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On March 23, 1989, the chemists Stanley Pons of the University of Utah and Martin Fleischmann of the University of Southampton announced to the world that they had achieved cold fusion. That is, with a solution of salts in a simple desktop apparatus, they had caused hydrogen atoms to 'fuse' or combine into helium atoms. This reaction had previously been achieved only in hydrogen-bomb blasts and in giant research projects lasting many decades and costing many billions of dollars.
The two chemists claimed that they had been able to measure the energy released by the fusion process in their simple setup. The scientific world was in an uproar, because if this were really true, cold fusion would be the greatest discovery in a thousand years -- a practically infinite source of cheap, safe energy.
However, no matter how hard they tried, no other scientists were able to get the same results. Pons and Fleischmann had dozens of excuses, but none of them were shown to have merit. Ultimately, both scientists resigned in disgrace.
REPLICATION
What else can I help you with?
What primary principal of experimental design did their experiment fail?
The primary principle of experimental design that their experiment likely failed is the control of variables. Without properly controlling for extraneous variables, it becomes challenging to establish a clear cause-and-effect relationship between the independent and dependent variables. This lack of control can lead to confounding factors influencing the results, thereby compromising the validity and reliability of the experiment's findings.
Blocking in experimental design is useful because it?
controls for multiple variables in an experiment.
The goal of using replication control randomization and blindness in experimental design is to compeletey eliminate bias from an experiment?
False
What kind of bias is a mistake in the design of an experiment that makes a particular result more likely?
experimental
What would most likely occur if an experimental design specifies only test group?
The experiment would lack a control group
What primary principal of experimental design did their experiment fail?
The primary principle of experimental design that their experiment likely failed is the control of variables. Without properly controlling for extraneous variables, it becomes challenging to establish a clear cause-and-effect relationship between the independent and dependent variables. This lack of control can lead to confounding factors influencing the results, thereby compromising the validity and reliability of the experiment's findings.
What principle experimental design reduces errors due to chance by repeating an experiment on different subjects under different conditions?
Replication
Why is an experimental design needed for the success of the experiment?
yes
What is the variable setup in an experiment called?
The variable setup in an experiment is called the experimental design. This design includes all the factors and conditions that are manipulated or controlled in the experiment to test the research hypothesis.
The purpose of blocking in experimental design is?
the control for multiple variables in a experiment
Blocking in experimental design is useful because it?
controls for multiple variables in an experiment.
What is a uncontrolled vairable?
* factors which are not considered in the experimental design * shouldn't have any effect on the experiment
What is the relationship between the experiment and the hypothesis and the experimental design?
double blind -hardvard teacher
Is a experimental design the same as a procedure?
No, an experimental design and a procedure are not the same. Experimental design refers to the overall plan or framework for conducting an experiment, including how variables are manipulated and controlled, as well as the methods for data collection. In contrast, a procedure outlines the specific steps or actions to be taken during the experiment to implement the design. Thus, while related, they serve different purposes in the research process.
What is the principle of interspersion and how should it be incorporated into the experimental design?
The principle of interspersion involves distributing treatments evenly throughout the experimental area to reduce the impact of local variation on the results. It should be incorporated into the experimental design by randomizing the placement of treatments to ensure that any potential sources of variability are evenly spread across the experimental units, leading to more reliable and robust results.
The goal of using replication control randomization and blindness in experimental design is to compeletey eliminate bias from an experiment?
False
What so scientist make to help them make a hypothesis or collect data during an experiment?
Experimental design and plan.
