Marangoni effect —produces→ Mechanical motion

Conditions

• a floating or interface-bound body whose asymmetry (shape, or where it emits a surfactant or absorbs heat) leaves a net surface-tension force or torque on it
• the body must be free to move on the interface; a rigid wall only sets up a flow

Evidence · 2

1. [1]
   C. Maggi et al.. Micromotors with asymmetric shape that efficiently convert light into work by thermocapillary effects (2015)

   Nature Communications 6, 7855 · doi:10.1038/ncomms8855 · record
2. [2]
   M. Frenkel et al.. Mini-Generator of Electrical Power Exploiting the Marangoni Flow Inspired Self-Propulsion (2019)

   ACS Omega 4, 15265–15268 · doi:10.1021/acsomega.9b02257 · record

Related matrix context

This claim does not itself create a matrix cell. The context below belongs to Marangoni effect, the phenomenon it is about.

D = disequilibrium row · C = coupling family column. A cell reads the state of the atlas for that pair.

Uses of this claim

• Thermocapillary micromotordemonstrated · 3 steps
• Solutocapillary Marangoni rotordemonstrated · 3 steps
• Marangoni rotor mini-generatordemonstrated · 5 steps

• Temperature gradient → Marangoni effect → Mechanical motion → Electromagnetic induction → Charge carriers → Electrical work5/5 established · extends a recorded pathway
• Temperature gradient → Marangoni effect → Mechanical motion → Rotating-machine generator action → Charge carriers → Electrical work5/5 established · candidate
• Chemical potential difference → Combustion → Temperature gradient → Marangoni effect → Mechanical motion → Mechanical work5/5 established · extends a recorded pathway
• Electric potential difference → Peltier effect → Temperature gradient → Marangoni effect → Mechanical motion → Mechanical work5/5 established · extends a recorded pathway
• Electric potential difference → Ettingshausen effect → Temperature gradient → Marangoni effect → Mechanical motion → Mechanical work5/5 established · extends a recorded pathway
• Incident radiation flux → Photothermal absorption → Temperature gradient → Marangoni effect → Mechanical motion → Mechanical work5/5 established · extends a recorded pathway
• Radiative imbalance with the sky → Radiative sky cooling → Temperature gradient → Marangoni effect → Mechanical motion → Mechanical work5/5 established · extends a recorded pathway
• Surface energy difference → Marangoni effect → Mechanical motion → Rotating-machine generator action → Charge carriers → Electrical work5/5 established · candidate
• Nuclear binding-energy difference → Nuclear fission → Temperature gradient → Marangoni effect → Mechanical motion → Mechanical work5/5 established · extends a recorded pathway
• Nuclear binding-energy difference → Nuclear fusion → Temperature gradient → Marangoni effect → Mechanical motion → Mechanical work3/5 established · extends a recorded pathway
• Chemical potential difference → Combustion → Temperature gradient → Marangoni effect → Mechanical motion → Electromagnetic induction → Charge carriers → Electrical work7/7 established · extends a recorded pathway
• Chemical potential difference → Combustion → Temperature gradient → Marangoni effect → Mechanical motion → Rotating-machine generator action → Charge carriers → Electrical work7/7 established · candidate
• Electric potential difference → Peltier effect → Temperature gradient → Marangoni effect → Mechanical motion → Electromagnetic induction → Charge carriers → Electrical work7/7 established · same energy form
• Electric potential difference → Peltier effect → Temperature gradient → Marangoni effect → Mechanical motion → Rotating-machine generator action → Charge carriers → Electrical work7/7 established · same energy form
• Electric potential difference → Ettingshausen effect → Temperature gradient → Marangoni effect → Mechanical motion → Electromagnetic induction → Charge carriers → Electrical work7/7 established · same energy form
• Electric potential difference → Ettingshausen effect → Temperature gradient → Marangoni effect → Mechanical motion → Rotating-machine generator action → Charge carriers → Electrical work7/7 established · same energy form
• Incident radiation flux → Photothermal absorption → Temperature gradient → Marangoni effect → Mechanical motion → Electromagnetic induction → Charge carriers → Electrical work7/7 established · extends a recorded pathway
• Incident radiation flux → Photothermal absorption → Temperature gradient → Marangoni effect → Mechanical motion → Rotating-machine generator action → Charge carriers → Electrical work7/7 established · candidate
• Radiative imbalance with the sky → Radiative sky cooling → Temperature gradient → Marangoni effect → Mechanical motion → Electromagnetic induction → Charge carriers → Electrical work7/7 established · extends a recorded pathway
• Radiative imbalance with the sky → Radiative sky cooling → Temperature gradient → Marangoni effect → Mechanical motion → Rotating-machine generator action → Charge carriers → Electrical work7/7 established · candidate
• Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioisotope heating → Temperature gradient → Marangoni effect → Mechanical motion → Mechanical work7/7 established · extends a recorded pathway
• Nuclear binding-energy difference → Radioactive decay → Alpha particles → Radioisotope heating → Temperature gradient → Marangoni effect → Mechanical motion → Mechanical work7/7 established · extends a recorded pathway
• Nuclear binding-energy difference → Nuclear fission → Temperature gradient → Marangoni effect → Mechanical motion → Electromagnetic induction → Charge carriers → Electrical work7/7 established · extends a recorded pathway
• Nuclear binding-energy difference → Nuclear fission → Temperature gradient → Marangoni effect → Mechanical motion → Rotating-machine generator action → Charge carriers → Electrical work7/7 established · candidate

all 29 routes are in /api/paths.json filtered by claims ∋ claim:marangoni-produces-motion

Notes

Two independent groups: thermocapillary microgears (Maggi et al. 2015, light-heated, up to 300 r.p.m.) and solutocapillary camphor rotors carrying magnets past a coil (Frenkel et al. 2019, 10–20 h). Distinct from Marangoni flow turning a rotor: here the Marangoni stress acts on the moving body directly.

Cite this claim

Physical Transformation Atlas (2026). claim claim:marangoni-produces-motion: Marangoni effect —produces→ Mechanical motion. Dataset revision rbfbfcbb70e57 (hash of the canonical data). https://physical-transformation-atlas.wldud5192.workers.dev/claim/marangoni-produces-motion

Ids and matrix addresses are stable across revisions; the revision hash identifies the exact canonical files the record was compiled from and is meta.data_hash in every /api export. Reuse terms: see the license field in any export.