منابع مشابه
Visually discerning the curvature of the Earth.
Reports and photographs claiming that visual observers can detect the curvature of the Earth from high mountains or high-flying commercial aircraft are investigated. Visual daytime observations show that the minimum altitude at which curvature of the horizon can be detected is at or slightly below 35,000 ft, providing that the field of view is wide (60 degrees ) and nearly cloud free. The high-...
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All 16 centromere DNA regions of Saccharomyces cerevisiae including 90 bp framing sequences on either side were cloned. These 300 bp long centromere regions were analysed by native polyacrylamide gel electrophoresis and found to display a reduced mobility indicative of DNA curvature. The degree of curvature is centromere dependent. The experimental data were confirmed by computer analysis of th...
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One aspect of the relativistic space-time curvature due to the presence of mass is the breakdown of Euclidean (fiat-space) geometry. For example, the diameter of a spherical mass is greater than the result obtained by dividing the circumference by π. The objective of this article is to determine the amount of discrepancy between ”relativistic” and” non-relativistic” diameters for objects such a...
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In 1998, NASA launches EOS-AM1, the first of a series of the Earth Observing System (EOS) satellites. EOS will monitor the evolution of the state of the earth for 18 years, starting with the morning observations of EOS-AM1 (10:30 a.m. equatorial crossing time). An integrated view of the earth, as planned by EOS, is needed to study the interchange of energy, moisture, and carbon between the land...
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In striated muscles, invaginations from the plasma membrane, termed transverse tubules (T-tubule), function in the excitation-contraction coupling machinery. BIN1 (isoform8) plays a critical role in the biogenesis of T-tubules. BIN1 contains an N-terminal BAR domain to sense and induce membrane curvature, an isoform8-specific polybasic motif (exon10) as the phosphoinositide binding module and a...
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ژورنال
عنوان ژورنال: School Science and Mathematics
سال: 1909
ISSN: 0036-6803
DOI: 10.1111/j.1949-8594.1909.tb03029.x