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Democritus' atomic theory fails to explain several key aspects of matter, particularly the nature of chemical reactions and the forces that hold atoms together. He proposed that atoms were indivisible and indestructible, lacking any understanding of subatomic particles or the role of electrons, protons, and neutrons. Additionally, his theory did not account for the varying properties of elements or the complexities of bonding and molecular interactions. Overall, while it laid the groundwork for later atomic theories, it lacked the empirical support and detail needed to fully explain the behavior of matter.
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What are weaknesses of activation-synthesis theory?
Weaknesses of the activation-synthesis theory of dreaming include the lack of direct evidence supporting its claims, the oversimplification of the complex process of dreaming, and the inability to explain the emotional content and deeper meanings of dreams. Additionally, some critics argue that the theory fails to account for individual differences in dream content and experiences.
How do you describe a pattern of inheritance that the blending hypothesis fails to explain?
A pattern of inheritance that the blending hypothesis fails to explain is incomplete dominance, where the heterozygous phenotype is intermediate between the two homozygous phenotypes. This contradicts the blending hypothesis, which suggests that the traits of the parents are mixed together in the offspring. In incomplete dominance, the traits remain distinct in the offspring.
When can scientific theories be changed or replaced?
Scientific theories can be changed or replaced when there has been significant evidence for the change. The scientific method must be used to create a new hypothesis, which must then be proven.
Merits of quantum theory over classical theory?
Unlike other physical theories, quantum mechanics was the invention of not only one or two scientists. Planck, Einstein, Bohr, Heisenberg, Born, Jordan, Pauli, Fermi, Schrodinger, Dirac, de Broglie, Bose are the scientists that made notable contributions to the invention of quantum theory. The axioms of quantum mechanics provide a consistent framework in which it is once again possible to predict the results of experiment, at least statistically.Its fundamental features are that a property does not exist unless it is measured, and that indeterminacy is a fundamental property of the universe. The main merit of QM is that its predictions -- such as that for the two slit experiment -- perfectly match the results, while classical mechanics fails to do so. For a scientist, nothing else much matters.
Why does the Bigbang And the steady state debunked?
The Big Bang theory is supported by strong evidence, such as the cosmic microwave background radiation and the observed redshift of galaxies, indicating that the universe is expanding from an initial singularity. In contrast, the steady state theory, which posits a constant density universe with continuous creation of matter, fails to explain these observations and does not account for the uniformity and structure observed in the universe. Additionally, the discovery of the cosmic microwave background radiation in 1965 provided a critical piece of evidence that contradicts the steady state model, leading to its decline in favor of the Big Bang theory. Overall, the wealth of empirical data favoring the Big Bang model makes the steady state theory largely untenable in contemporary cosmology.
When can a theory be changed?
whenever an experiment fails to confirm the theory it is no longer a theory ... it becomes a hypothesis
A theory which repeatedly fails to confirm the expected predictions is?
is probably an incorrect theory
When can scientific theory be change?
whenever an experiment fails to confirm the theory it is no longer a theory ... it becomes a hypothesis
Why Scientists are most likely to change a scientific theory if?
Scientists are most likely to change a scientific theory if new evidence contradicts the existing theory, if the theory fails to explain new observations accurately, or if a more comprehensive theory emerges that better explains the phenomena in question. Scientific theories are constantly refined and updated based on rigorous testing and evidence.
Limitations of Huygen's wave theory of light?
Huygens' wave theory of light cannot explain phenomena like polarization and interference accurately. It also fails to predict some experimental observations, such as the photoelectric effect. Additionally, the theory could not fully account for the speed of light in a vacuum.
When can a scientific theories be changed?
whenever an experiment fails to confirm the theory it is no longer a theory ... it becomes a hypothesis
What are the limitation of Thomson's model?
Thomson's model does not account for the existence of positively charged particles within the atom. It also does not explain the stability of the atom or the arrangement of electrons within the atom. Additionally, it fails to describe the presence of different energy levels in the atom.
Why does classical physics fail to explain the photoelectric effect?
Classical physics fails to explain the photoelectric effect because it is based on the wave theory of light, which predicts that the energy of a wave is proportional to its intensity. However, the photoelectric effect shows that the energy of ejected electrons is dependent on the frequency of light, not its intensity, as predicted by quantum theory.
In the future what may cause a theory to be revised or discarded?
A theory may be revised or discarded in the future if new evidence emerges that contradicts its predictions, if it fails to explain or account for new phenomena, or if a more comprehensive and predictive theory is developed that encompasses its core principles. Additionally, changes in scientific paradigms, advancements in technology, or shifts in scientific consensus can also drive revisions or discarding of theories.
What are weaknesses of activation-synthesis theory?
Weaknesses of the activation-synthesis theory of dreaming include the lack of direct evidence supporting its claims, the oversimplification of the complex process of dreaming, and the inability to explain the emotional content and deeper meanings of dreams. Additionally, some critics argue that the theory fails to account for individual differences in dream content and experiences.
What is a valid reason why a scientist might reject a scientific therory?
A scientist might reject a scientific theory if new empirical evidence contradicts its predictions or underlying principles. For instance, if experimental results consistently show outcomes that the theory cannot explain or predict accurately, this would undermine its validity. Additionally, if a theory fails to account for a significant body of existing data or if a more comprehensive alternative theory emerges, a scientist may deem it necessary to reject the original theory.
What is a critique of the place theory of sound perception?
A critique of the place theory of sound perception is that it oversimplifies the complex process of auditory perception. It fails to fully explain how the brain utilizes both temporal and spectral cues to accurately localize sounds. Additionally, there is evidence to suggest that the frequency-to-place mapping in the cochlea is not as precise as initially proposed.
