Isotope analysis of limestone cave deposits indicates repeated humid periods in the Saharo-Arabian Desert over the past eight ...

There is a whole lot more limestone deposits just below the ground in many old mining areas in Perak, which can be tapped instead.

Mineral deposits in limestone caves show that the now arid interior of Saudi Arabia repeatedly experienced increased rainfall over the last eight million years. An international team of researchers ...

From lens focal lengths and fill-flash to portraits, macro or stunning landscapes there are techniques for everyone. Learn how to use metering, considering composition and shoot everything from ...