| The non-divine, but human-made Eucharistic elements of bread and wine can affect only the material body. |
| Research on how human-made noise discombobulates birds has focused on how adults adjust their songs or on what species will nest at all amid the din. |
| Human-made fluid spitters, such as the nozzles in ink-jet printers, don't have refinements such as variable-size openings, says Alberto Vailati of the University of Milan. |
| Chimney swifts originally nested and roosted in hollow trees, but today they live almost exclusively in human-made structures. |
| Scientists in Europe recently created the first human-made antiatom, an atom with all the usual electrical charges reversed. |
| In some caves there are horizontal passages where cavers have found human-made tools, handwoven cedar baskets, ancient drawings on the walls, and many, many animal bones. |
