crashbullet (18)in #news • 6 years agoNew solar sailing technology for NASAResearchers is taking solar sailing to the next level with advanced photonic materials. This new class of materials…crashbullet (18)in #life • 7 years agoHow to stop eating sweetsSweets are a source of energy, and love for them is determined by nature. Ancestors of modern man had to run for food…