BBC News (World)@BBCWorld
Magnetic slime could retrieve accidentally swallowed objects
https://bbc.in/3uSGwSw
https://video.twimg.com/amplify_video/1510588178620637184/vid/720x1280/uvxxMGI56VWwKU8N.mp4
https://twitter.com/BBCWorld/status/1510588438931816452
（ツイート内のリンクは切れているので記事はこちらからどうぞ）
Scientists have developed a magnetic slime robot!
https://www.bbc.co.uk/newsround/60955912