Not all types of helicopters are susceptible to ground resonance. All those two-blade Robinsons are exempt because their “teetering” rotors are a single rigid structure, like a see-saw.

Nuclear Magnetic Resonance (NMR) was first experimentally observed in ... Since then, NMR spectroscopy has become an indespensible tool for the determination of molecular structure, the study of ...

The Nuclear Magnetic Resonance Core supports MSK researchers by providing ... analysis for determination of molecular structure, chemical mechanisms, purity, stability, biological uptake and other ...