Irakli Loladze is a mathematician by training, but he was in a biology lab when he encountered the puzzle that would change his life. It was in 1998, and Loladze was studying for his Ph.D. at Arizona State University.
It’s not every day scientists say a new kind of renewable energy could satisfy the majority of our power needs, so when they do, it’s worth leaning in close. In a first-of-its-kind study, researchers have found that energy harvested from the evaporation of water in US lakes and reservoirs could power nearly 70 percent of the nation’s electricity demands, generating a whopping 325 gigawatts of electricity.
Physicists have searched for ripples in the fabric of spacetime for nearly 100 years, ever since Albert Einstein’s 1915 theory of relativity predicted they exist. These ripples, called gravitational waves, happen when a massive celestial object suddenly moves, like when a star explodes, or when two massive objects collide, like the merging of two black holes.
Nikola Tesla is considered one of the most innovative and mysterious men who ever lived. If Tesla hadn’t invented and researched everything he did in his time, our technology today would be considerably worse. but is there something more to Tesla?
Stretching across 9,400,000 square kilometers of northern Africa-a land area comparable to the entire United States-the Sahara is the largest hot desert in the world, an expanse of shifting sands where only the hardiest wildlife can eke out a living. But new satellite imagery of the Sahara has revealed that the desert wasn’t always such a bone-dry dead zone.