مطابق مشاهدات تجربی هابل و تئوری نسبیت عام، کیهان در حال انبساط است. فوتونی را تصور کنید که از منبعی گسیل و در خلأ منتشر می‌شود. فضا در حال منبسط شدن است، بنابراین طول موج این فوتون افزایش می‌یابد. تندی نور ثابت است، با افزایش طول موج، فرکانس باید کاهش پیدا کند. اما فرکانس فوتون مستقیما با انرژی آن مرتبط است. با کاهش فرکانس، انرژی فوتون کم می‌شود! انرژی کجا می‌رود؟ این در تناقض کامل با پایستگی انرژی است. @Quantum Physics

Quantum Physics | United States America (US)

Create: 2025-05-23 Update: 2025-06-30 16:13:18

مطابق مشاهدات تجربی هابل و تئوری نسبیت عام، کیهان در حال انبساط است. فوتونی را تصور کنید که از منبعی گسیل و در خلأ منتشر می‌شود. فضا در حال منبسط شدن است، بنابراین طول موج این فوتون افزایش می‌یابد. تندی نور ثابت است، با افزایش طول موج، فرکانس باید کاهش پیدا کند. اما فرکانس فوتون مستقیما با انرژی آن مرتبط است. با کاهش فرکانس، انرژی فوتون کم می‌شود! انرژی کجا می‌رود؟ این در تناقض کامل با پایستگی انرژی است.
آیا قانون پایستگی انرژی از اعتبار ساقط می‌شود؟
متاسفانه بله! پایستگی انرژی در فضازمان ایستا برقرار است. در کیهان غیر ایستا و در حال انبساط ما، پایستگی انرژی وجود ندارد.
اما این پایستگی انرژی به طور موضعی و در مقیاس هایی که میتوان از انبساط کیهان چشم پوشی کرد برقرار می‌ماند.

🆔 @Physics3p

Quantum Physics

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