Danh sách bài viết của Lê Thị Khánh Huyền

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Bài viết của Lê Thị Khánh Huyền

Temperature

The concept of temperature has evolved from the common concepts of hot and cold. Human perception of what feels hot or cold is a relative one. For example, if you place one hand in hot water and the other in cold water, and then place both hands in tepid ...

Tác giả: Lê Thị Khánh Huyền viết 15:33 ngày 25/05/2018 chỉnh sửa

Introduction to Culture

Graffiti’s mix of colorful drawings, words, and symbols is a vibrant expression of culture—or, depending on one’s viewpoint, a disturbing expression of the creator’s lack of respect for a community’s shared space. ...

Tác giả: Lê Thị Khánh Huyền viết 15:33 ngày 25/05/2018 chỉnh sửa

Fusion

While basking in the warmth of the summer sun, a student reads of the latest breakthrough in achieving sustained thermonuclear power and vaguely recalls hearing about the cold fusion controversy. The three are connected. The Sun’s energy is produced ...

Tác giả: Lê Thị Khánh Huyền viết 15:33 ngày 25/05/2018 chỉnh sửa

How Neurons Communicate

All functions performed by the nervous system—from a simple motor reflex to more advanced functions like making a memory or a decision—require neurons to communicate with one another. While humans use words and body language to communicate, neurons use ...

Tác giả: Lê Thị Khánh Huyền viết 15:32 ngày 25/05/2018 chỉnh sửa

Length Contraction

People might describe distances differently, but at relativistic speeds, the distances really are different. (credit: Corey Leopold, Flickr) Have you ever driven on a road that seems like it goes on forever? If you look ahead, you might say ...

Tác giả: Lê Thị Khánh Huyền viết 15:32 ngày 25/05/2018 chỉnh sửa

The Process of Aging

As human beings grow older, they go through different phases or stages of life. It is helpful to understand aging in the context of these phases. A life course is the period from birth to death, including a sequence of predictable life events such ...

Tác giả: Lê Thị Khánh Huyền viết 15:32 ngày 25/05/2018 chỉnh sửa

Population Demography

Populations are dynamic entities. Populations consist all of the species living within a specific area, and populations fluctuate based on a number of factors: seasonal and yearly changes in the environment, natural disasters such as forest fires and volcanic ...

Tác giả: Lê Thị Khánh Huyền viết 15:32 ngày 25/05/2018 chỉnh sửa

Media and Technology in Society

The modern printing press (as well as its dated counterparts) embodies the intertwined nature of technology and media. (Photo courtesy of Anuj Biyani/flickr) Technology and the media are interwoven, and neither ...

Tác giả: Lê Thị Khánh Huyền viết 15:31 ngày 25/05/2018 chỉnh sửa

Perspectives on the Phylogenetic Tree

The concepts of phylogenetic modeling are constantly changing. It is one of the most dynamic fields of study in all of biology. Over the last several decades, new research has challenged scientists’ ideas about how organisms are related. New models of ...

Tác giả: Lê Thị Khánh Huyền viết 15:31 ngày 25/05/2018 chỉnh sửa

Magnetic Fields and Magnetic Field Lines

Einstein is said to have been fascinated by a compass as a child, perhaps musing on how the needle felt a force without direct physical contact. His ability to think deeply and clearly about action at a distance, particularly for gravitational, electric, ...

Tác giả: Lê Thị Khánh Huyền viết 15:31 ngày 25/05/2018 chỉnh sửa

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Temperature

Introduction to Culture

Fusion

How Neurons Communicate

Length Contraction

The Process of Aging

Population Demography

Media and Technology in Society

Perspectives on the Phylogenetic Tree

Magnetic Fields and Magnetic Field Lines

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