BUFFALO, N.Y. – It looks like a Slinky suspended in motion. Yet this photonics advancement – called a metamaterial hyperlens – doesn’t climb down stairs. Instead, it improves our ability to see tiny ...

You know the Slinky, but have you ever wondered how it walks down stairs, or why it appears to hang in midair when dropped? Scientists have peered into these phenomena for decades, but now a Princeton ...