Sarah Zhang

US Author

Sarah Zhang

Extremely Bad Reasons Why Waterless Urinals Were Illegal

Extremely Bad Reasons Why Waterless Urinals Were Illegal

We take it for granted that urinals flush. With each pull of the lever, gallons of clean water come to whisk away a few ounces of pee. If you think about it, it’s actually pretty wasteful, and the current drought is convincing facilities to consider waterless urinals. But these waterless…

75 Million-Year-Old Blood Cells Found In Dinosaur Fossils 

75 Million-Year-Old Blood Cells Found In Dinosaur Fossils 

Dinosaurs fossils, we’ve all been taught, consist of bone — their flesh, skin, and organs having decayed long ago. But a new discovery might upend that assumption: Scientists have found evidence of blood cells with the protein intact in eight fossils which were not even particularly well-preserved.