A Hairy Test to Trace Recent Travel
Did you know that where you are from and where you have been can be traced through a single strand of your hair?
According to this study recently published in the Analytical and Bioanalytical Chemistry journal, a team of Spanish and British scientists have found a way to trace your travels by testing your hair by using a laser-ablation technique. This technique is able to detect variations in the sulphur isotopes of a single hair strand over time.
During the study, researchers collected hair samples from three volunteers, two of whom were permanent United Kingdom residents while the third had spent the …read more
