Pre-natal genetic testing, VR drones, and fracking nanoparticles were a few of the products featured in Y Combinator’s first Virtual Demo Day. They come from the YC Fellowship, a program designe
Things can get messy if you have sex on your period, so many couples avoid it. But The Flex Company wants to replace outdated pads and tampons with a sleek, disc-shaped blood blocker. Flex can be worn