How and why theories change and how this contributes to continues and ongoing nature of science

1 answer:

8 0

There is usually some anomalous observation that doesn't seem to fit with our current understanding. Scientists assume that by working at such anomalies, they'll either disentangle them to see how they fit with the current theory or contribute to a new theory. And eventually that does happen: a new or modified theory is proposed that explains everything that the old theory explained plus other observations that didn't quite fit with the old theory. When that new or modified theory is proposed to the scientific community, over a period of time (it might take years), scientists come to understand the new theory, see why it is a superior explanation to the old theory, and eventually, accept the new theory. Theory change is a community process of feedback, experiment, observation, and communication. It usually involves interpreting existing data in new ways and incorporating those views with new results. It may depend on a single definitive experiment or observation to change people's views, or it may involve many separate studies, eventually tipping the balance of evidence in favor of the new theory.

You might be interested in

State two procedures which should be used to properly handle a light microscope

babunello [35]

hold at base and arm

5 0

3 years ago

An aerospace engineer is designing a rocket to have three stages. Which is

valina [46]

Answer:

A not reasonable explanation for an aerospace engineer designs a rocket to have three stages is:

A. To simplify the design of the rocket

Explanation:

A three stages rocket permits to separate the fuel compartments. The rocket must be launched with a huge amount of fuel to last the entire travel. Then the initial mass of the rocket and the fuel is considerably large.

As the rocket flies, part of the fuel is consumed and so some compartements may be separated and removed decreasing the mass of the rocket as it flies (option D. is a reasonable explanation), so the rocket only carries the necessary mass (statement B. is a reasonable explanation).

As the rocket moves away from Earth, the gravitational force decreases and, in the space, the amount of thrust needed is lesser, which the aerospace engineers take into account for the design (choice C. is a reasonable explanation).

The only not reasonable explanation to design a three stage rocket is to simplify the design of the rocket: designing a rocket with three modules each with different features, functions, and the detachment mechanisms brings lot of complex problems to solve. So, option A. is the correct answer.

4 0

3 years ago

Read 2 more answers

PLEASE HELP!!!!!!!!!!!!!!!!!!!

Alborosie

Based on temperature changes, the phase changes that occur in water is from a solid at A to a liquid at B, and from liquid a B to gas at C.

<h3>What is change of state?</h3>

Change of state is the process whereby a substance changes its state of matter from one form to another as as result of heat changes.

In the graph shown above, water exists in three states at different points.