t*******d
发帖数: 2570 | 1 关于进化是不是个事实。
From National Academies
http://www.nas.edu/evolution/TheoryOrFact.html
It is both. But that answer requires looking more deeply at the meanings of
the words "theory" and "fact."
In everyday usage, "theory" often refers to a hunch or a speculation. When
people say, "I have a theory about why that happened," they are often
drawing a conclusion based on fragmentary or inconclusive evidence.
The formal scientific definition of theory is quite different from the
everyday meaning of the word. It refers to a comprehensive explanation of
some aspect of nature that is supported by a vast body of evidence.
Many scientific theories are so well-established that no new evidence is
likely to alter them substantially. For example, no new evidence will
demonstrate that the Earth does not orbit around the sun (heliocentric
theory), or that living things are not made of cells (cell theory), that
matter is not composed of atoms, or that the surface of the Earth is not
divided into solid plates that have moved over geological timescales (the
theory of plate tectonics). Like these other foundational scientific
theories, the theory of evolution is supported by so many observations and
confirming experiments that scientists are confident that the basic
components of the theory will not be overturned by new evidence. However,
like all scientific theories, the theory of evolution is subject to
continuing refinement as new areas of science emerge or as new technologies
enable observations and experiments that were not possible previously.
One of the most useful properties of scientific theories is that they can be
used to make predictions about natural events or phenomena that have not
yet been observed. For example, the theory of gravitation predicted the
behavior of objects on the moon and other planets long before the activities
of spacecraft and astronauts confirmed them. The evolutionary biologists
who discovered Tiktaalik predicted that they would find fossils intermediate
between fish and limbed terrestrial animals in sediments that were about
375 million years old. Their discovery confirmed the prediction made on the
basis of evolutionary theory. In turn, confirmation of a prediction
increases confidence in that theory.
In science, a "fact" typically refers to an observation, measurement, or
other form of evidence that can be expected to occur the same way under
similar circumstances. However, scientists also use the term "fact" to refer
to a scientific explanation that has been tested and confirmed so many
times that there is no longer a compelling reason to keep testing it or
looking for additional examples. In that respect, the past and continuing
occurrence of evolution is a scientific fact. Because the evidence
supporting it is so strong, scientists no longer question whether biological
evolution has occurred and is continuing to occur. Instead, they
investigate the mechanisms of evolution, how rapidly evolution can take
place, and related questions. | T*****n
发帖数: 2456 | 2 文章说的不错。我刚才的回帖误解了他一句话的意思，删了。关于gravitation theory
还有些细节，这里是基版，不谈了。 | l**********t
发帖数: 5754 | 3 "In that respect, the past and continuing occurrence of evolution is a
scientific fact" --
the word "evolution" is overloaded in this statement.
the similarity /gradual change of genotype/phenotype among species is an
observable & testable scientific fact. These scientific facts are consistent
with either "evoluion theory" or creationism.
The cause of those changes (which evolution theory assumes spontaneousness)
is untestable, can not be proven, and can only be disproven. you have to
accept it with faith.
of
【在 t*******d 的大作中提到】
: 关于进化是不是个事实。
: From National Academies
: http://www.nas.edu/evolution/TheoryOrFact.html
: It is both. But that answer requires looking more deeply at the meanings of
: the words "theory" and "fact."
: In everyday usage, "theory" often refers to a hunch or a speculation. When
: people say, "I have a theory about why that happened," they are often
: drawing a conclusion based on fragmentary or inconclusive evidence.
: The formal scientific definition of theory is quite different from the
: everyday meaning of the word. It refers to a comprehensive explanation of
| E*****m
发帖数: 25615 | 4 你連人是不是進化來的都不敢回答
consistent
)
【在 l**********t 的大作中提到】
: "In that respect, the past and continuing occurrence of evolution is a
: scientific fact" --
: the word "evolution" is overloaded in this statement.
: the similarity /gradual change of genotype/phenotype among species is an
: observable & testable scientific fact. These scientific facts are consistent
: with either "evoluion theory" or creationism.
: The cause of those changes (which evolution theory assumes spontaneousness)
: is untestable, can not be proven, and can only be disproven. you have to
: accept it with faith.
:
| l**********t
发帖数: 5754 | 5
敢回答的:
对于一个不完全的解释，你可也凭着信心接受。
但你把你的信念说成“科学事实”强加给别人， 就不好了。
【在 E*****m 的大作中提到】
: 你連人是不是進化來的都不敢回答
:
: consistent
: )
| E*****m
发帖数: 25615 | 6
回答在哪裡？ 這叫敢回答？
【在 l**********t 的大作中提到】
:
: 敢回答的:
: 对于一个不完全的解释，你可也凭着信心接受。
: 但你把你的信念说成“科学事实”强加给别人， 就不好了。
| l*****a
发帖数: 38403 | 7 你信仰的上帝存在是事实么？
【在 l**********t 的大作中提到】
:
: 敢回答的:
: 对于一个不完全的解释，你可也凭着信心接受。
: 但你把你的信念说成“科学事实”强加给别人， 就不好了。
| T**********1
发帖数: 2406 | 8 你哪个 cell theory is a joke.
of
【在 t*******d 的大作中提到】
: 关于进化是不是个事实。
: From National Academies
: http://www.nas.edu/evolution/TheoryOrFact.html
: It is both. But that answer requires looking more deeply at the meanings of
: the words "theory" and "fact."
: In everyday usage, "theory" often refers to a hunch or a speculation. When
: people say, "I have a theory about why that happened," they are often
: drawing a conclusion based on fragmentary or inconclusive evidence.
: The formal scientific definition of theory is quite different from the
: everyday meaning of the word. It refers to a comprehensive explanation of
| E*****m
发帖数: 25615 | 9
結果還是沒回答
【在 l**********t 的大作中提到】
:
: 敢回答的:
: 对于一个不完全的解释，你可也凭着信心接受。
: 但你把你的信念说成“科学事实”强加给别人， 就不好了。
|
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