Here are some sentences.She is a practical woman.That is a course of practical knowledge.
Science used for practical purposes is technology.
A real life demonstration is a practical application of something
The practical application of science is technology, such as your computer and the internet.
Practical Science are people who do experients to explain the Science theories.
Technology
technology
Technology
hanging drop tecnique have practical value
pie
A common belief or practice which may or may not be true or have practical value could be called a tradition or a custom.
Giving something value that has very little practical value. devalues thing that have real value.
it means points taken away
It is essentially a scientific toy, with no practical value.
A common practice which may or may not be true or have practical value is called tradition. Another word to describe it may be custom.
If it has been going a long time, then a common belief or practice which may or may not be true or have practical value could be called a "tradition" or a "custom."
The study of the theoretical foundation of information and computation and of practical techniques for their implementation and application in computer systems.