Lisa Tauxe (Paleomagnetist, Scripps Institution of Oceanography, USA) measures the remanent magnetism imparted on sediments by the Earth’s magnetic field. Despite the delicate nature of these measurements, taking the sample sometimes requires brute force! Here Lisa prepares to extract a paleomagnetic cube sample by pounding a metal tool into the working half. (Credit: Elizabeth Griffith & IODP) [Photo ID: exp355_071]