Answer / guest

Recent measurements indicate that the expansion of the
universe is speeding up rather than slowing down. This
conclusion goes against the fundamental idea that gravity
is attractive. If these measurements hold up, they require
the presence of a form of matter dubbed "dark energy" whose
gravity is repulsive rather than attractive

Are there new states of matter at ultrahigh temperatures and densities?

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1 Answers   Geo Research Centre,

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how the aspirator pump works?

1 Answers   NTPC,

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what is the difference between delta G and delta G powers zero?

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Do neutrinos have mass?

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what is astigmatism?

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what is the use of photometre?

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What is the Casimir Effect?

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