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Vor 19 Stunden · History Early history. The hypothesis of dark matter has an elaborate history. In the appendices of the book Baltimore lectures on molecular dynamics and the wave theory of light where the main text was based on a series of lectures given in 1884, Lord Kelvin discussed the potential number of stars around the Sun from the observed velocity dispersion of the stars near the Sun, assuming that ...
Vor 19 Stunden · Disability. Disability is the experience of any condition that makes it more difficult for a person to do certain activities or have equitable access within a given society. [1] Disabilities may be cognitive, developmental, intellectual, mental, physical, sensory, or a combination of multiple factors. Disabilities can be present from birth or ...
Vor 19 Stunden · In tandem with the Biden campaign, it announced earlier this week that it would solve Biden’s problem with Ohio’s ballot deadline itself by holding a virtual roll call vote to nominate him. A ...
