The Jordan Valley Plan
The historic region at the eastern end of the Mediterranean is especially suited to a unified development of water resources. Some advances have been made in spite of Arab-Israeli tensions
Volume 212, Issue 3
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Features
The Structure of Crystal Surfaces
By using low-energy electrons as a probe a new instrument can disclose the configuration of atoms on the surface of a crystal. The technique has revealed structures of unexpected complexity
Learning in the Octopus
The animal cooperates readily in laboratory experiments. Tests of its capacities before and after brain surgery lend support to the idea that there are two kinds of memory: long-term and short-term
The Magnetosphere
Satellite measurements indicate that the earth's magnetic field is confined to a definite volume of space shaped somewhat like a teardrop with a tremendously long tail
The Sarcoplasmic Reticulum
High-resolution electron micrographs reveal that this complex network of tubules and sacs inside the striated muscle fiber performs the functions of rapid telegraphy, plumbing and supply
Acoustic Methods in Psychiatry
In which the speech of disturbed persons is analyzed not for content but for such attributes as loudness and timbre. The results indicate that this analysis can be useful in the description of mental state
De Forest and the Triode Detector
He invented the three-electrode vacuum tube without understanding how it worked. His grid-triode was no great success as a detector, but it did eventually make modern radio and electronics possible
Computer Experiments in Fluid Dynamics
The fundamental behavior of fluids has traditionally been studied in tanks and wind tunnels. The capacities of the modern computer make it possible to do subtler experiments on the computer alone