This unique, bulky, weird-looking gadget is actually very impressive. It is called Kokoro, which means “the heart of things” in Japanese, and it is a project created by Anaid Gomez Ortigoza, a student at NYU. This cool device actually changes your iPod playlist to match your current heart rate. Meaning that if your heart is beating furiously, you might get a heavy-hitting heavy-metal playlist. If its beating softly, you might get something calmer, such as jazz or contemporary. Via Engadget.