Avian 3D Magnetic Navigation Sensor

SKU: 44701

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Explore avian magnetic navigation using the Magnaprobe Mark I, a 3D sensor that simulates how migratory birds read geomagnetic field lines in a lab.

Understand the Role of Quantum Mechanics in Avian Magnetic Navigation

Birds like the European robin can navigate thousands of kilometres and return to the exact same nesting spot. They utilize light-sensitive proteins in their eyes called cryptochromes. When exposed to light, these proteins trigger a radical pair mechanism, a phenomenon rooted in quantum mechanics. This allows birds to visualize the Earth's geomagnetic field lines. Simulating this behavior in a lab setting is difficult, however. Birds decode magnetic inclination and the declination angle across a complex three-axis orientation. Because the Earth's magnetic force is incredibly weak (roughly 0.3 to 0.7 gauss), standard 2D flat compasses cannot show this three-dimensional "dip," making it difficult for students and hobbyists to visualize the invisible map guiding these animals.

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This unique overlap of quantum biology and mechanical physics makes the sensor an invaluable asset for STEM education and hands-on laboratory experiments. It allows biology students to conceptualize complex animal sensory organs while simultaneously giving physics students a tangible way to map geomagnetism. Ultimately, nature's most advanced quantum mechanics can be observed right on your desk with the right analogue tool.

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Reviews (1)
2018-01-30

I have bought several of these over the years, originally from the British company that makes them, and more recently from this company. I have trouble keeping them because everyone seems to want one. They are indispensable for showing the angle of the magnetic field in three dimensions. It is like a 3 dimensional compass, and very sensitive too. It will even show the vertical angle of the Earth's magnetic field! If your business is magnets, you need one of these.

— Mark
— Indigo:

Thanks for the feedback. This version, the Mark I is incredibly sensitive as you noted. We had them tested once & the will respond to a field as weak as 0.3 gauss. Besides declination they are great for detecting magnetic leakage in NMR/MRI labs. Overkill for Q/A though, use the Mark II instead.

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