Anemometer use is constructed from a ping-pong ball attached to a string. When the wind blows horizontally, it presses on and moves the ball; because ping-pong balls are very lightweight, they move easily in light winds. Measuring the angle between the string-ball apparatus and the vertical gives an estimate of the wind speed. This type of anemometer is mostly used for middle-school level instruction, which most students make on their own, but a similar device was also flown on Phoenix Mars Lander. The first designs of anemometers that measure the pressure were divided into plate and tube classes. These are the
What Difference Does It Make? of the Smiths'. The character Ray Smith in the Jack Kerouac novel "The Dharma Bums" repeatedly says "What difference does it make?" as well as "Pretty girls make graves", the title of another track featured on "The Smiths". The single cover is a photograph of Terence Stamp, taken on the set of the film "The Collector". Originally Stamp denied permission for the still to be used, and some pressings featured Morrissey in a re-enacted scene. In the re-enactment, Morrissey is holding a glass of milk, as opposed to a chloroform pad in the original. However, Stamp later changed his mind,