after his truck tipped over on the motorway. He wanted to know what speed the wind would need to be blowing at to cause this, so he knew when to stop driving in the future. Rosalind Davies spoke to Zephyr Penoyre, a PhD student at Columbia State University, to find out the answer. Like this podcast? Please help us by supporting the Naked Scientists'