Advertisement
When there is an archaeological find, earth has to be carefully removed to expose buried artefacts or building structures. Excluding nearby volcanic disasters, what causes a site to fill up with rubble and debris over time? Where does it come from?
We sweat to cool our bodies by evaporation, but when we wipe the sweat away 鈥� a natural reaction in humans 鈥� are we defeating that function and making ourselves hotter? Do we also hasten dehydration by making our bodies sweat more, to replace what we've wiped away? In other words, should we just leave the sweat to do its job?