Foil (song) Foil (song) "Foil" is a song by American musician "Weird Al" Yankovic from his fourteenth studio album, "Mandatory Fun" (2014). The song is a parody of the 2013 single "Royals" by Lorde. The song begins as an ode to the multiple uses of aluminum foil for food storage, but takes a darker turn in its second verse, parodying conspiracy theories, the New World Order, and the Illuminati. The song's music video stars Yankovic as the host of a cooking program, and features cameo appearances from Patton Oswalt, Tom Lennon, and Robert Ben Garant. The song opens with Yankovic lamenting that
Foil (fluid mechanics) Foil (fluid mechanics) A foil is a solid object with a shape such that when placed in a moving fluid at a suitable angle of attack the lift (force generated perpendicular to the fluid flow) is substantially larger than the drag (force generated parallel to the fluid flow). If the fluid is a gas, the foil is called an airfoil or aerofoil, and if the fluid is water the foil is called a hydrofoil. A foil generates lift primarily as a result of its shape and angle of attack. When oriented at a suitable angle, the foil deflects the oncoming