Show Atoms Atoms Take Tako Journeys Atoms even the heavy atoms of lead lend are wanderers Prof J. J G. G von yon Hevesy of or the University of ot FreIburg Freiburg Freiburg Frei FreI- burg In Germany has been Investigating tl Ung their heIr properties s. s Lead atoms ar are con constantly In m motion tIon even evenIn evenIn In solid solf metal he believes eyes In an au alloy 1 oy of ot lead and gold at a n temperature tempera tempera- ture half again as ns high as ns that of boiling water the time atoms wander through a space of ofa a hundredth of ot a cubic Inch In a da day When there Is la nothing but hut lead In the lump however however however how how- ever moving about Is not nearly so easy In pure lead an atom can mIgrate migrate migrate mi mi- grate In one one day through a n space of ot otone one to two ten of ot ota a a cubic Inch |