Item Status 13. Solar Cutting Preliminary work in progress 14. SOFI Removal 'Cheese cutter' ground tested on SOFI 15. Induction Furnace Preliminary work in progress 16. Grinding/Powdering Preliminary work in progress 17. Tether Materials Short tether already flown Long tether materials under study for Italian subsatellite 18. Tether Winch Under study for subsatellite 19. Tether Dynamics Under study 20. Tether Electrodynamics Under study 21. Liquid Storage Experiments already flown 22. Liquid Handling Experiments already flown 23. Military Applications Under study 24. Orbital Cleanup Preliminary proposal only 25. Market Study Under study 26. Contamination/Outgassing Preliminary study complete 27. Residual Cryogenics Preliminary scavenging study complete 28. Aluminium Rocket Initial proposal only Likely to involve substantial investment and R&D
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