Now fold the fabric over and look again through two layers. Youa#39;ll see moirAc patterns. Slide the fabric around and watch the patterns dance and change. Look through two layers of window screen. Observe the moirAc patterns as you slide oneanbsp;...
|Title||:||The Exploratorium Science Snackbook|
|Author||:||Exploratorium Teacher Institute|
|Publisher||:||John Wiley & Sons - 2009-10-13|