21.   They mapped the three-dimensional position of individual atoms in the spool-DNA complex by the technique of X-raying the molecules in crystalline form.

22.   When Dan Rugar first heard about an idea for a new microscope that could peer beneath the surface of molecules and pick out individual atoms, he was skeptical.

23.   With the development of nanotechnology, the building of machines out of individual atoms and molecules, Joy worries about artificial microbes that are better than their biological counterparts.

24.   Individual atoms boil off the sample and are accelerated through microwave fields.

25.   Individual atoms can be studied there with very great accuracy and their inner structure can be determined.