I saw this recently on USA TODAY – YouTuber creates world’s first retractable lightsaber that can cut through steel: https://www.usatoday.com/story/news/world/2022/01/26/guinness-worlds-first-retractable-lightsaber/9223814002/. Longer article.
Asha C. Gilbert USA TODAY January 26, 2022
A Russian YouTuber is living out a “Star Wars” dream after creating the world’s first retractable lightsaber.
Alex Burkan, behind the YouTube channel Alex Lab, was recognized by Guinness World Records for the over 3 foot plasma blade that reaches temperatures over 5,072 degrees Fahrenheit and can cut through steel, according to a news release.
Burkan told Guinness his main field of research was in hydrogen generation equipment and creating the saber was a daunting task.