File:Feet Clappers.jpg - Wikimedia Commons

File:Road Side Pedicurist.jpg - Wikimedia Commons

Category:Feet - Wikimedia Commons

TIL the main purpose of a clapperboard in film making is to synchronise picture and sound in post-production, and when out of sync it's called 'lip flap' : r/todayilearned

The Man Who Speaks Softly—and Commands a Big Cyber Army

File:Children foot.jpg - Wikimedia Commons

File:Sharpenhoe - geograph.org.uk - 545706.jpg - Wikipedia

Can you tell when a movie was recorded by film or video? - Quora

File:Silurus glanis Rio Ebro Spain 2.jpg - Wikimedia Commons

GEMC- Injuries of the Lower Extremity: Knee, Ankle and Foot- Resident Training