Results for: main-science Search Results
Family Filter:
Science and technology is a double-edged sword
5:42
Biology is the natural science that involves the study of life and living organisms, including their physical and chemical structure, function, development and evolution. Modern biology is a vast field, composed of many branches. Despite the broad scope and the complexity of the science, there are certain unifying concepts that consolidate it into a single, coherent field. In general, biology recognizes the cell as the basic unit of life, genes as the basic unit of heredity, and evolution as the engine that propels the creation of new species. It is also understood that all organisms survive by consuming and transforming energy and by regulating their internal environment. Sub-disciplines of biology are defined by the scale at which life is studied, the kinds of organisms studied, and the methods used to study them: biochemistry examines the rudimentary chemistry of life; molecular biology studies the complex interactions among biological molecules; cellular biology examines the basic building-block of all life, the cell; physiology examines the physical and chemical functions of tissues, organs, and organ systems; ecology examines how organisms interact in their environment; and evolutionary biology examines the processes that produced the diversity of life. Ecology is the study of the distribution and abundance of living organisms, the interaction between them and their environment. An organism shares an environment that includes other organisms and biotic factors as well as local abiotic factors (non-living) such as climate and ecology. One reason that biological systems can be difficult to study is that so many different interactions with other organisms and the environment are possible, even on small scales. A microscopic bacterium responding to a local sugar gradient is responding to its environment as much as a lion searching for food in the African savanna. For any species, behaviors can be co-operative, competitive, parasitic, or symbiotic. by Royal Mentor
27 Aug 2017
326
Share Video

3:22
On theoretical hottest day of lunar calendar year, Royal Mentor Lee enjoys watermelon for cool feeling. Welcome to share materials & ideas with RML on Main Science Subjects & Sun Tree Projects.
23 Jul 2017
172
Share Video

0:23
Royal Mentor Lee is native Han Chinese. Sino Chat is platform for sinologues world-wide. Welcome to Join Main Science Subjects & Sun Tree Projects held by RML.
25 Jul 2017
146
Share Video

0:22
Welcome to show your material or idea as a leaf on the great tree planted by RML. Royal Mentor Lee holds Main Science Subjects & Sun Tree Projects world-wide.
25 Jul 2017
285
Share Video

2:44
Royal Mentor Lee weighs tin of beer. RML holds Main Science Subjects & Sun Tree Projects world-wide.
30 Jul 2017
214
Share Video

24:11
Bird-eye's view of China - travel china in the sky Royal Mentor Lee is born, grown up and living in Chia. RML holds Main Science Subject & Sun Tree Projects world-wide.
3 Aug 2017
318
Share Video

3:08
RML holds Weapon Show Projects world-wide. Main Science Subjects & Sun Tree Projects are held by Royal Mentor Lee.
8 Aug 2017
188
Share Video

21:06
RML display and analyze three watermelons. Royal Mentor Lee holds Main Science subjects and Sun Tree projects.
18 Aug 2017
228
Share Video

23:28
Royal Mentor Lee spends one day on popular science. Main Science Subjects and Sun Tree Projects are hold world-wide by RML. Science (from Latin scientia, meaning "knowledge") is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe. Contemporary science is typically subdivided into the natural sciences, which study the material universe; the social sciences, which study people and societies; and the formal sciences, which study logic and mathematics. The formal sciences are often excluded as they do not depend on empirical observations. Disciplines which use science, like engineering and medicine, may also be considered to be applied sciences. From classical antiquity through the 19th century, science as a type of knowledge was more closely linked to philosophy than it is now, and in the Western world the term "natural philosophy" once encompassed fields of study that are today associated with science, such as astronomy, medicine, and physics.[5][b] However, during the Islamic Golden Age foundations for the scientific method were laid by Ibn al-Haytham in his Book of Optics.[6][7][8][9][10] While the classification of the material world by the ancient Indians and Greeks into air, earth, fire and water was more philosophical, medieval Middle Easterns used practical and experimental observation to classify materials. In the 17th and 18th centuries, scientists increasingly sought to formulate knowledge in terms of physical laws. Over the course of the 19th century, the word "science" became increasingly associated with the scientific method itself as a disciplined way to study the natural world. It was during this time that scientific disciplines such as biology, chemistry, and physics reached their modern shapes. That same time period also included the origin of the terms "scientist" and "scientific community", the founding of scientific institutions, and the increasing significance.
23 Aug 2017
348
Share Video

1:15:57
battle troops show weapons at training base. Royal Mentor Lee holds Main Science Subjects & Sun Tree Projects world-wide.
23 Aug 2017
311
Share Video