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صفر کلوین چیست؟
به مناسبت ۲۶ ژوئن زادروز ویلیام تامسون (لرد کلوین)

در سال ۱۸۴۸ لورد کلوین موفق شد بر اساس نظریه گرما و با انجام آزمایشات متعدد، درجه بندی از حرارت اجسام را طراحی کند که نقطه صفر آن وابسته به خصوصیات اجسام نبود.
این درجه صفر را صفر مطلق یا صفر کلوین می‌نامند و درجه حرارتی است که جنبش مولکولها حداقل است برابر منهای ۲۷۳.۱۵ درجه سانتی گراد
Thomson, W (1848). "On an Absolute Thermometric Scale founded on Carnot's Theory of the Motive Power of Heat, and calculated from Regnault's observations". Proceedings of the Cambridge Philosophical Society. 1: 66–71

فضای بین کهکشانی دمای ۲.۷۳ کلوین دارد و سردترین نقطه جهان هستی در آزمایشگاه‌های کره زمین ایجاد شده است (۳۸ پیکوکلوین)

فیلم در مورد اهمیت صفر مطلق است.

#Science #Physics #Kelvin

@DVMLibrary

Dr. Nourbakhsh
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صفر کلوین چیست؟
به مناسبت ۲۶ ژوئن زادروز ویلیام تامسون (لرد کلوین)

در سال ۱۸۴۸ لورد کلوین موفق شد بر اساس نظریه گرما و با انجام آزمایشات متعدد، درجه بندی از حرارت اجسام را طراحی کند که نقطه صفر آن وابسته به خصوصیات اجسام نبود.
این درجه صفر را صفر مطلق یا صفر کلوین می‌نامند و درجه حرارتی است که جنبش مولکولها حداقل است برابر منهای ۲۷۳.۱۵ درجه سانتی گراد
Thomson, W (1848). "On an Absolute Thermometric Scale founded on Carnot's Theory of the Motive Power of Heat, and calculated from Regnault's observations". Proceedings of the Cambridge Philosophical Society. 1: 66–71

فضای بین کهکشانی دمای ۲.۷۳ کلوین دارد و سردترین نقطه جهان هستی در آزمایشگاه‌های کره زمین ایجاد شده است (۳۸ پیکوکلوین)

فیلم در مورد اهمیت صفر مطلق است.

#Science #Physics #Kelvin

@DVMLibrary
hottg.com/DVMLibrary/6110
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NEWS: Telegram supports Facetime video calls NOW!

Secure video calling is in high demand. As an alternative to Zoom, many people are using end-to-end encrypted apps such as WhatsApp, FaceTime or Signal to speak to friends and family face-to-face since coronavirus lockdowns started to take place across the world. There’s another option—secure communications app Telegram just added video calling to its feature set, available on both iOS and Android. The new feature is also super secure—like Signal and WhatsApp and unlike Zoom (yet), video calls will be end-to-end encrypted.

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