# Ep 12 | QFL: How much blood do we have & blood color optics! Page: https://stenobird.com/podcast/what-s-happening-inside-me-7235354/ep-12-qfl-how-much-blood-do-we-have-blood-color-optics Text version: https://stenobird.com/podcast/what-s-happening-inside-me-7235354/ep-12-qfl-how-much-blood-do-we-have-blood-color-optics.md Podcast: [What’s Happening Inside Me?](https://stenobird.com/podcast/what-s-happening-inside-me-7235354) Published: 2025-07-04T12:15:50+00:00 Episode link: https://www.spreaker.com/episode/ep-12-qfl-how-much-blood-do-we-have-blood-color-optics--66859620 Audio file: https://dts.podtrac.com/redirect.mp3/api.spreaker.com/download/episode/66859620/s2e4_qfl_blood_and_color_optics_sep25.mp3 Processing state: not_requested JSON: https://stenobird.com/v1/public/podcasts/what-s-happening-inside-me-7235354/episodes/ep-12-qfl-how-much-blood-do-we-have-blood-color-optics Duration seconds: 599 ## Resource Got questions? We’ve got answers! In this special “Questions from Listeners” episode, Sloane and Audra tackle some curious questions sent in by real kids just like you! 🩸 How much blood is actually in our bodies? 🟥 Why is blood red? 🔵 And wait… if blood is red, why do veins look blue?? We’ll talk about the science of blood, a little light magic (aka optics!), and why your skin plays a trick on your eyes when you look at your veins. As always, it’s silly, smart, and packed with kid-friendly facts! Perfect for curious kids ages 4–12 💡 Fun science 😂 Kid questions ❤️ New here? Don’t forget to check out our free printables at WHIMpodcast.com ! 💡 Enjoying What’s Happening Inside Me? If you loved this episode, please share it with a friend or leave us a review—it helps more curious kids and families discover the show! 🌟 👉 Visit us at WHIMpodcast.com to: Send in your own question for a future episode Grab the most recent partner pages for free Stay up to date on new releases Thanks for listening, learning, and exploring what’s happening inside YOU! 🩺✨ ## Actions - request_transcript: `POST https://stenobird.com/v1/public/podcasts/what-s-happening-inside-me-7235354/episodes/ep-12-qfl-how-much-blood-do-we-have-blood-color-optics/transcription-requests` — Idempotently request low-priority transcript generation for this episode. - read_markdown: `GET https://stenobird.com/podcast/what-s-happening-inside-me-7235354/ep-12-qfl-how-much-blood-do-we-have-blood-color-optics.md` — Read the agent-friendly Markdown representation of this episode resource. A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed. ## Transcript Full transcripts are not published on public pages unless there is a clear rights basis.