M-Hair: Creating Novel Tactile Feedback by Augmenting the Body Hair to Respond to Magnetic Field
summary
Augments body hair with off-the-shelf ferromagnetic cosmetics (iron oxide or neodymium powders mixed into a wax/carrier and applied with an eyelash brush) and actuates them with a permanent magnet on CNC to move a field across the forearm. System targets CT-like response at 3 cm/s at 25 mm and uses ~50 mT to produce ≈1° hair deflection. A six-person study shows limited shape/size discrimination but consistent affective reports: pleasant, windy, ticklish. Makeup rinses off with water; rapid changing fields remain untested due to safety/regulatory concerns.
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chapters (9)
- 0:00Introduction to M-Hair
- 0:28Motivation and social touch
- 1:57M-Hair concept and non-contact haptics
- 3:24Hair augmentation with cosmetics
- 4:50Magnetic cosmetics and recipe
- 6:19Hair stimulation with magnetic field
- 8:30User study and discriminative perception
- 9:56Potential and future research
- 10:39Q&A session
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