Bold claim: innovation often hides in plain sight, tucked inside everyday tools you already own. And this is where the MacGyver spirit truly shines—turning ordinary devices into powerful scientific instruments through hacking, tinkering, scavenging, and crowdsourced collaboration.
In 2009, Rolf Hut, then a PhD student at Delft University of Technology, improvised a sensor from a $40 Nintendo Wii remote, transforming it into a device capable of measuring lake evaporation. This offbeat breakthrough occurred in Hut’s lab, using a wave generator basin to test the concept. The project became a centerpiece of his doctoral work and reshaped his career path. Today Hut is an associate professor at Delft, proudly describing himself as a professional tinkerer and a teacher of fellow tinkerers.
That same year, Hut and a few PhD colleagues kicked off a session at the American Geophysical Union (AGU) annual meeting where hydrologists demonstrated devices they’d built, hacked, scavenged, or repurposed in ways manufacturers hadn’t intended. The session was titled “Self-Made Sensors and Unintended Use of Measurement Equipment.” Its popularity grew quickly, leading Hut to repeat it in subsequent years. Early showcases included a singing-birthday-card speaker-based acoustic rain sensor, a handheld GPS unit used to gauge tidal slack in estuaries, and a massive temperature-sensing pole that revealed how a room heated up after coffee breaks.
What began as a single session soon expanded beyond AGU to the European Geosciences Union, earning a nickname the crowd adopted: “the MacGyver session.” Today, there are five MacGyver sessions spanning space, weather, ocean environments, the geosphere, and crowdsourced science—the largest lineup yet. Chet Udell, an electrical engineer and composer from Oregon State University, who helps organize the geosphere track, calls these gatherings a “powder keg of possibilities,” where unexpected collaborations can spark new initiatives.
The MacGyver ethos traces back to the 1980s TV character MacGyver, famed for clever, resourceful problem-solving with minimal tools. That same spirit translates well to science. It emphasizes curiosity-driven instrumentation and practical problem-solving that pushes beyond traditional, expensive, or inaccessible equipment. The key idea is: innovation often begins with asking questions that scientists feel reluctant to pursue because measurement seems impractical, complicated, or costly.
While invention is a big part of the picture, collaboration sits at the core of the MacGyver spirit. The movement leans into open-source and makerspace traditions, prioritizing community, transparency, and shared knowledge over competition and secrecy. No single lab holds all the expertise or tools needed for these handmade innovations to flourish.
Historically, MacGyver-style work lived mainly in informal gatherings or methods sections of papers, which rarely explained how to replicate a hacked device. In 2017, HardwareX emerged as a multidisciplinary, peer-reviewed journal dedicated to accelerating the distribution of low-cost, open-source scientific hardware. Udell, an associate editor there, has highlighted practical examples like a “Pied Piper” device that detects pest insects and lures them into traps. HardwareX citations help legitimate the time spent tinkering and prototyping.
The personal, in-person exchange remains central. Bringing tangible devices to show-and-tell sessions fosters a unique, nerd-to-nerd atmosphere that fuels serendipitous discoveries. Attendees often encounter ideas that spark new approaches to their own work, simply by seeing an unconventional instrument and discussing its workings. Experts like Kristina Collins, an electrical engineer who’s led several MacGyver sessions, stress that open-source hardware enables cross-disciplinary knowledge sharing and that the most exciting breakthroughs often happen at the interfaces between fields.
Crowdsourced science has a strong foothold in these gatherings. Collins, now at the Space Science Institute in Boulder, discovered the MacGyver sessions during her 2019 AGU visit when they were still hydrology-focused. She was developing affordable space weather receivers for Doppler measurements and collaborating with the global ham radio community to deploy them, creating a distributed, instrument-wide network to study ionospheric conditions and solar activity.
A playful example from her team is the receiver nicknamed Grape, named for its small form and for functioning as a cluster when multiple units work together. The following year, Collins and colleagues organized a MacGyver session dedicated to sensors for detecting space weather. At AGU’s Annual Meeting 2025, space weather MacGyver sessions include both oral and poster formats, with Collins presenting updates on the Personal Space Weather Station Network and the Grape-based instruments that form this distributed system.
For many geoscientists, the MacGyver approach isn’t merely a hobby—it’s fundamental to how science progresses. The questions asked and the observations made are shaped by the instruments available, and those instruments are, in turn, shaped by what can be built and shared. In that sense, what is created through tinkering can redefine what is knowable.
— Kate Evans, Science Writer
Citation: Evans, K. (2025), Celebrating the MacGyver spirit: Hacking, tinkering, scavenging, and crowdsourcing, Eos, 106, https://doi.org/10.1029/2025EO250460. Published on 9 December 2025.
Text © 2025. The authors. CC BY-NC-ND 3.0. Images may be copyrighted by their owners and reused only with permission.
