phonograph, 130, 132, 133–134,
138, 140, 147
Photo Cells and Their
Applications, 204
Photoelectricity and Its
Application, 204
photophone, 146, 147
Pierce, John Robinson, 254–255
Pinocchio, 222
Pixar, 302
Plunger, 123
Plutarch, 22
Pneumatica, 24–25
Polaroid camera, 249–250
Polge, Ernest John
Christopher, 291
Polly, 296
Poor Richard ’s almanac, 43, 47
Porter, Rodney, 266
postal service, 88–89
Post Office Reform: Its Importance
and Practicability, 88
Practical Essay on the Scientific
Repair and Preservation of
Roads, 58
Preece, William, 187–188
printer, 86
Prokhorov, Aleksandr, 261, 262
propellers, 177, 179
Proposals Relating to the Education
of Youth in Pennsilvania, 43
protozoology, 35– 37
Psalter, 30
Ptah, 20
Pyréolophore, 59
Q
quadruplex, 132
R
radioactive iodine, 214
radioactive phosphorus, 214
radio compass, 170
radio telephony, 168–170
railroad locomotive, 75– 77
Rakete zu den Planetenräumen,
Die, 258
RAND Corporation, 231–232
reader, 86
Reagan, Ronald, 288, 307
recoilless harpoon gun, 197
Recollections and Thoughts of a
Pioneer, 201
“Reflection of Hertzian Waves
from the Ends of Parallel
Wires,” 184
Reichenbach, Henry, 115
Remarks on the Present System of
Road-Making, 58
revolver, 103–105
ribonucleic acid, 268–269
rigid dirigible airships, 115–118
Road Ahead, The, 313
Rocket, 76
rocketry, 192–196, 257–261
Rohrer, Heinrich, 280–282
Röntgen, Wilhelm Conrad, 15,
128 –129, 153
Roosevelt, Franklin D., 241
Rose, Max, 125
rotating magnetic field, 151
Rover, the, 108
Rowland Institute of
Science, 250
Royal Astronomical Society, 84
Royal Society of England, 36, 38
Royal Statistical Society, 847 Index 7