These tiny trackers were designed to be light enough for a butterfly
· fastcompany.com · popularity 15/100 · 0 similar stories today
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Summary
To track individual butterfly movements, designers had to make a transmitter weighing less than a grain of rice. Researchers track animal movements through tags on their limbs, wings, and shells, but how do you track a creature that weighs less than a gram? To build a device tiny and light enough …
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