Zhihu Hot List
Latest recorded position: #5 on Sep 15, 2026, 12:00 AM CST.
Across 1 retained daily record, the best recorded rank was #5. From the first retained rank (#5) to the last (#5), this listing held the same rank.
If I slowly fly upward at one meter per second, can I escape Earth? Must I reach escape velocity? If speed stays constant, does engine power change with altitude?
我每秒一米慢慢飞，能脱离地球吗？非得达到第二宇宙速度才行吗？保持速度不变，发动机功率会随高度变化吗？
ThreadEast first recorded "If I slowly fly upward at one meter per second, can I escape Earth? Must I reach escape velocity? If speed stays constant, does engine power change with altitude?" on Sep 15, 2026, 12:00 AM CST. It has been observed on Zhihu Hot List, with less than one hour between the first and latest recorded appearances.
What the trend data tells us
The English title describes the topic of the source listing. Its appearance in a ranking measures attention within that platform; the ranking alone does not explain the cause of a spike or verify the underlying claim.
This stable URL remains available after a topic leaves a live ranking. Observation span is elapsed time between sightings, not continuous time on a chart. Platforms use different ranking and heat systems; their metrics are not added together.
Original evidence
Source listings
#5Source metric: 160 万热度
Original source Daily ranking timeline
Up to 180 recent daily records from retained observations and preserved archives. The best rank and last rank can differ within a day. Times use China Standard Time (UTC+8).
| Day | Platform | Best rank | Last rank | Observations |
|---|---|---|---|---|
| 2026-09-15 | Zhihu Hot List | #5 | #5 | 1 |