The origin of yellow ribbons and the truth about hand sanitizers
It started with the Iran hostages back in 1980 and now everyone has a ribbon for something. But where did those ribbons first come from? What sparked the symbol? The Library of Congress has an interesting page on the genesis of ribbons.
Hand sanitizers and those dispensers are everywhere these days. But how effective are alcohol gels at preventing the spread of germs and viruses? Surprisingly, not as great as you’d expect. Some brands actually seem to promote the growth of certain bacteria. The solution? Good old soap and water seem to be as if not more effective than some gels.