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The proton-proton chain requires a temperature of 100 million K to get started.
GI Joe Action Figure
A popular line of military-themed action figures produced by Hasbro, initially released in the 1960s.
Neurofeedback
A training process that aims to teach an individual to control brain functions using real-time displays of brain activity.
Biofeedback
A technique that teaches individuals to control bodily processes that are normally involuntary, such as heart rate, through monitoring.
Brain Wave Activity
Oscillations of electrical potentials in the brain, measurable with electroencephalography, reflecting different states of brain function or consciousness.
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