Tag: chemistry

Blasting coffee grounds with ultrasonic waves creates a 60-second cold brew

As the weather continues to warm, many coffee drinkers currently are making their annual transition over to iced coffee. But for those with more sensitive stomachs, cold brew’s comparatively low acidity makes it their preferred year-round caffeine fix. This smoother, creamier, and sweeter brew comes from allowing grounds to steep in refrigerated water for upwards […]

Jellyfish-inspired glowing dye can glom onto fingerprints at crime scenes

Imagine a crime scene. Chances are, you’re also imagining someone dusting for fingerprints. Despite recent debates of whether fingerprint evidence is accurate and reliable, it can still prove extremely useful in certain situations, such as narrowing down potential suspect lists. Unfortunately, this technique often employs toxic powders, including environmentally harmful petrochemicals that can damage DNA […]

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