24. Sounding Rocket: used for studying atmospheric phenomena, with two of Professor Michael C. Kelley's students Collection: Images from the Rare Book and Manuscript Collections Format: Image
25. Probe Station With Justin R. Rattner, '70 Collection: Images from the Rare Book and Manuscript Collections Format: Image
26. Rectifier Collection: Images from the Rare Book and Manuscript Collections Location: Carpenter Hall Format: Image
27. Electric Car, with Prof. Joe Rosson (?) and Two Students Collection: Images from the Rare Book and Manuscript Collections Format: Image
28. Induction Furnace, with Justin R. Rattner, '70 Collection: Images from the Rare Book and Manuscript Collections Format: Image
29. Early Probe Station Collection: Images from the Rare Book and Manuscript Collections Format: Image