Baidu Hot Search
Latest recorded position: #38 on Aug 14, 2026, 8:30 AM CST.
There are not enough retained observations to calculate a rank change.
In the summer without air conditioning, what did the ancients rely on to cool down?
没有空调的夏天 古人靠什么降温
ThreadEast first recorded "In the summer without air conditioning, what did the ancients rely on to cool down?" on Aug 14, 2026, 8:30 AM CST. It has been observed on Baidu Hot Search, 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
#38Source metric: 4366247
Original source