Home News Can light bend around edges? By Tech & Learning published 15 February 2010 (opens in new tab) (opens in new tab) (opens in new tab) (opens in new tab) Demonstrate diffraction using a candle or a small bright flashlight bulb and a slit made with two pencils. Tech & Learning NewsletterTools and ideas to transform education. Sign up below.* To subscribe, you must consent to Future’s privacy policy. Tech & LearningSocial Links Navigation Tags News