A rainbow may be a wondrous sight but for most people it's also a fairly fleeting one.
After two Chinese Culture University (CCU) professors recorded what they claim is the longest-lasting rainbow in history on November 30, their department has launched a campaign to apply for recognition by Guinness World Records with the use of a "rainbow clock" to verify every second of the 9-hour-long rainbow's existence.
The natural marvel didn't catch the department wholly by surprise: There was a nearly-six hour rainbow the previous week.
The current world record is a rainbow that lasted for six hours in Yorkshire, England, according to the Guinness World Records.
Chou reportedly told BBC that the rainbow was rare, wonderful and a "gift from the sky".
The rainbow was recorded by a pair of atmospheric science professors, Chou Kun-hsuan and Liu Ching-huang, at the Chinese Culture University, located on Yang Ming Mountain in the outskirts of Taipei.
Rainbows, which are formed after sunlight is scattered after rainfall, typically last up to an hour, the BBC said. With the 10000 pictures taken by the professors and the ones taken by the students, Chou is confident that they can prove to Guinness easily that the rainbow lasted for nine hours.
The professors and department were ready to capture the rainbow because they had recorded a rainbow lasting about six hours the previous Monday, Prof Chou said. "But then it did something even more incredible; it went on to beat the previous record by another three hours!"
The university is now gathering its data and evidence to apply for the Guinness record. The combination of seasonal monsoons trapping moist air, lack of strong winds and partly cloudy sky allowed the rainbow to be visible for such a long time.
A record-breaking nine-hour rainbow appeared in the Taiwanese capital of Taipei, the media reported on Tuesday.