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Cruise Day 24 Speed 0 knots (kts) Course N/A Location Makarov Basin, approx. 145nm S. of the North Pole Depth 3948 m ## GO DEEPER DISCUSSION: (see previous journal for the questions.) The gray areas adjacent to the coastlines on the map are less than 300 meters deep, so no

Cruise Day 23 Speed 6 knots (kts) Course 355° (N) Location Makarov Basin, approx. 164nm S. of the North Pole Depth 3994 m ## GO DEEPER DISCUSSION: (see previous journal for the questions.) Riddle answer: Ice ## TODAY’S JOURNAL: We are still chugging north, but going a little

Cruise Day 21 Speed 4 knots (kts) Course 32° (NNE) Location Makarov Basin, approx. 313nm S. of the North Pole Depth 3248 m ## GO DEEPER DISCUSSION: (see previous journal for the questions.) The Metric System employs consistent prefixes for modifying units. Once you’ve learned

Cruise Day 22 Speed 3 knots (kts) Course 358° (N) Location Makarov Basin, approx. 210nm S. of the North Pole Depth 3802 m ## GO DEEPER DISCUSSION: (see previous journal for the questions.) To expand basic Metric System units, the following prefixes are used: x10 (Ten): deca-

Cruise Day 20 Speed 1 knots (kts) (on station) Course 252° (WSW) Location Makarov Basin, approx. 380nm S. of the North Pole Depth 3035 m ## GO DEEPER DISCUSSION: (see previous journal for the questions.) One of the biggest challenges of using satellite imagery to predict ice

Cruise Day 19 Speed 0 knots (kts) (on station) Course n/a Location Makarov Basin, approx. 375nm S. of the North Pole (we are now closer to the pole than to the nearest land, Henrietta Island.) Depth 2853 m ## GO DEEPER DISCUSSION: (see previous journal for the questions.) The

Cruise Day 18 Speed 5 knots (kts) Course 2° (N) Location Makarov Basin, approx. 435nm NNE of Henrietta Island, Russia Depth 2390 m ## GO DEEPER DISCUSSION: (see previous journal for the questions.) Hoarfrost crystals such as the ones in yesterday’s photograph tend to grow on

Cruise Day 17 Speed 0 knots (kts) (on station) Course n/a Location Mendelev Rise, approx. 425nm NE of Jeannette Island, Russia Depth 2176 m ## GO DEEPER DISCUSSION: (see previous journal for the questions.) Some instruments, like the PAR sensor, need an unobstructed view of the

Cruise Day 16 Speed 10 knots (kts) Course n/a Location Mendelev Rise, approx. 380nm NE of Jeannette Island, Russia Depth 2178 m ## GO DEEPER DISCUSSION: (see previous journal for the questions.) Although it belongs to Russia, Jeannette Island was discovered on an 1881 US Arctic

Cruise Day 15 Speed 0 knot (kts) (on station) Course n/a Location Mendeleev Rise, approx. 375nm NE of Jeannette Island, Russia Depth 2042 m ## GO DEEPER DISCUSSION: (see previous journal for the questions.) Riddle Answer: The Ocean ## TODAY’S JOURNAL: We’ve made it farther