Hydrogen is attracting attention as a clean energy carrier because its use does not emit CO₂. However, hydrogen’s ...
A study of limescale buildup in an early bathing facility at Pompeii has revealed that the water was replaced only once per ...
The last time you scrubbed a streaky window or polished a porcelain appliance, you probably used a chemical called ammonia.
Our cleaning pro shares her favorite tricks to clean glass shower doors. Find out the best ways to prevent hard-water stains ...
In November, Withings released its long-awaited U-Scan: a home monitoring system for your urine. The gadget resembles an ...
A grilled cheese sandwich. That’s real comfort food! But is eating one every day going to reduce your risk of dementia?
Chalk is a fine-textured form of limestone. It is composed of several tiny fragments of the calcite shells or skeletons of ...
Healthy digestion depends on a delicate balance of fluid in the gut. At the heart of that balance are epithelial cells, which line the intestinal wall and control how salt and water move in and out of ...
Opinion

Vitamin D deficiency

During the 19th century, scientists found that the main constituents of different foods were carbohydrates, fats, proteins, minerals, and water.
A pearl does not begin as something precious. It begins as a problem. Inside an oyster, a tiny particle slips in and settles ...
Although constipation and diarrhea may seem like opposite problems, they both hinge on the same underlying issue: how much fluid moves into the gut. These common issues affect millions of people in ...