Answer
It is called a Hot Shoe.
Explanation:
Every digital SLR camera has a connector on the top of the camera called a hot shoe: this is the most common and obvious way to connect an external flash unit to the camera.
Of you can see the photo here hope it helps!!
In Untitled (Siluetas Series, 1976), Ana Mendieta made a
human silhouette in the sand. She then added red pigment on it. The series of
photographs she captured represented the decaying of the human body as the
waves began to take away the sand until there was no trace of the silhouette
left.