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Continental drift: the history of an idea
Continental drift: the history of an idea

... Therefore, poles were fixed and continents moved and were once combined to form a supercontinent. ...
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AAAAMotors and Magnets

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... Some examples are given in the table at right The magnetic moment of a proton or neutron is much smaller than that of an electron and can usually be neglected ...
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... • Grain size (wind direction/strength). • Soil type (vegetation, rainfall). • Magnetic susceptibility (source and postdepositional changes). • Pollen (vegetation). • Land snails (temperature, rainfall). ...
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... compounds. A coordination compound forms when a central metal atom or ion accepts pairs of electrons from Lewis bases to form a coordination sphere. The ions or molecules donating electron pairs are called ligands. The number of electron pairs accepted by the central metal atom or ion is its coordin ...
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Salivary Buffers and Coagulation Factors

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* Magnetic Scalar Potential * Magnetic Vector Potential

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... o inherent in magnetic objects  Magnet = an object with strong magnetic field and will attract diff metals to it.  Magnetic Field o Consiss of imaginary lines of Flux coming forom or moving or spinning A magnet is an object that exhibits a strong magnetic field and will electricity charged particl ...
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... Transglycosylation (covered as (b)(iii) above) Transpeptidation: the process of cross-linkage of peptide chains to produce the insoluble, strong mesh of peptidoglycan Involves enzyme-catalysed attack by a free NH2 group of Gly (S. aureus) or DAP (E. coli) on the C=O of the penultimate D-Ala, breakin ...
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... thumb pointing in the direction of the current will cause the fingers to wrap in the direction of the magnetic field that surrounds the wire. 4. The magnetic field becomes stronger as the current increases. Field strength is directly proportional to the current. 5. The direction of the magnetic fiel ...
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The Structure of the Magnetosphere

كيمياء الحالة الصلبة
كيمياء الحالة الصلبة

... away by photons as electrons move across the junction under forward bias. Practical light-emitting diodes of this kind are widely used in electronic displays. The wavelength of emitted light depends on the band gap of the semiconductor. Gallium arsenide it self emits infrared light, but the band ga ...
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Magnetotactic bacteria

Magnetotactic bacteria (or MTB) are a polyphyletic group of bacteria discovered by Richard P. Blakemore in 1975, that orient along the magnetic field lines of Earth's magnetic field. To perform this task, these bacteria have organelles called magnetosomes that contain magnetic crystals. The biological phenomenon of microorganisms tending to move in response to the environment's magnetic characteristics is known as magnetotaxis (although this term is misleading in that every other application of the term taxis involves a stimulus-response mechanism). In contrast to the magnetoception of animals, the bacteria contain fixed magnets that force the bacteria into alignment — even dead cells align, just like a compass needle. The alignment is believed to aid these organisms in reaching regions of optimal oxygen concentration.
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