User Enrollment: None Posted Notes:2
-HELPFUL:0
-NOT HELPFUL:0
-NEEDS MORE RATINGS:2 Posted Ratings:138
-HELPFUL:119
-SOMEWHAT HELPFUL:6
-NOT HELPFUL:13
Posted Notes
2024-12-14 18:19:21
Only satellites fly high enough to be illuminated by the sun outside the Earth's shadow in the middle of the night. [Link] NEEDS_MORE_RATINGS(4-1-5) Related notes[4]
2024-12-17 11:38:39
„ More than 90% of skin cancers are caused by sun exposure.“ Use sunscreen! [Link] NEEDS_MORE_RATINGS(0-0-4) Related notes[2]