Researchers explored a colloidal crystal model to produce specific polymorphs, required for use in materials science and pharmaceuticals. Polymorphs are not mythical, chimeric beasts -- they are ...

Tar made from birch tree bark is commonly found at Neanderthal sites, and experiments show that it kills some bacteria that cause skin infections ...

Neanderthals may have used birch tar as more than just glue; it could have helped them ward off infection and even insect bites.

Silver futures allow trading large silver amounts with less cash via leverage. Risks include high volatility and potential large losses due to leverage. Silver ETFs and stocks are safer for most ...