BEYOND THE DAYLIGHT BARRIER: CHINA’S REVOLUTIONARY 1.2M LASER MEASUREMENT OF THE MOON
BEYOND THE DAYLIGHT BARRIER: CHINA’S REVOLUTIONARY 1.2M LASER MEASUREMENT OF THE MOON: 1. THE STRATEGIC LOCATION: KUNMING, YUNNAN PROVINCE This historic scientific feat was not achieved in a laboratory but at the YUNNAN OBSERVATORIES located in KUNMING, YUNNAN PROVINCE, Southwestern China. The site was strategically chosen due to its high altitude and atmospheric clarity, which are essential for minimizing laser beam scattering during the treacherous journey through Earth's atmosphere. 2. THE SCIENTIFIC BREAKTHROUGH: DAYLIGHT LUNAR LASER RANGING (LLR) For over half a century, LUNAR LASER RANGING (LLR) was strictly a nighttime operation. The overwhelming "noise" from solar radiation made it technically impossible to detect the faint return signals from the Moon during the day. However, Chinese scientists have shattered this limitation, achieving the world’s first successful DAYLIGHT MEASUREMENT with unprecedented accuracy. 3. THE ARSENAL: HIGH-PRECISION INSTRUMENTS T...