Wow in the World: WeWow on the Weekend

Podcast: Wow in the World
Host: Tinkercast
Episode: WeWow on the Weekend
Date: March 1, 2026

Episode Overview

In this playful and energetic weekend episode, Dennis and his co-host Reggie whisk listeners through a mix of silly morning routines, a failed attempt at inventing a brunch restaurant, and a relisten to a classic episode of Wow in the World about 3D printing. Bursting with humor and curiosity, the show manages to sneak in real science about 3D printing technology, medical advances, and even space exploration—all in a style perfect for inquisitive kids and their grownups.

Key Discussion Points & Insights

1. Dennis and Reggie’s Weekend Routine

• Dennis describes his lazy Sunday ritual, which includes snoozing his alarm multiple times, reading gossip magazines, tending to plants, and eating cereal straight from the box ([01:08]).
• Reggie expresses love for Sunday brunch, prompting a comedic attempt at creating a brunch restaurant ([02:43]).

2. The Brunchy Little Restaurant Experiment

• Dennis and Reggie try to improvise a brunch restaurant, using cereal dust as “flour” and juice as “liquid” to make pancakes. The results are, as Dennis puts it, “really bad” ([04:56]).
• In a memorable moment, Dennis suggests, “No refunds,” before closing the restaurant and pivoting to the idea of a “podcast theater” instead of a food place ([04:56]).

3. Inside Tinkercast Studios: Classic ‘Wow in the World’—3D Printing the Future

Introduction to 3D Printing

• Mindy whimsically tries to 3D print pancakes—by stuffing actual pancake ingredients into her paper printer, with expected chaos:
  • “I just put some eggs in the ink cartridge here, and then the flour I just shove in here...” – Mindy ([10:48])
• Guy Raz explains what’s actually happening with real 3D printers:
  • “A 3D printer is a machine that prints out very specific three dimensional objects...layer by layer.” – Guy Raz ([12:35])

How 3D Printing Works

• Guy Raz details how 3D printers use computer models sliced into hundreds or thousands of layers, which are then laid down one at a time to build complex items ([13:10]).

3D Printing and Medicine

• The conversation turns to biomedical advances:
  • “You need a small plastic fork, a fidget spinner, and a human ear.” – Guy Raz ([15:15])
• Guy Raz teaches that “biofabrication” means using 3D printers to create living tissue, like ears for people with microtia, using stem cells and scaffolds ([15:47]-[16:27]).
• They explain stem cells:
  • “Stem cells are the cells in your body that can basically transform and then grow into any other cell in your body.” – Mindy ([16:33])
  • This lets scientists grow ears and other body parts for medical needs.

Printing on Demand and Sustainability

• The hosts imagine a future where people can print objects whenever they need them, reducing pollution, packaging, and waste ([21:16]-[21:38]):
  • “One where nothing is ever out of stock and one with a lot less waste and packaging and pollution.” – Mindy ([21:33])

3D Printing in Space and…on Mars!

• 3D printing is used on the International Space Station for tools, and NASA hopes to send a robot to Mars to 3D print buildings out of Martian rock and dust for future astronauts ([22:30]-[24:49]).
• Mindy jokes about swapping Martian dust for flour:
  • “Just hear me out, Guy Raz. One enormous 3D printed pancake.” ([25:18])

Memorable Quotes & Moments

• Dennis: “Whatever. Wee wow on the weekend. Yeah, wee wow on the weekend.” ([01:08])
• Dennis (about the failed pancake): “Oh, that’s really bad. Okay, people, close the restaurant. No refunds.” ([04:56])
• Mindy (on 3D printing pancakes): “I just put some eggs in the ink cartridge here…and then the flour I just shove in here…” ([10:48])
• Guy Raz: “A 3D printer is a machine that prints out very specific three dimensional objects.” ([12:35])
• Mindy: “This might literally be the greatest invention since sliced bread. In fact, it basically is a loaf of bread, but in reverse.” ([13:59])
• Guy Raz: “Stem cells are perfect for growing artificial skin or bones or even parts of the human heart.” ([16:58])
• Mindy: “You know, Guy Raz, I’ve always wanted a tail for counterbalance.” ([19:28])
• Guy Raz: “If you had a 3D printer in your home, you could just print a new one right there, right on the spot, from the comfort of your own living room.” ([21:13])

Important Timestamps

• 01:08 – Dennis’ Sunday routine and lazy weekend fun
• 02:43 – Launching the “brunchy little restaurant” concept
• 04:56 – Hilarious brunch restaurant failure and pivot to podcast theater
• 05:58 – ‘Inside Tinkercast Studios’ segment begins
• 10:25-12:35 – Mindy’s pancake 3D printing mishap; Guy Raz explains 3D printing basics
• 15:15-17:07 – Biofabrication and 3D printed body parts discussion
• 21:13-21:38 – Printing at home: sustainability and the future
• 22:30-25:34 – 3D printing in space and NASA’s plans for Mars

Overall Tone & Style

The episode is exuberant, goofy, and educational—balanced between rambunctious imagination and digestible science explanations. Jokes, funny voices, and absurd hypotheticals abound, but the science remains clear and fascinating, making complex technology accessible to kids.

Conclusion

This episode is a charming, laughter-filled dive into the wonders of 3D printing. Through outlandish scenarios, Mindy and Guy Raz illuminate real science—showing how printers are revolutionizing manufacturing, medicine, and even space travel—while Dennis and Reggie’s antics give the show a lively, relatable start and finish. It's a must-listen for families who love to wonder and laugh together!