News tagged with energy

The bottom line on sustainability

Climate change, pollution, dwindling natural resources, diminishing fresh water supplies… the list of problems we face as a species in the twenty-first century continues to grow. Many of the environmental problems are sadly ...

Sep 25, 2014
3.5 / 5 (8) 77

What is the geometry of the universe?

One of the big questions in cosmology regards the shape of the universe. "Shape" in this case is not the distribution of galaxies, but rather the shape of space and time itself. In general relativity, space ...

Sep 24, 2014
4.4 / 5 (50) 38