มีคนบอกว่าจีนไม่เคยสร้างเวทย์มนต์ใหม่มีแต่ลอกเวทย์ของฝรั่ง
ลองดูอันนี้
https://www.scmp.com/news/china/science/article/3186095/chinese-scientists-unveil-high-powered-laser-can-write-air
Chinese scientists have shown off a laser that can create ghostly Chinese characters out of thin air.
Lasers have already been used to create a range of optical illusions, but previously they needed dust or clouds as a medium
.But the researchers behind the new device say it can draw patterns anywhere by using ultra-short laser pulses to strip the electrons off air molecules and turn them into light, creating a ghostly image floating in mid air.
นักวิทยาศาสตร์จีนสร้างปากกาเลเซอร์ที่เขียนอักษรลอยกลางอากาศ
มีคนบอกว่าจีนไม่เคยสร้างเวทย์มนต์ใหม่มีแต่ลอกเวทย์ของฝรั่ง
ลองดูอันนี้
https://www.scmp.com/news/china/science/article/3186095/chinese-scientists-unveil-high-powered-laser-can-write-air
Chinese scientists have shown off a laser that can create ghostly Chinese characters out of thin air.
Lasers have already been used to create a range of optical illusions, but previously they needed dust or clouds as a medium
.But the researchers behind the new device say it can draw patterns anywhere by using ultra-short laser pulses to strip the electrons off air molecules and turn them into light, creating a ghostly image floating in mid air.