# Aprender Sumergiéndote | Carlos y José | TEDxULPGC

Source: https://www.youtube.com/watch?v=nwFUsASSPJw
Recap page: https://rapidrecap.app/video/nwFUsASSPJw
Generated: 2025-12-09T16:45:09.094+00:00

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## Quick Overview

The Kármán Project team from the University of Las Palmas de Gran Canaria (ULPGC) successfully developed a human-powered submarine propelled by pedals, overcoming challenges in design, modeling, material construction, and operational safety to compete in the European and International Submarine Races.

**Key Points:**
- The Kármán Project team from ULPGC participated in the European and International Submarine Races with a human-powered, pedal-propelled submarine.
- The team encountered four main problems: initial design, 3D modeling and simulations, fiberglass construction, and ensuring pilot safety and maneuverability.
- The design process included five erroneous versions before settling on the final form, emphasizing iterative testing.
- They utilized biometrics, mimicking fish movement, for the propulsion system instead of a traditional propeller (which they discarded).
- A safety buoy mechanism was designed to automatically ascend the submarine in case of emergency.
- The team emphasized that the best way to learn engineering is by building something and finding solutions to real problems encountered during construction.

![Screenshot at 00:45: The slide introducing the "KÁRMÁN ULPGC PROJECT" team members, listing the seven components of the student group from the University of Las Palmas de Gran Canaria \(ULPGC\).](https://ss.rapidrecap.app/screens/nwFUsASSPJw/00-00-45.png)

**Context:** This TEDx talk, presented by two members of the Kármán Project from the Universidad de Las Palmas de Gran Canaria (ULPGC), details their journey participating in the international human-powered submarine races. The presentation focuses on the engineering challenges they faced, starting from the initial conception of a pedal-powered underwater vehicle to overcoming specific technical hurdles in design, material science, and safety systems.

## Detailed Analysis

The presentation begins with the introduction of the Kármán Project team from ULPGC, who took on the challenge of building a human-powered submarine for the European and International Submarine Races (00:13-00:17). The speaker notes that the project was unusual, involving students from Naval Technology Engineering (00:48-00:51). The core of the talk focuses on the four major problems they encountered and solved. First, the design phase required five incorrect versions before they settled on a final shape, highlighting the iterative nature of engineering (1:36-1:41). The second challenge involved modeling and simulation, where they focused on calculating forces, angles, and speeds (1:52-2:02). Crucially, they chose to mimic the movement of fish (biomimetics) for propulsion rather than using a conventional propeller, which they rejected due to issues with speed, stability, and comfort for the pilot (2:24-2:40). The third major issue was construction, involving layering fiberglass, which had to be perfect to avoid structural failure (1:57-2:03). The fourth problem was safety: they designed a buoy mechanism that automatically surfaces the submarine if the pilot is in distress or if the connection tether breaks (3:37-3:55). The speakers conclude that the best engineering education comes from confronting real-world problems during construction and finding solutions, noting that while their submarine hadn't officially touched water yet, they were one day closer to achieving their goal (4:38-4:50).

### Introduction to Kármán Project

- Team members from ULPGC
- Building a human-powered, pedal-propelled submarine
- Participation in European and International Submarine Races (00:04-00:59)

### Engineering Challenges

- Problem 1: Design iterations (5 erroneous versions)
- Problem 2: Modeling forces, angles, and speeds (1:52)
- Problem 3: Fiberglass construction requiring precision (2:01)
- Problem 4: Safety system via an emergency buoy (3:37)

### Propulsion System Choice

- Rejected traditional propeller due to speed/stability issues
- Adopted biomimicry based on fish movement (2:26-2:39)

### Conclusion on Learning

- Best learning method involves building and solving problems encountered in real-time (4:56-5:13)
- Emphasized continuous progress toward their goal (4:38)

![Screenshot at 00:03: TEDx ULPGC logo and sponsor identification from the University of Las Palmas de Gran Canaria and the Chair of Medical Technologies.](https://ss.rapidrecap.app/screens/nwFUsASSPJw/00-00-03.png)
![Screenshot at 00:45: Slide showing the Kármán ULPGC Project team members and listing the seven components of the engineering group.](https://ss.rapidrecap.app/screens/nwFUsASSPJw/00-00-45.png)
![Screenshot at 01:57: Slide titled "Nuestro diseño" \(Our design\) comparing the CAD model of the submarine hull with the physical mold being shaped with filler material.](https://ss.rapidrecap.app/screens/nwFUsASSPJw/00-01-57.png)
![Screenshot at 03:38: Close-up image of the team's designed safety buoy system, featuring yellow foam sections and yellow rope spooling.](https://ss.rapidrecap.app/screens/nwFUsASSPJw/00-03-38.png)
![Screenshot at 05:00: Photo of the Kármán team members in protective suits, giving thumbs-up signs next to a large white molded piece of the submarine hull.](https://ss.rapidrecap.app/screens/nwFUsASSPJw/00-05-00.png)