By Bobby Mercer
There is not want for dear, high-tech lab gear to accomplish physics experiments-you most likely have all you would like at your residence junk drawer. flip a plastic cup right into a pinhole digital camera utilizing waxed paper, a rubber band, and a thumbtack. construct a swinging wave computer utilizing a chain of washers suspended on strings from a yardstick. Use a cork, string, and water-filled plastic bottle to create an easy accelerometer. Or build your personal planetarium from an empty potato chip canister, building paper, scissors, and a pin. Physics instructor Bobby Mercer presents readers with greater than 50 nice hands-on experiments that may be played for simply pennies . . . or much less. every one venture has a fabrics record, specified step by step directions with illustrations, and a quick rationalization of the clinical precept being verified. Junk Drawer Physics additionally contains sidebars of interesting physics evidence: do you know the Eiffel Tower is six inches taller in summer season than in wintry weather simply because its metal constitution expands within the warmth? Educators and oldsters will locate this identify a convenient source to coach little ones approximately physics subject matters that come with magnetism, electrical energy, strength, movement, mild, power, sound, and extra, and feature enjoyable while. Bobby Mercer has been a highschool physics instructor for over 20 years. he's the writer of The Flying laptop e-book, The Racecar publication, and wreck It! Crash It! release It! and lives along with his relatives outdoor of Asheville, North Carolina.