View from Griffith Observatory
THE POPULATION BOMB
Figure 38
Figure 37
Figure 36
Figure 35
HOW TO KNOW HIGHER WORLDS
Figure 39
Today Has Been Alright
The Soundscape
Cold night....
Zero / शून्य {shunya} / μηδέν
The travels of Pedro de Cieza de Léon
Portrait of Somasa
Thus Spake Zarathustra
Figure 8.2
E coli
MacTutor History of Mathematics Archive
Figure 7.3
PLATE 9
PLATE 8
PLATE 2
A view from Griffith Observatory
Friends in Spain
Paella
Kauai
JOURNAL OF A CAVALRY OFFICER
Prisoner's rhyme
Figure 17
Figure 16
Saccade
. . . . Walk. . . .
Figure 2.11
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The vestibulo-ocular reflex is a fancy name for our ability to keep our eyes steadily looking at some particular point despite movements of our head. Your eyes muscles compensate for head motion, shifting your eyes an equal and opposite amount. This keeps the image of the visual scene quite stable on the retina as we bounce about. The ‘vestibulo’ part of the name reflects the role of your sense of balance, or more precisely, the sense of head orientation and movement provided by the vestibular organs in your inner ear. The ‘ocular’ part indicates that the eyes are involved. And the ‘reflex’ part reflects that moving the eyes in this way is fast and automatic. You can’t not do this. (Have someone watch or film your eyes while you turn your head. No matter how hard you try not to, your eyes will counteract the motion of your head.)
The brain has to learn how far you should move your eyes in the opposite direction to the head movement. It must also dynamically adjust this reflex to take into account viewing distance between the eyes and head rotate about different axes . . . . Page 191/192
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