Edwin Powell Hubble
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چکیده
منابع مشابه
What Hubble really meant by late and early type: simply more or less complex in appearance
It is widely written and believed that Edwin Hubble introduced the terms ‘early’ and ‘late types’ to suggest an evolutionary sequence for galaxies. This is incorrect. Hubble took these terms from spectral classification of stars to signify a sequence related to complexity of appearance, albeit based on images rather than spectra. The temporal connotations of the terms had been abandoned prior t...
متن کاملHubble-bubble in Iranian Folklore
Hubble-bubble has been the most common device for smoking tobacco in Iran and its neighboring. It has a folkloric name in every region. Hubble-bubble consists of a glass pitcher or pottery at the bottom, a wooden body in the middle, a wooden or plastic tube attached to the body for puffing, and a censer at the top to put tobacco and charcoal. Puffing causes the charcoal to catch fire and the to...
متن کاملMicrowave enhanced reaction of carbohydrates with amino- derivatised labels and glass surfaces
Edwin A. Yates, Martin O. Jones, Caroline E. Clarke, Andrew K. Powell, Simon R. Johnson, Adrian Porch, Peter P. Edwards and Jeremy E. Turnbull School of Biosciences, University of Birmingham, Birmingham, UK B15 2TT School of Chemical Science and the School of Metallurgy and Materials, University of Birmingham, Birmingham, UK B15 2TT Electronics Division, School of Engineering, Queen’s Building,...
متن کاملWhat are the Empirical Bases of the Hubble Law?
Contrary to what is commonly believed, the Hubble Law is historically of theoretical origin. The strict redshift-distance proportionality was never deduced from observations. The interpretation of redshifts in terms of a Doppler effect is based on theoretical premises. The positive correlation between the distance of a galaxy and its redshift was actually known before Hubble, i.e. before the sc...
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