نظریه نسبیت خاص اینشتین - سایت علمی بیگ بنگ
بیگ بنگ: نظریه نسبیت خاص چگونگی ارتباط فضا و زمان را با اشیایی که با سرعتی متداوم در خط راست حرکت می کنند، توضیح می دهد.
Physics Central
بنا به گزارش <anchor>Physics Central</anchor>، ساعت در فضا سریع تر کار می کند زیرا ماهواره های GPS در بالای زمین قرار دارند و جاذبه ضعیفی را تجربه می کنند. پس اگرچه ماهواره های GPS در حال حرکت بوده و به دلیل حرکت شان همه روزه با کُند شدگی هفت میکرو ثانیه ای روبرو هستند، ولی جاذبه ضعیف باعث می شود تا ساعت در حدود 45 میکرو ثانیه سریع تر از یک ساعت زمینی کار کند. لذا در مجموع ساعت ماهواره GPS بطور روزانه 38 میکرو ثانیه سریع تر از ساعت های زمینی کار می کند.
PhysicsCentral
PhysicsCentral

# PhysicsCentral has been retired

September 30, 2022

For over 20 years, PhysicsCentral has communicated the excitement and importance of physics to the public. While this site is now retired, The American Physical Society maintains its commitment to public outreach and engagement in physics.

We encourage you to learn more and [get involved with our current initiatives](https://www.aps.org/programs/outreach/index.cfm), and we hope you will join us as we introduce new ones in the coming months.

- ## PhysicsQuest


PhysicsQuest aims to introduce students to the basic concepts of physics through fun experiments that will sustain their interest in math and science.

[Download materials and plan classroom experiments](https://www.aps.org/programs/outreach/physicsquest/)

- ## STEP UP


STEP UP is a national community of physics teachers, researchers, and professional societies. STEP UP designs high school physics lessons to empower teachers, create cultural change, and inspire young women to pursue physics in college.

[Find lesson materials or get involved](https://engage.aps.org/stepup/home)

- ## Physicists To-Go


Physicists To-Go brings real physicists to classrooms across the country with the goals of increasing science literacy and inspiring young minds to develop a passion for science.

[Get involved or pair with a physicist](https://www.aps.org/programs/outreach/physiciststogo.cfm)

- ## Wiki Scientist Program


The Wiki Scientist Program helps physicists improve the public’s access to physics knowledge, raise awareness of the accomplishments of marginalized groups within physics, and grow as science communicators by editing and adding to Wikipedia.

[Help improve Wikipedia](https://www.aps.org/programs/outreach/wiki-course.cfm)

- ## Science Trust Project


The Science Trust Project aims to empower APS members to contend with misinformation about science in their professional and personal lives and to help them understand the impact of their participation in addressing misinformation.

[Find workshops and fight misinformation](https://www.aps.org/programs/science-trust.cfm)

- ## Webinar Series: Engaging the Public through Science


This series of webinars is focused on helping the physics community to communicate science and physics-based issues with the public.

[Build your public engagement skills](https://www.aps.org/webinars/engaging.cfm)


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