---

EP-95 ON THE MOON WITH APOLLO 16

---

FIGURE 28.-Passive Seismometer. The instrument is covered with a blanket of superinsulation to protect it from the extreme variations of temperature on the Moon (-400° to +200°F). The principle of operation is shown in figure 29. The level, used on the Moon in exactly the same way as on the Earth, indicates whether the instrument is level. The Sun compass indicates direction.

---

- Back -

---