How did the drug affect JFK's performance with Nikita Khrushchev?

No one knows how often JFK took Jacobson's concoctions or how much amphetamine they contained, so it's not possible to say for certain how it affected Kennedy's performance. “Under controlled circumstance for a short period of time, it might have helped him to enhance his performance.

the transfer of energy between two molecules spaced just nanometers apart plays a key role in many technologies, including photovoltaics, quantum information systems, lighting, and sensors, as well as in biophysics to measure nanometer distances and in photosynthesis. but an open question in this area is what effect, if any, the surrounding photonic environment has on this nanoscale energy transfer. by designing and performing a carefully controlled experiment to answer this question, scientists have settled the debate and found clues to improving the efficiency of many of the technologies that rely on this process.

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