Newsner Stories on MSN1 个月
The small holes in your nail clippers have a smart use
But what about the small, mysterious hole at the end of most clippers? It’s a feature that often goes unnoticed, leading some ...
Business Insider7 年
Why airplanes have a hole in the tail
Most commercial jetliners have a small hole in the tail. Have you ever wondered what this hole is there for? Following is a transcript of the video. Most jetliners have a hole in the tail.