{"version":1,"type":"rich","provider_name":"Libsyn","provider_url":"https:\/\/www.libsyn.com","height":90,"width":600,"title":"Liquid air batteries, dolphins saved by plastic bottles, and an empty weekend a month","description":"Dolphins fatally swim into fishing nets because the nylon is acoustically too similar to water for their echolocation to pick up. A researcher at Newcastle University wondered if attaching something that does produce an echo might change that. The dolphin-saving solution may surprise you. Ten solutions this week with Arielle and Karissa. Also in the episode: energy storage technologies that sound like science fiction but are getting serious investment, India\u2019s first domestically built hydrogen train, and the garden sign that looks like a win but means your plant is struggling to survive. Stay tuned til the end for a wonderful Emissary Shout-Out that will brighten your day! Transcript link: https:\/\/www.optimistdaily.com\/?p=1422684 If you have questions, comments, feedback, suggestions, or just want to say hi, send a message to: podcast@optimistdaily.com. Want to be part of the Optimism Movement? Become an  Emissary. Subscribe to our FREE Daily\/Weekly Newsletter and follow us on Instagram, X, and Blue Sky. The Optimist Daily is a project of the World Business Academy. Donate link:  https:\/\/www.optimistdaily.com\/donate-to-support-the-optimist-daily\/?lsc=41ef528d Theme and all original music by Marvin Lanes ","author_name":"The Optimist Daily's Weekly Roundup","author_url":"http:\/\/www.optimistdaily.com","html":"<iframe title=\"Libsyn Player\" style=\"border: none\" src=\"\/\/html5-player.libsyn.com\/embed\/episode\/id\/42263295\/height\/90\/theme\/custom\/thumbnail\/yes\/direction\/forward\/render-playlist\/no\/custom-color\/88AA3C\/\" height=\"90\" width=\"600\" scrolling=\"no\"  allowfullscreen webkitallowfullscreen mozallowfullscreen oallowfullscreen msallowfullscreen><\/iframe>","thumbnail_url":"https:\/\/assets.libsyn.com\/secure\/content\/204605830"}