"Invisible Sunblock" is a hands-on activity exploring how nano-scale particles are used in mineral sunblocks to increase their transparency. Visitors compare nano and non-nano sunblocks to a visual representation of the effect of particle size on visibility.
This is a recording of a NISE Network online brown-bag conversation held in December 2014 about the International Year of Light. In 2013, the United Nations proclaimed 2015 as the International Year of Light (IYL). More than 100 organizations from more than 85 countries are participating in IYL. During this conversation we discussed scientific organizations that would make great partners for IYL events, shared light-related activities and videos developed by the NISE Network, and talked about the science behind some of those activities.
These 'Do It Yourself' Nano activities and experiments allow families to experience and learn about nanoscale science, engineering, and technology at home or on the go! They are are designed to be done in the comfort of your own home. Each activity includes lists of widely available, inexpensive materials, step-by-step instructions, and detailed explanations. Go ahead, give 'em a try!
"Exploring Products - Sunblock" is a hands-on activity comparing sunblock containing nanoparticles to ointment. Visitors learn how some sunblocks that rub in clear contain nanoparticles that block harmful rays from the sun.