If you’re concerned about your personal finances, or energy security or climate change, and you want to cut down on your use of fossil fuels, Sustainable Energy—Without the Hot Air explains which actions make a significant difference and which make very little.
We've seen particles that are massless only when moving one direction
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Inside a hunk of a material called a semimetal, scientists have uncovered
signatures of bizarre particles that sometimes move like they have no mass,
but a...
1 hour ago
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