mouse
15:09Mouse Cursor History (and why I made my own)
3M views • 8 years ago
Posy
Posy gives a short history of the computer mouse cursor, from early straight pointers to the tilted arrow, comparing Apple and Windows designs. He then explains why he designed his own cursor set and offers it as a free download.
21:03Inadvertant intravenous injections
507K views • 5 years ago
Dr. John Campbell
Dr. John Campbell reviews a mouse study on accidental intravenous injection of an mRNA COVID-19 vaccine and its potential to cause myopericarditis. He walks through the methods and findings and discusses the aspiration technique.