资讯

Interesting Engineering18 小时
50 Nazi helmets found at Breslau during the anniversary of city’s freedom
This find, made in May, serendipitously coincided with the 80th anniversary of the end of the Nazi occupation of Breslau in ...
Interesting Engineering20 小时
China unveils 2.47kW portable laser weapon that works in Arctic cold, Saharan desert
The laser beams enough power to disable drones and cut through several kinds of materials from over 0.62 miles (1 km) away.
Interesting Engineering21 小时
Inlaid gold patterns found on 1,100-year-old Japanese spear from sacred island stun experts
Crafted during the Yamato Dynasty, the triangular-tipped blade covered in decorations is now considered one of the finest ...