Many researchers are working on new and intriguing renewable energy storage sources. Interesting approaches for gravity, compressed air, and thermal storage are under development. A few of these, each based on relatively simple mechanical engineering fundamentals, have captured my interest and I describe them in this post.
The demand for lithium is growing rapidly -- and the "Lithium Triangle" in the Andes Mountains encompass a significant source of this metal. Lithium-ion batteries are essential for powering electronics, electric vehicles, and for storing energy produced by the wind and sun. The future of lithium is truly “electrifying”!
Small salt ponds numbering in the thousands are arranged on steep mountain slopes near the city of Cusco, former capital of the Inca Empire, high in the Andes Mountains of Peru. Known as Maras, and originating from a saline spring, these salt ponds have been tended carefully since Inca times 500 years ago, and possibly for hundreds (or thousands?) of years before the Incas.
A birds-eye view of view the landscape as it unfolds is unique. For this reason, many travelers, and especially geologists, try to sit in window seats on airline flights. Unfortunately, many of us are not planning to travel on airplanes anytime soon...but we can admire photos!