What feels supernatural often turns out to be physics.
Across five distinct domains of inquiry, researchers have pulled back the curtain on phenomena long misread as mysterious, random, or inexplicable — revealing instead the quiet, elegant logic of the physical world. From the infrasound humming inside old buildings to the chemical intelligence of an octopus arm, from dandelion seeds obeying fluid mechanics to surgeons guided by digital replicas of living hearts, science continues its ancient work: not of disenchanting the world, but of deepening our wonder at how it actually operates. These discoveries, gathered by CBC's Quirks & Quarks, remind us that the uncanny and the overlooked are often simply the not-yet-understood.
- Buildings long rumored to be haunted may instead be vibrating at infrasound frequencies that raise cortisol and unsettle the nervous system — a finding that reframes paranormal belief as a physiological response.
- A single arm of the male octopus, long known to biologists but poorly understood, turns out to harbor cells that chemically detect female hormones — transforming a reproductive appendage into a sensory instrument.
- A chance walk through a dandelion field at Cornell led physicists into fluid dynamics, uncovering how seed dispersal mechanics could help predict and manage the spread of invasive plant species.
- At Johns Hopkins, ten patients with life-threatening arrhythmias were treated using personalized 3D digital heart models, pushing surgical success rates from 60 percent to a complete 100 percent — a result published in the New England Journal of Medicine.
- Taken together, these breakthroughs signal a broader momentum: science is steadily converting the overlooked and the eerie into legible, actionable knowledge.
Science has a way of dissolving mystery into mechanism, and a recent episode of CBC's Quirks & Quarks gathered five discoveries that do exactly that — each one rendering something uncanny or overlooked newly visible.
Begin with the creepy building. Rodney Schmaltz and his team at MacEwan University in Edmonton found that infrasound — low-frequency waves produced by aging pipes and settling infrastructure — may explain why certain spaces feel unsettling. These waves cannot be heard, only felt, and research published in Frontiers in Behavioral Neuroscience showed they increase irritability and raise cortisol levels. What people interpret as a haunting may simply be their nervous system responding to acoustic frequencies below conscious awareness.
At Harvard, Nick Bellono's team discovered that one of the male octopus's eight arms — the hectocotylus, long known as a reproductive appendage — contains specialized cells capable of detecting progesterone, the female sex hormone. Centuries after biologists first identified this arm, science has finally revealed that it functions as a kind of chemical compass, guiding the male toward a potential mate.
At Cornell, physicist Chris Roh and PhD candidate Jena Shields noticed something simple while walking through a dandelion field: only the seeds closest to your mouth fly away when you blow. That observation pulled them into fluid dynamics, and their findings, published in the Journal of the Royal Society Interface, suggest that understanding dandelion seed dispersal could illuminate how invasive plant species spread across landscapes.
The most immediately consequential work came from Johns Hopkins, where Natalia Trayanova's team built personalized 3D digital replicas of patients' hearts, mapping diseased tissue with precision. Surgeons used these virtual models to plan arrhythmia interventions before touching the actual organ. The outcome: ten patients remained arrhythmia-free after one year, and the success rate climbed from 60 percent to 100 percent — results published in the New England Journal of Medicine.
What unites these five stories is a shared gesture: taking what seems mysterious or random and making it legible. The haunted building is resonating. The octopus is reading chemistry. The dandelion is following physics. The surgeon is working from a blueprint. Each discovery is a reminder that the not-yet-understood is simply waiting for the right question.
Science has a way of dissolving mystery into mechanism. What feels supernatural often turns out to be physics. On a recent episode of Quirks & Quarks, researchers explored five discoveries that do exactly that—they explain the uncanny, the intimate, and the everyday through the lens of how the world actually works.
Start with the creepy building. You've felt it: that unsettling presence in an old house or abandoned structure, the sense that something is watching you even though nothing is there. Rodney Schmaltz and his team at MacEwan University in Edmonton set out to understand why. They found that infrasound—sound waves so low-frequency that human ears cannot detect them—may be the culprit. These waves, produced by aging pipes, machinery, and the settling infrastructure of old buildings, can be felt rather than heard. The research, published in Frontiers in Behavioral Neuroscience, showed that exposure to infrasound increases irritability and raises cortisol, the body's stress hormone. The implication is both mundane and profound: what people interpret as paranormal activity might simply be their nervous system responding to acoustic frequencies below conscious awareness.
Then there is the octopus. Researchers at Harvard University, led by Nick Bellono, discovered that male octopuses possess a sensory superpower in one of their eight arms. This arm, called a hectocotylus, is not used for exploration or feeding. It exists for one purpose: reproduction. Within its tissue are specialized cells capable of detecting progesterone, the female sex hormone. When a male octopus encounters a potential mate, this arm essentially smells her chemical signature and alerts him to her presence. Biologists have known about the hectocotylus for centuries, but only now understand that it functions as a kind of chemical compass. The work appeared in Science.
At Cornell University, a physicist named Chris Roh and his PhD candidate Jena Shields were walking through a field of dandelions when they noticed something simple but revealing: when you blow on a dandelion seed head, only the seeds nearest to your mouth actually fly away. This observation led them into fluid dynamics. They studied how the distinctive umbrella-like structure of dandelion seeds interacts with air currents, and their findings, published in the Journal of the Royal Society Interface, have implications beyond botany. Understanding how dandelion seeds disperse could illuminate the mechanics of how invasive plant species spread across landscapes—knowledge that matters for environmental management and conservation.
The most immediately consequential discovery came from Johns Hopkins University, where Natalia Trayanova and her team created digital twins of patients' hearts. These are not simple models. Each one is a personalized, three-dimensional replica showing the exact structure and diseased tissue of an individual patient's heart. Surgeons used these virtual hearts to plan interventions for patients with arrhythmias—life-threatening irregular heartbeats. They could probe the digital model, identify the precise targets for treatment, and develop a surgical strategy before ever touching the actual organ. The results were striking: ten patients treated this way remained arrhythmia-free after one year, and the treatment success rate jumped from 60 percent to 100 percent. The research was published in the New England Journal of Medicine.
These five stories share a common thread. They take phenomena that seem mysterious, inexplicable, or simply overlooked, and they render them visible through scientific investigation. The creepy building is not haunted; it is resonating at frequencies your body can sense. The male octopus is not searching blindly; he is reading chemistry. The dandelion is not randomly scattering seeds; it is following the rules of fluid mechanics. The surgeon is not operating on intuition; she is working from a digital blueprint. And the evergreen tree—well, that question remains open, waiting for the next curious mind to ask why.
Notable Quotes
After one year, all 10 patients remained arrhythmia-free, and the treatment rate improved from 60 to 100 percent— Natalia Trayanova, Johns Hopkins University
The Hearth Conversation Another angle on the story
Why does infrasound matter so much? Couldn't old buildings just be creepy for other reasons—bad lighting, isolation, the weight of history?
Sure, those things contribute. But infrasound is different because it works on your body without your awareness. You don't hear it, you don't see it, but your nervous system reacts. It's a physical mechanism, not a psychological one. That's what makes it important.
So someone who believes their house is haunted might actually just be living in a building with vibrating pipes?
Possibly. The research doesn't say ghosts don't exist. It says infrasound can produce the exact sensations people associate with paranormal activity—unease, dread, a sense of presence. It's an explanation that doesn't require the supernatural.
What strikes me about the octopus discovery is that they've been using this arm for reproduction for millions of years, and we only just figured out how it works.
Exactly. The hectocotylus was visible, observable, documented for centuries. But no one asked the right question: what can it sense? Sometimes the most important discoveries are hiding in plain sight, waiting for someone to wonder about the mechanism.
And the virtual hearts—that feels like it could change surgery entirely.
It already has, for these ten patients. But yes, the principle is scalable. If you can model a heart perfectly and test your intervention before you operate, you eliminate guesswork. You move from 60 percent success to 100 percent. That's not incremental improvement. That's transformation.