i.ytimg.com/vi/NkZ9WIlkhdo/maxresdefault.jpg

Researchers at the UW have developed a new blood-clotting test that uses a single drop of blood and a smartphone vibration motor and camera.

All about Thumbnail Images as ytimg maxresdefault especially in Search

Smartphony brzy změří i srážlivost krve. Bude stačit jedna kapka, držák a fotoaparát telefonu – MobilMania.cz

get-thumbnail option gives url to broken images. · Issue #402 · yt-dlp/yt-dlp · GitHub

Blood clot testing using smartphones

thumbnails extractor

Phone app can help detect blood's ability to clot - Technology Org

All about Thumbnail Images as ytimg maxresdefault especially in Search