Speculative wormhole echoes could revolutionize astrophysics

The scientific collaborations LIGO and Virgo have detected gravitational waves from the fusion of two black holes, inaugurating a new era in the study of the cosmos. But what if those ripples of space-time were not produced ...

Las Vegas hotels bet on technology to attract, dazzle guests

It takes just minutes for a room service attendant to respond to a text message asking for a soda, bringing the Diet Coke on a tray with a glass of ice and lime wedges, no need for the modern hassle of placing a phone call.

Rainforest plant developed sonar dish to attract pollinating bats

The researchers discovered that a rainforest vine, pollinated by bats, has evolved dish-shaped leaves with such conspicuous echoes that nectar-feeding bats can find its flowers twice as fast by echolocation. The study is ...

Drones can determine the shape of a room by listening

Imagine a loudspeaker is placed in a room with a few microphones. When the loudspeaker emits a sound impulse, the microphones receive several delayed responses as the sound reverberates from each wall in the room. These first-order ...

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