The Strategic Nuclear Forces of Britain and France
They could more than quadruple in size by 1995. So far they have been exempt from any arms-limitation treaty, but it may be in the interests of both superpowers to include them in future arms talks
They could more than quadruple in size by 1995. So far they have been exempt from any arms-limitation treaty, but it may be in the interests of both superpowers to include them in future arms talks
These newly discovered materials embody a novel kind of order, in term edia te between crystalline and amorphous. Their structure can be understood through the mathematical theory of tiling
Infrared laser beams, converted to shorter wavelengths by optical crystals, may heat heavy hydrogen to 100 million degrees Celsius. Recent work suggests the technique could lead to useful fusion power
Modern corn, the author argues, had not one ancestor but two: it is derived from a cross between a primitive corn and a perennial form of the wild grass teosinte. Breeding experiments support the theory
Periodic signals encoded in layers of Australian rock some 680 million years ago promise to advance the understanding of the sun's cyclical activity and its terrestrial consequences
It appears that the preferred water temperature changes with the age of the fish. Overcrowding in optimal zones may be the reason that certain populations fail to thrive
It was once thought to have been sudden. That View has recently been overturned: it was a gradual process. Civilization came into being well before the beginning of the. Classic period in A.D. 300