Everything you never wondered about those wooden castle-like playgrounds of Gen X and Millennials’ youths. Plus, how a nano-thin layer of gold could finally be the cure to the dreaded glasses fog of our COVID masking era.Sponsors:Shopify, Sign up for a free trial at shopify.com/coolRocket Money, Cancel your unnecessary subscriptions at RocketMoney.com/COOLLinks:If you remember this playground, your childhood was awesome (Hopes and Fears)The dangerous playgrounds of 1900s through vintage photographs (Rare Historical Photos)Playground Architect Insists On Principle Of 'User Design' (The Buffalo News)Playground Divides Adults in Westport (The New York Times)An Invisible Layer of Gold Could Be the Secret to Glasses That Never Fog Up (Gizmodo)A nano-thin layer of gold could prevent fogged-up glasses (Engadget)Jackson Bird on TwitterSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.