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The importance of physical activity
The role of genetics in lifespan
How to maintain a healthy diet
As Einstein demonstrated, conceptions of time and space based on everyday life don’t apply accurately to all speeds and all realms of space.
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MORE IDEAS ON THIS
When a theory’s predictions are confirmed, it becomes an essential tool in the further practice of science, but even good theories may someday be superseded by theories more comprehensive or more accurate.
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There is more to the world than we have dreamed of in our philosophies. There is more to be discovered, and principles today unknown will someday yield their secrets to continued inquiry, if the culture of the future remains educated enough to permit science to survive.
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The microworld of the atom, and realms even smaller, obey “quantum” laws completely at odds with common sense, and notions of cause and effect and the very nature of reality are inherently blurred on that scale.
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The way a thing works is often influenced by its connections to other things and the ways that they work, a principle that applies to everything from the networks of cells in the brain and the body’s other organs, to ecological and economic systems, to human interactions and social institutions.
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When scientific disputes arise, the ultimate arbiter is not expert authority or common sense but experimental evidence, guided by theory.
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Scientific theories are not “guesses” but are logically rigorous attempts to explain the observed facts of nature and to predict the results of new observations.
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Science successfully explains natural phenomena through rational investigation and logical reasoning rather than by recourse to superstition and mysticism.
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The universe is vast and old, with our sun one of billions of stars in a local galaxy, joined by billions of similar galaxies occupying the depths of space beyond.
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Life has changed over the eons, with complex creatures evolving from simpler precursors, and human beings therefore occupy one branch of an immense family tree of living organisms — all sharing a common molecular machinery driving basic life processes.
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Little is certain in science but much is highly probable, and the proper quantification of probabilities is essential for inferring facts, drawing conclusions and formulating sound judgments.
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Albert Einstein did not think about symmetry when he wrote his first relativity papers in 1905. He was considering several seemingly unrelated puzzles and connecting the dots.
Albert Einstein held that space and time together made up the universe's fabric that could stretch and compress. Einstein suggested that the shape of spacetime is what gives rise to the force of gravity. A concentration of mass, like the earth or sun, ben...
According to physicist Albert Einstein, time is not a constant phenomenon as it appears, but is an illusion, and can vary from different vantage points.
Space is three-dimensional, and Time, according to the famous physicist, is the fourth dimension. It also speeds up or slows down, so is ...
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