How To Develop Your Own Pinhole Camera Photographs

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=O4bf2IO3-Wg

Make your own developing solution with household liquids, make your own pinhole camera, and create completely DIY photographs. A perfect summer science activity. • Download step-by-step instructions here: http://bit.ly/1MIaFGe • Download the camera templates and get more information here: https://www.rigb.org/education/loreal... • Make your own photograph developing solution out of household liquids. You can use dried mint, coffee, or basil - anything with caffic acid, which converts the colourless silver ions in the photographic paper into dark silver to produce a negative image. • If using mint, make a strong mint tea by stirring 10g of dried mint leaves into 200ml of hot water. Leave to brew for 15min, then strain through a coffee filter into a new container. In another glass, measure out 200ml of cold water and add two 1000mg vitamin C tablets. Then gradually add 10g of bicarbonate of soda while stirring to help break down the bubbles. The bicarbonate helps the vitamin C dissolve and creates the alkaline conditions needed for the developer to work. • Mix the two solutions together and leave to rest. Make an acidic stop solution to halt the chemical reaction started by the developer. Just mix 5 ml of lemon juice with 200 ml of water. • For more information, and links to download the template and instructions, visit the L’Oreal Young Scientist Centre webpage: http://bit.ly/PinholeCamera_Ri • Thanks to Dr Sean Thurston for creating the solutions. • Subscribe for regular science videos: http://bit.ly/RiSubscRibe • The Ri is on Twitter: / ri_science • and Facebook: / royalinstitution • and Tumblr: / ri-science • Our editorial policy: http://www.rigb.org/home/editorial-po... • Subscribe for the latest science videos: http://bit.ly/RiNewsletter

#############################

New on site