Are screensavers art? If they are, one of the most iconic Windows screensavers, 3D Pipes, only existed because of an internal Windows contest to show off OpenGL support to Windows NT. Raymond Chen, a longtime software developer at Microsoft, chronicles the internal stories of Microsoft from his blog, The Old New Thing. Chen’s blogs and interviews have covered “the USB Cart of Death,” the reason behind the codename of 64-bit Windows (Sundown), the confidential coffee maker, and the ASCII cats hidden in Windows 8. Chen’s blogs read like stories you’d recount to coworkers a decade later. Chen’s l…