# Inertia **URL:** \ **Category:** 英语词汇\ **Created:** [November 9, 2021, 8:46am UTC](https://eijil.com/t/inertia/284 "2021-11-09T08:46:53Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Tristan](https://eijil.com/user_avatar/eijil.com/tristan/32/986_2.png) [@Tristan](https://eijil.com/u/Tristan)\ **Post date:** [November 9, 2021, 8:46am UTC](https://eijil.com/t/inertia/284/1 "2021-11-09T08:46:53Z")
词性：v. 音标： [ɪˈnɜːrʃə] 释义：惯性，惰性，缺乏活力，保守 _Inertia_ is resistance to change. You hate looking at people’s feet and yet you stay in your job as a shoe salesman year after year. Why? _Inertia_. _Inertia_ is a physics term. Isaac Newtown discovered that a body at rest would stay at rest and a body moving through space would continue moving through space unless an external force (like friction or gravity) caused it to slow down or stop. Sometimes we need an external force to help us get going or to change direction, too, like a friend to tell us to get off the couch or to quit that job at the shoe store. ---
**Author:** ![Tristan](https://eijil.com/user_avatar/eijil.com/tristan/32/986_2.png) [@Tristan](https://eijil.com/u/Tristan)\ **Post date:** [November 9, 2021, 8:47am UTC](https://eijil.com/t/inertia/284/2 "2021-11-09T08:47:36Z")
The ship is traveling by inertia only. ---
**Author:** ![Tristan](https://eijil.com/user_avatar/eijil.com/tristan/32/986_2.png) [@Tristan](https://eijil.com/u/Tristan)\ **Post date:** [November 9, 2021, 9:00am UTC](https://eijil.com/t/inertia/284/3 "2021-11-09T09:00:10Z")
You’d be instantly squished. But in this force field you have no inertia. ---
**Author:** ![Tristan](https://eijil.com/user_avatar/eijil.com/tristan/32/986_2.png) [@Tristan](https://eijil.com/u/Tristan)\ **Post date:** [November 9, 2021, 9:01am UTC](https://eijil.com/t/inertia/284/4 "2021-11-09T09:01:55Z")
Have you disengaged the external inertial dampener? 惯性阻尼器 ---
**Author:** ![Tristan](https://eijil.com/user_avatar/eijil.com/tristan/32/986_2.png) [@Tristan](https://eijil.com/u/Tristan)\ **Post date:** [November 9, 2021, 9:03am UTC](https://eijil.com/t/inertia/284/5 "2021-11-09T09:03:58Z")
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**Author:** ![Tristan](https://eijil.com/user_avatar/eijil.com/tristan/32/986_2.png) [@Tristan](https://eijil.com/u/Tristan)\ **Post date:** [November 9, 2021, 9:07am UTC](https://eijil.com/t/inertia/284/6 "2021-11-09T09:07:41Z")
Is there any way we can repair the inertial navigation system? 惯性导航系统 ---
**Author:** ![Tristan](https://eijil.com/user_avatar/eijil.com/tristan/32/986_2.png) [@Tristan](https://eijil.com/u/Tristan)\ **Post date:** [May 30, 2024, 10:38am UTC](https://eijil.com/t/inertia/284/7 "2024-05-30T10:38:47Z")
@Chatbot 你是一个英语教学的大师，你会用通俗易懂的方式给学生讲解各类英语知识，现在请你给我解释下上面帖子中我着重讲解的单词，介绍下这些单词在正式文书和口语中的各类含义，各举几个地道，自然的例子。介绍下这些单词的来历，以及我如何才能记住这些单词呢？ ---
**Author:** ![Chatbot](https://eijil.com/letter_avatar_proxy/v4/letter/c/8c91f0/32.png) [@Chatbot](https://eijil.com/u/Chatbot)\ **Post date:** [May 30, 2024, 10:39am UTC](https://eijil.com/t/inertia/284/8 "2024-05-30T10:39:32Z")
Sure, @Tristan, I’d be happy to help explain the word “inertia” and related terms you mentioned. Let’s break it down: ### 1. Inertia (惯性) #### **Meaning and Usage:** - **Physics Context:** In physics, _inertia_ refers to the tendency of an object to resist changes in its state of motion. It’s the reason why a stationary object stays still, and a moving object keeps moving unless acted upon by an external force. - **Everyday Context:** In daily life, inertia can describe a person’s reluctance or inability to change their habits, routines, or situations. #### **Examples:** - **Physics:** “The car continued to move forward by inertia even after the engine was turned off.” - **Everyday:** “Despite wanting a career change, his inertia kept him in the same job for years.” #### **Origin:** The term comes from Latin “iners,” meaning idle or lazy, which perfectly describes the resistance to change. #### **How to Remember:** Think of the word “inert,” which means inactive or motionless. Inertia is related to maintaining that state unless an external force intervenes. ### 2. Inertial Dampener (惯性阻尼器) #### **Meaning:** An inertial dampener is a hypothetical device often mentioned in sci-fi that counteracts the effects of inertia, making space travel more comfortable by reducing the force of sudden movements. #### **Examples:** - “Have you disengaged the external inertial dampener?” (Sci-fi context) - “The inertial dampeners failed, and we felt the full force of acceleration.” ### 3. Inertial Navigation System (惯性导航系统) #### **Meaning:** An inertial navigation system (INS) is a type of navigation that uses a computer, motion sensors (accelerometers), and rotation sensors (gyroscopes) to calculate the position, orientation, and velocity of a moving object without needing external references. #### **Examples:** - “Is there any way we can repair the inertial navigation system?” - “The airplane’s INS needs recalibration after the long flight.” #### **Origin and Memory Tip:** Think of “navigation” combined with “inertia.” It’s about using internal measurements to guide movement, maintaining direction despite external forces. ### 4. Force Field and Inertia #### **Meaning:** In sci-fi, a force field that nullifies inertia prevents the consequences of sudden movements, effectively making sudden stops or changes in movement safe without experiencing the associated forces. #### **Examples:** - “You’d be instantly squished. But in this force field, you have no inertia.” - “The force field around the ship nullifies the impact of rapid maneuvers.” ### Tips to Remember and Use: - **Make Associations:** Link each term with a vivid image or scenario. For instance, imagine a spaceship using an inertial dampener to avoid tossing its crew around. - **Practice Contexts:** Use the words in different contexts. Discussing sci-fi can be a fun way to remember inertial terms. - **Repetition:** Regularly use these words in sentences both in written and spoken English to build familiarity. ### Formal and Informal Usage: - **Formal:** “The inertial navigation system is crucial for maintaining precise movements in aerospace engineering.” - **Informal:** “I need an inertial dampener for my hectic life to avoid burnout!” By understanding the origins, usage contexts, and practicing regularly, these terms will become a natural part of your vocabulary.