When sodium vapor street lamps were replaced by LEDs, soft yellow light was replaced by crisp white. But the change to purple was never supposed to happen.

Charleston residents are admittedly proud of their city, and want it to look as nice as possible. They also would like it to be more visible, not only for the ...

In this paper, a low-cost electronic ballast for high-pressure sodium vapor lamps is presented. The proposed ballast is a two-stage circuit that requires only o ...

CLITHERALL, MINN. - The outdoor security light in our farmyard shone all night. We couldn’t turn it off. It belonged to the power company and there was no switch. Atop a power pole, it automatically ...

Conventional mulch films are often plastic-based or made from non-renewable and toxic materials. In a recent Research article, a team from China introduced a novel biodegradable liquid mulch film ...

BBMP replaces sodium vapour lamps with LED lights to save energy and reduce electricity bills in Bengaluru.

Scientists have pioneered a new way to monitor sodium levels in the blood—without drawing a single drop. By combining terahertz radiation and optoacoustic detection, they created a non-invasive system ...

New chip merges quantum light factories with on-chip control, enabling real-time stabilization of photon generation across 12 sources.

Researchers find a “cool” way to mitigate background water signals and demonstrate non-invasive blood ion monitoring in living mice ...

Humidity, or the amount of water vapor in the air, directly impacts how light travels. On very humid nights, the air is full of water molecules. When the bright light from fireworks hits those ...

The quantum battery (QB) has been proposed as an alternative to the electrochemical energy storage devices we know so well.