vt.physics on Instagram: "Why Don't Surgery Lights Make Shadows? Surgical lights are designed to minimize or eliminate shadows to ensure a clear, consistent view of the surgical site. This is achieved through several features. Firstly, they use multiple light sources arranged in a circular or multi-headed pattern, so if one beam is blocked by a surgeon’s hand or instrument, light from another angle fills in the shadow. Secondly, they produce a highly focused, parallel, and bright beam, which red

Jose Antonio Lucas on Instagram: "In the cathedral of shadows. The black cat keeps its silent watch. Glowing eyes guarding forgotten spells. And whispers of the night. . . . . . . . #WitchCat #DarkFantasy #Mystical #Magic #HalloweenVibes #FantasyArt #DarkArt #WitchAesthetic #SpookySeason"