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Unpuzzling the Universe I
Within the Suns Family
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airplane alpha particles American animals artificial astronomers atom autogyro balloon become beryllium body bones brain cause cent changes chemical color cosmic rays deuterium deutons discovered discovery disease early earth effect electrical elements energy engine erosion expedition experimental experiments eyes feet FIGURE forest frequency gamma rays gland heavy hydrogen heavy water height helium hormone human hydrogen important inch increase Indian insects Institute Jivaro known laboratory land layer light living malaria male mass matter ment mental meters method miles per hour million volts modern mosquito Mound Builders natural nerve neutrons observed parathyroid patients photographic physicists pilot pituitary pituitary gland plant population positron produced Prof proton radiation radio radioactivity region result scientific scientists Sealand showed speed stars sterilization stratosphere sunspot temperature theory tion transmutation tube United University Van de Graaff voltage volts waves weather X-rays