How to monitor urine in pools—by testing sweetness

Even though Olympic swimmers have admitted doing it, peeing in the pool is not a condoned practice. Urine contributes to the formation of compounds in pool water that can be harmful to people's health. Now scientists are ...

Fluorescence dyes from the pressure cooker

Perylene bisimides are organic pigments with interesting dye properties. While these compounds are red in the solid state, when dissolved, they generate bright yellowish-green solutions under UV irradiation. Aside from their ...

Going sustainable to rejuvenate the suburbs

Peripheral areas often face poverty, crime, waste, pollution and decay. A new trend, however, considers suburbs the best places to develop green initiatives and energy efficiency interventions. Many peripheral areas are becoming ...

The proliferation of Jupiter-like worlds

Our galaxy is home to a bewildering variety of Jupiter-like worlds: hot ones, cold ones, giant versions of our own giant, pint-sized pretenders only half as big around.

Cloudy days on exoplanets may hide atmospheric water

Water is a hot topic in the study of exoplanets, including "hot Jupiters," whose masses are similar to that of Jupiter, but which are much closer to their parent star than Jupiter is to the sun. They can reach a scorching ...

How to heal broken bonds, catalyst style

While popular catalysts called zeolites could help turn paper manufacturing waste and other biomass into fuel, the catalyst crumbles after just two days in hot water. And that's a problem because hot water is nearly ubiquitous ...

Hot tubs and swimming pools are not as clean as you may think

Whether water is hot in a tub or cold in a pool, it can bring immediate relief from stress or summer heat. But hot tubs and swimming pools are not always as clean as you might think, even when disinfected. In a new study ...

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